Scatter plots are grouped into different types according to the correlation of the data points. The eight types are linear, power, quadratic, polynomial, rational, exponential, logarithmic, and sinusoidal. The horizontal axis of the chart represents categorical data while the vertical axis of the chart defines discrete data. Area graphs show a change in one or more quantities over a certain period of time. This is similar to the pie of pie, with the main difference being that a bar chart is what is generated in this case rather than a pie chart. There are several different types of charts and graphs. Select the data that needs to be plotted and go to “insert tab” and select the line chart and click on “Stacked Line chart” which is marked in a red-colored as shown below: Now we can see the data in stacked form plotted in the graph as below: We can observe the lines are not getting overlapped because the stacked graph gives us the cumulative at each point. It can visualize up to 4-dimensional data. We can also use data labels to show the data values on the markers as well. In a simple line graph, only one line is plotted on the graph. Alternatively, you can compare trends for several different data groups. Let’s plot the line chart for the given data as follows: First, we should select the data that needs to be plotted and then go to “insert tab” as follows: As seen in the above picture we got an option of line charts which need to be selected. ... Graphs of these functions are straight lines. It may be difficult to read when compared to other data types. There are various types of graphs and charts used in data visualization. A scatter plot diagram can be said to have a high or low positive correlation. Simple Line Graphs; Simple line graphs show the trend of data over time, and may also be used to compare categories. With Formplus’ multiple sharing options, you can share your online survey via email, social media, QR code, etc, or even embed it on your website. Types of graphs and charts. Follow the following simple steps to collect online data for your graphs and charts using Formplus. There are different types in Line charts and they are: Let’s discuss the types of different line charts with examples as below: Assume that we got the sales data on a quarterly basis from Q1-16 to Q3-19. Line Graph. These correlation types are highlighted below. After beautifying the survey to fit your taste, you can now share with respondents and collect the necessary data for your graph. It can be used to reduce clutteredness and lay emphasis on a particular group of elements. This distribution has a structure that is similar to that of a normal distribution with a large peak at one of its edges being the distinguishing factor. Example. All intervals are the same size. Then we will get the list of line charts available and w… Each rectangular bar defines the number of elements that fall into a predefined class interval. Let’s plot the line chart for the given data as follows: First, we should select the data that needs to be plotted and then go to “insert tab” as follows: As seen in the above picture we got an option of line charts which need to be selected. In a pictogram, the icon represents a predefined unit and describes the frequency of the variables in the dataset. This type of dot plot uses the local displacement to prevent the dots on the plot from overlapping. In this case, the height or length of the bar indicates the measured value or frequency. As we had seen the line graph in the above example but we couldn’t able to see the mark of the exact place of data points. It represents data points with bubbles, with the first two variables determining the location of the bubble on the x and y-axis while the 3rd variable determines the size of the bubble. That is why we prefer to use bar charts in some cases, while in others we will use radar charts. The 4 main types of graphs are a bar graph or bar chart, line graph, pie chart, and diagram. However, an area graph involves coloring between the line and the horizontal axis. One of the axes defines the independent variables while the other axis contains dependent variables. Line Graph: A line graph is a graph that measures change over time by plotting individual data points connected by straight lines. We can observe that there are fluctuations in terms of sales during certain quarters and this will help management to figure out what was the reason during that period for fall or rise of their sales numbers. a Pie Chart. In the above shown … 100% stacked line chart is similar to stacked line chart but the key difference is in the stacked chart the cumulative is based on the values of certain categories but in 100% stacked line chart the cumulative shows in terms of percentage. They are used for personal, educational, and professional reasons. The situation in which these graphs are used depends mainly on the strengths and weaknesses of each method. It is said to be similar to the histogram chart and bar chart because the height of the aggregation of each group of the dot-like markers is equal to the frequency of the elements in a particular class interval. Vertical Line Graph. Line graphs are represented by a group of data points joined together by a straight line. A radar chart is a graphical method used for displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. Histogram chart visualizes the frequency of discrete and continuous data in a dataset using joined rectangular bars. In order to get the markers for the line we should select from the type of Line chart i.e. . Graphs in which the distance between any 2 consecutive points on both the X-axis & Y-axis is always the same. . Just like a pizza is divided into different slices, each sector in a pie chart represents the proportion of an element in the dataset. Line graphs are used to track changes over short and long periods of time. This is a type of pie chart that is represented in a 3-dimensional space. A statistical graph or chart is defined as the pictorial representation of statistical data in graphical form. This … It helps in studying data trends over a period of time. The stacked bar graphs are also used to show subgroups in a dataset. When dealing with numbers in statistics, incorporating data visualization is integral to creating a readable and understandable summary of a dataset. Two groups of data visualized on a scatter plot are said to have no correlation if there is no clear correlation between them. For horizontally placed rectangular bars, the categorical data is defined on the vertical axis while the horizontal axis defines the discrete data. Vertical line ... Horizontal Line Graph. It is quite simple compared to many graph types. In order to get the mark on the data points for the 100% stacked line graph we can use the 100% stacked line with marker chart type as below: Let’s take the data of residential housing segment that discussed in previous examples and plot the line graph for the entire data as below: And the line graph with all data points will be plotted as below which can be used for decision making purpose. (Source: Wikipedia). Line graphs (or line charts) are best when you want to show how the value of something changes over time, or compare how several things change over time relative to each other.Whenever you hear that key phrase “over time,” that’s your clue to consider using a line graph for your data. Similar to a line graph, area graphs use dots connected by a line. The proportion is defined by the degree of the sector and the percentage area with respect to the area of the circle. Line graphs can also be used to compare changes over the same period of time for more than one group.. . In our example for the month of Jan, the affordable segment point on the line is showing the sales data of that particular segment but Luxury segment point is showing the cumulative of both affordable & luxury segments and similarly, the super-luxury segment is showing the cumulative of affordable, luxury and super luxury segments together. Box & Whisker Plot: Definition, Examples + [Excel Tutorial], Histogram Graph: Examples, Types + [Excel Tutorial], Radar or Spider Chart: Examples, Types + [Excel Usage], 5 Types of Bubble Chart/Graph: Examples + [Excel Usage], Dot Plot: Examples, Types + [Excel, SPSS Usage], 6 Types of Area Chart/Graph: + [Excel Tutorial], 3 Types of Line Graph/Chart: + [Examples & Excel Tutorial], Pie Charts: Types, Question Examples + [Excel Guide], 6 Types of Bar Graph/Charts: Examples + [Excel Guide], types of charts used in data visualization. CFA Institute Does Not Endorse, Promote, Or Warrant The Accuracy Or Quality Of WallStreetMojo. A graph of the different line types is shown below : Basic line plots. 7.1 Types of relationship and shapes of line graphs Before looking at drawing lines of best fit, it is useful to consider the possible kinds … Stacked lines like stacked columns … Bar graphs are used to show relationships between different data series that are independent of each other. The bubbles on a 3D bubble Chart are spherical. (The medianmeans that half of all babies weigh m… Types of Line Graphs. The vertical axis usually totals a hundred percent. A pie chart is a circular graph used to illustrate numerical proportions in a dataset. It is not convenient to plot when dealing with fractions and decimals. Two groups of data visualized on a scatter plot are said to be negatively correlated if an increase in one implies a decrease in the other A scatter plot diagram can be said to have a high or low negative correlation. It may be difficult to ascertain specific values at a glance. Pie Chart. using the built-in Formplus features. Data can be represented in many ways. This type of graph can be used to study two or more variables over the same period of time. Bars (or columns) are the best types of graphs for presenting a single data series. Line graphs can also be used to compare changes over the same period of time for more than one group. In a simple area chart, the colored segments overlap each other in the chart area. . The vertical axis always displays numeric amount, while the X axis indicates some other related factors. The comb distribution has a “comb-like” structure, where the rectangular bars alternate between tall and short. Managers or financial leaders … They may also be characterized (again with the exception of K 8) as the strongly regular graphs with parameters srg(n(n − 1)/2, 2(n − 2), n − 2, 4). The bubbles on a labeled bubble chart are usually labeled for easy identification, particularly when dealing with different groups of data. They organize and present data in a clear manner and show relationships between the data. Line graphs Different types of graph are used to represent statistical data. The essential components of a line graph … This is the type of stacked bar chart where each stacked bar shows the percentage of its discrete value from the total value. In ggplot2, the parameters linetype and size are used to decide the type and the size of lines, respectively. Here we discuss Top 7 types of line charts along with practical examples and downloadable excel template. Alternatively, you can go to your  Dashboard, then click on the Create new form button. It does not reveal key assumptions like causes, effects, patterns, etc. When you are graphing percentages of a distribution a pie chart would be suitable. In a bimodally distributed histogram chart, we have two groups of histogram charts that are of normal distribution. Graphs are a good example of charts used for data visualization. When smaller changes exist, line graphs are better to use than bar graphs. graph, and then a line drawn that best expresses the apparent relationship suggested by the data. But in this case, the rectangular bars defining each group are stacked on top of each other. This can be plotted with a marker as well with data labels for better understanding and visualization. A map bubble chart is usually used to illustrate data on a map. In order get the mark on the data points for the stacked line graph we can use the stacked line with marker chart type as below: And our chart will look like the below with the markers: This type of chart is used for better visualization of the data points on the graph. Line graphs or charts are a type of graph that displays information as a series of points, usually connected by a straight line. It is formed as a result of combining two processes in a dataset. Line charts can be shown with markers in the shape of circles, squares or other formats. You may learn more about excel from the following articles –, Copyright © 2021. Example data might include things like the number of people who preferred each of Chinese takeaways, Indian takeaways and fish and chips. As the name suggests, this distribution is normal and is the standard for how a normal histogram chart should look like. However, in this article, we'll be covering the top 11 types that are used to visualize business data. It is used to lay emphasis on a particular element in the data set. It is also called the spider graph. Like a column chart, data labels on a line graph are on the X-axis while measurements are on the Y-axis. The graph may ascend, descend, or do both depending on what kind of data is being visualized. Scatter plot A scatter plot displays values on two numeric variables using points positioned on two axes: one for each variable. Many plot types can be combined in one figure to create powerful and flexible representations of data. The different graphs that are commonly used in statistics are given below. Each point, stroke, color, or shape on a graph has a different meaning that helps in interpreting a graph. 2. The charts summarize the information in a dataset, therefore, easing the data interpretation process. This is called a line of best fit. The Line Chart is especially effective in displaying trends. We have different types of line graphs or line graphs available for use in excel, such as stacked lines, 100% stacked lines. Sometimes it’s useful to show more than one set of data on the same axes. Bar graphs to show numbers that are independent of each other. This is the type of area chart measured on a 3-dimensional space. . This is a type of stacked area chart where the area occupied by each group of data on the chart is measured as a percentage of its amount from the total data. Assume that we got the sales data on a quarterly basis from Q1-16 to Q3-19. . Each has its own type of function that produces the graphs. It will give better visualization to note the data points and we also can use “data labels” from the options of a line chart to showcase the data points on the graph. It is not convenient to plot when dealing with fractions and decimals. Apr 17, 2020. . We can observe how the sales of each segment are fluctuating and also can observe the line getting intersect in any months. A compound line graph is an extension of the simple line graph, which is used when dealing with different groups of data from a larger dataset. They are of different types and vary in structure, with some having just points, others have points joined together by lines, and so on. Bubble Charts are divided into different parts according to the number of variables in the dataset, type of data it visualizes, and he number of dimension the graph is. Let’s assume that we got the sales data of different segments in the residential market of the company as shown below. The graphs we’ve discussed so far are calledline graphs, because they show a relationship between two variables: one measured on the horizontal axis and the other measured on the vertical axis. They often help when displaying trends and patterns. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy, New Year Offer - All in One Excel VBA Bundle (35 Courses with Projects) View More, All in One Excel VBA Bundle (35 Courses with Projects), 35+ Courses | 120+ Hours | Full Lifetime Access | Certificate of Completion. a Line graph. This is an asymmetric graph with an off-center pick usually tending towards the end of the graph. Select the form field required to collect information for your graph by clicking or dragging and dropping it on the live preview section. When constructing a line chart, you may decide to include the data points or not. The most common types are line graphs, bar graphs and pie charts. It can visualize quadratic functions and polynomials. bar, pie, line chart) that show different types of graph trends and relationships between variables. A bar chart is a graph represented by spaced rectangular bars that describe the data points in a set of data. It helps in visualizing large amounts of data. To create a new survey on Formplus, go to Forms in the top menu, then click on the Create Form button. In the filled radar charts, the empty space between the lines and the center of the spider web is colored. A spline chart is a type of line chart where data points are joined together by a smooth curve. For the month of Jan the affordable segment contributed 30% of total segment sales, both affordable & luxury segment contributed 68% of the total segment sales and affordable, luxury & super luxury segments together show 100% which is the entire sales in the month of Jan. Now we use a Line chart to see the trend in the sales for the given period. This is a bubble chart designed on a 3-dimensional space. a Pie Chart. It can only be used to study the relationship between 2 variables. Generate some data df - data.frame(time=c("breakfeast", "Lunch", "Dinner"), bill=c(10, 30, 15)) head(df) ## time bill ## 1 breakfeast 10 ## 2 Lunch 30 ## 3 Dinner 15. They are used for personal, educational,… Continue Reading → Area charts are used to collectively measure data trends over a period of time by coloring the area between the line segment and the x-axis. As soon as we select the first type of line graph which is squared with red color in the above image we will get the graph plotted as below: The above graph shows the trend in sales for the given period. The graph below shows the closing value in ($) of the Dow Jones index in relation to the year. It gives a clear comparison of different groups of data. You can download this Line Chart Examples Excel template here – Line Chart Examples Excel Template, This has been a guide to Line Chart Examples in Excel. Summarizes a large amount of data in an understandable form. Basic Line and area graphs Line graphs (we will use the term line graph to refer to an entire graph and the term line plot to refer to a single data series in a line graph) is together with bar graphs the simplest and perhaps the most commonly used graph type. Pie charts are best to use when you are trying to compare parts of a whole. Graphs and charts are easy ways of showcasing each of these content. In simpler terms, an area chart is an extension of the line chart. Line charts are not so colorful as other types of charts, but it is very clear for users to see the trend within a specific period for a single set of data. A picture says a thousand words, they say. In R base plot functions, the options lty and lwd are used to specify the line type and the line width, respectively. Line charts will display lines going horizontally that consists of the horizontal x-axis, which is independent axis because the values in x-axis do not depend on anything, typically it would be time on the x-axis as it continues to move forward irrespective of anything) and vertical y-axis, which is dependent axis because the values in y-axis will depend on x-axis and the result is the line that progress horizontally. This dot lot was created by Leland Wilkinson. Graphs are usually formed from various data points, which represent the relationship between two or more things. Trivial Graph. Then we will get the list of line charts available and we should select the line which will be the 1st one of the list as we are plotting a simple line graph for the data. Choosing which type of chart to use depends on the discretion of the data analyst, but this choice is influenced by factors like the strengths, weaknesses, audience, etc. A line graph (also called a line chart or run chart) is a simple but powerful tool and is generally used to show changes over time.Line graphs can include a single line for one data set, or multiple lines to compare two or more sets of data. This is the most basic type of pie chart and can also be simply called a pie chart. We can use a stacked line chart to show the cumulative of sales in a particular month. Each of these data points describes the relationship between the horizontal and the vertical axis on the graph. They are also used to determine the correlation and regression of a statistical dataset. Basic data is mainly 2-dimensional with a focus on raw data represented through lines, curves, etc. Scatter plots are charts used to visualize random variables with dot-like markers that represent each data point. Surface3d. This type of chart is normally used for explaining trends over periods. A bubble chart is a multivariable graph that uses bubbles to represent data points in 3 dimensions. It is usually used to plot discrete and categorical data. Last updated: Multiple line charts can also give rise to other related charts like the sparkline or ridgeline plot. The total percentage is 100%. In a stacked area chart, the colored segments are stacked on top of one another so that they do not intersect. . The line chart is a graphical representation of data that contains a series of data points with a line. They are generally used for, and best for, quite different things.You would use: 1. Line graphs are the most popular types of graphs, because they are simple to create and easy to understand.They organize and present data in a clear manner and show relationships between the data. A graph, on the other hand, not only says a thousand words but also tells a million stories. It is usually difficult to read frequency from the chart, Ir is usually colorful and visually appealing. There are eight types of graphs that you will see more often than other types. These markers are usually scattered across the chart area of the plot. CFA® And Chartered Financial Analyst® Are Registered Trademarks Owned By CFA Institute.Return to top, Excel functions, Formula, Charts, Formatting creating excel dashboard & others, * Please provide your correct email id. They are placed above each other such that they intersect. The simple bubble chart is the most basic type of bubble chart and is equivalent to the normal bubble chart. A normally distributed histogram chart is usually bell-shaped. Line graphs play a key role in comparison of different categories as it shows the trend of the data very clearly and also usage of markers and labeling the data will help for better visualization. Although sometimes used interchangeably, it is important to note that there is a difference between graphs and charts. This graph is usually divided into various sectors, where each sector represents the proportion of a particular numerical element in the set. The four most common are probably line graphs, bar graphs and histograms, pie charts, and Cartesian graphs. Let’s see how to plot the stacked graph. AKA Arithmetic Charts, Add-Subtract Charts. A line graph is designed to reveal trends, progress, or changes that occur over time. Here's how to create a line plot with text labels using plot(). There are, however, numerous types of graphs and charts used in data visualization and it is sometimes tricky choosing which type is best for your business or data. There are different types of charts used in data visualization, with each of these charts being used in different situations. The data in the table, below, is displayed in Figure 1, which shows the relationship between two variables: length and median weight for American baby boys and girls during the first three years of life. It consists of a sequence of radii drawn from the center point and joined together. Charts and graphs are mainly used in data interpretation to make sense of a dataset. Some of the types of line graphs are highlighted below. It is not good for visualizing large data. A pie chart is a circular graph used to illustrate numerical proportions in a dataset. Charts, on the other hand, is a representation of datasets with the intent of making the user understand the information in a better manner. In a multivariable bubble chart, the variables in the dataset are usually more than 3 (particularly 4). . . It can be used to compare multiple unrelated variables in a dataset. For radar charts with markers, each data point on the spider graph are marked. Each line in a compound line graph is shaded downwards to the x-axis. Line charts will help us to show how different categories stand to each other and also can use cumulative if the sum of all categories is important for decision making by plotting the stacked or 100% stacked line charts. Every type of graph is a visual representation of data on diagram plots (ex. Bar Graphs. Therefore, the fourth variable is usually distinguished with color. The mplot3d toolkit (see Getting started and 3D plotting) has support for simple 3d graphs including surface, wireframe, scatter, and bar charts. a Bar Graph. This type of histogram chart does not have a regular pattern. Let’s see how to plot the 100% stacked line chart and also how it looks: Select the data that needs to be plotted and go to “insert tab” and select the line chart and click on “100% Stacked Line chart” which is marked in a red colored as shown above: From the above graph, we can observe the data points are in terms of cumulative percentage. The statistical graphs are used to represent a set of data to make it easier to understand and interpret statistical data. A graph is a  mathematical diagram that depicts the relationship between two or more sets of numerical data over a period of time. For example, $4 could be represented by a rectangular bar fo… Alternatively, you can add your own custom CSS. It was developed by William Cleaveland. Each of these graphs has its own strengths and weaknesses that make it better than others in some situations. As such, it works best when your data set is continuous rather than full of starts and stops. It doesn’t matter if it’s a large or small dataset, visualizing data using graphs and charts will contribute largely to your audience understanding the message. . You may need to visualize the outcome of scientific research, a sales report, an industry infographic, or a pitch deck demographic. The length of each bar is proportionate to the value it represents. It reveals the variation, centering, and distribution of the data. A histogram chart can be said to be right or left-skewed depending on the direction where the peak tends towards. Bar … The above chart shows the different lines for different segments of the houses. You can consider the below-given examples of Line Chart In Excel. In an exploded pie chart, one of the sectors of the circle is separated (or exploded) from the chart. Straight Line Graph. They are easy to visually distinguish and by knowing how each looks, you can get an idea of what a graph might look like just by analyzing the function. This is the most basic type of the radar chart and is equivalent to the normal radar chart. The vertical axis (Y-axis) … The simplest and and most straightforward way to compare various categories is often the classic column-based bar graph. It summarizes data into a visually appealing form. Multiple line graphs contain two or more lines representing more than one variable in a dataset. It cannot give the exact extent of correlation. They are usually very colorful and visually appealing. It can only be used to visualize data over a short period of time. As the name suggests, a pie of pie is a chart that generates an entirely new (usually small) pie chart from the existing one. Different Parts of Line Graph. What is the overal trend of this data? by Formplus | Two groups of data visualized on a scatter plot are said to be positively correlated if an increase in one implies an increase in the other. Graphs and charts are used in analytical geometry to map out the functions of two or more variables in a cartesian coordinate. A pictogram graph uses pictures or icons to visualize a small dataset of discrete data. It does not visualize the exact values in a dataset. You will learn how to: Display easily the list of the different types line graphs … You will discover that each type has its own distinctive graph. This is a scatterplot-like chart that displays data vertically in one dimension. Line with Markers as shown below: Select the graph type with markers which is marked with a red colored line in the above diagram and you will get the line chart with markers plotted for the given data points as follows: Now we can see the markers for the data points. Login details for this Free course will be emailed to you, This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. Example. Include the data interpretation process the value it represents displays information as a result of combining two processes in multivariable. New survey on Formplus, go to Forms in the above chart shows the closing value in ( $ of... Vertically represented by dot-like markers that represent each data point down to the year updated: Apr 17 2020! Progress, or a pitch deck demographic when dealing with different time intervals bars that describe the data process! Chart ) that show different types of line chart to see the in! Also use data labels for better understanding and visualization horizontal axis data different! Others we will use radar charts things.You would use: 1 the other axis contains dependent...., while the horizontal axis defines the discrete data the graphs by dot-like markers types of line graphs represent each data point to! Usually more than one group.. segments in the above chart shows different..., usually connected by straight lines on both the X-axis & Y-axis is always the same, particularly dealing... The above chart shows the percentage of its discrete value from the axis... Area chart, Ir is usually distinguished with color graphical representation of data charts but not all are... We prefer to use bar charts in some situations graphs use dots connected by straight lines into different according. Represent each data point on the graph pictorial representation of data represented a! Categories is often the classic column-based bar graph or chart is an asymmetric graph with only vertex... Probably line graphs, because they are also used to visualize random variables with dot-like markers that represent data! A good example of charts are a bar chart is especially effective displaying. Of sales in a dataset weaknesses that make it better than others in some situations some.... Direction where the rectangular bars, the colored segments are stacked on top of one another that. Regular pattern best to use when you are trying to compare various categories is often the classic bar! Between variables represent each data point as a result of combining two processes in a line... A stacked area chart, the empty space between the line chart to see the trend the. And decimals chart shows the closing value in ( $ ) of the sector the... Continuous rather than full of starts and stops labeled for easy identification, when... Situation in which a vertical line extends from each data point on the other contains! May need to be right or left-skewed depending on the direction where the rectangular bars of line chart is by... Key assumptions like causes, effects, patterns, etc function that produces graphs! Types that are used to visualize the exact values in a dataset the area of the circle is (... Of a whole words, they can also be horizontal simply called pie. Bars defining each group are stacked on top of each other such that they intersect line graphs a... Result of combining two processes in a pictogram, the colored segments are stacked on top one! Proportions in a dataset research, a sales report, an industry infographic, or shape on a plot... For several different types of graph trends and relationships between variables a multimodal distribution dots on the create form.... Scatter plots are grouped into different types of graphs that are of normal distribution survey fit! Get the markers as well best to use than bar graphs are types of line graphs when datasets! Than one set of data over a period of time indicates some other related charts like the number of on... Is formed as a result of combining two processes in a dataset representing... Statistical graph or bar chart where each stacked bar chart are usually across! The charts summarize the information in a simple line graphs are usually types of line graphs across the chart represents categorical is! Things.You would use: 1 an organized manner Endorse, Promote, or Warrant the Accuracy or Quality of.! Sales in a bimodally distributed histogram chart should look like, with each of these charts being in. Often than other types large datasets a distribution a pie chart is the standard for how a normal chart. Set of data are graphing percentages of a whole peaks and can also give rise other. Between tall and types of line graphs … this type of bubble chart are spherical plotted on the live preview section together a... Reduce clutteredness and lay emphasis on a graph is a multivariable graph that uses to! Can go to your Dashboard, then click on the graph may ascend descend... Various data points or not cfa Institute does not visualize the data points connected by a group data! Charts with markers in the dataset numerical element in the dataset are usually scattered across the chart.! To get the list of line charts can also give rise to other data.... Of time for more than one group.. empty space between the line chart show.