But first, you need to arrange your source data properly. As already mentioned, a scatter graph displays two interrelated quantitative variables. So, you enter two sets of numeric data into two separate columns. For ease of use, the independent variable should be in the left column as this column is going to be plotted on the x axis. The dependent variable the one affected by the independent variable should be in the right column, and it will be plotted on the y axis. In our example, we are going to visualize the relationship between the advertising budget for a certain month independent variable and the number of items sold dependent variable , so we arrange the data accordingly:.
With the source data correctly organized, making a scatter plot in Excel takes these two quick steps:. The scatter diagram will be immediately inserted in your worksheet:. Basically, you may consider the work done. Or, you can customize some elements of your graph to make it look more beautiful and to convey the correlation between the two variables clearer. Scatter with lines is best to be used when you have few data points.
For example, here's how you can represent the data for the first four months by using the scatter graph with smooth lines and markers:. The Excel XY plot templates can also draw each variable separately , presenting the same relationships in a different way.
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For this, you should select 3 columns with data - the leftmost column with text values labels , and the two columns with numbers. In our example, the blue dots represent advertising cost, and orange dots represent the items sold:. To view all available scatter types in one place, select your data, click the Scatter X, Y icon on the ribbon, and then click More Scatter Charts… This will open the Inset Chart dialog box with the XY Scatter type selected, and you switch between the different templates at the top to see which one provides the best graphic representation of your data:.
Horizontal Dot Plot
Unlike a classic XY scatter chart, a 3D scatter plot displays data points on three axes x, y, and z in order to show the relationship between three variables. Therefore, it is often called an XYZ plot. Regrettably, there is no way to create a 3D scatter plot in Excel, even in the new version of Excel If you strongly need this chart type for your data analysis, consider using some third-party tool, like plot. The screenshot below shows what kind of a 3D scatter graph this tool can draw:.
To interpret the scatter plot correctly, you need to understand how the variables can relate to each other. Overall, there exist three types of correlation:. Positive Correlation - as the x variable increases, so does the y variable. An example of a strong positive correlation is the amount of time the students spend studying and their grades.
plots with dots! — storytelling with data
Negative Correlation - as the x variable increase, the y variable decreases. Ditching classes and grades are negatively correlated - as the number of absences increases, the exam scores decrease. No Correlation - there is no evident relationship between the two variables; the dots are scattered around the entire chart area. For example, students' height and grades appear to have no correlation as the former does not affect the latter in any way.
As with other chart types, nearly each element of a scatter graph in Excel is customizable. In case your data points are clustered at the top, bottom, right, or left side of the graph, you may want to clean up the extra white space. The below screenshot shows my settings:.
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When creating a scatter graph with a relatively small number of data points, you may wish to label the points by name to make your visual better understandable. Here's how you can do this:. That's it! All data points in our Excel scatter plot are now labeled by name:. When two or more data points are very close to each other, their labels may overlap, as is the case with the Jan and Mar labels in our scatter diagram. To fix this, click on the labels, and then click on the overlapping one so that only that label gets selected.
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Point your mouse cursor to the selected label until the cursor changes to the four-sided arrow, and then drag the label to the desired position. As the result, you will have a nice Excel scatter plot with perfectly legible labels: Add a trendline and equation To better visualize the relationship between the two variables, you can draw a trendline in your Excel scatter graph, also called a line of best fit.
To have it done, right click on any data point and choose Add Trendline… from the context menu. Excel will draw a line as close as possible to all data points so that there are as many points above the line as below. Pretty simple, eh? One of the games I like to play is Settlers of Catan. If you're familiar with this game, you may recognize why I used the following example vertical dot plot.
The trick to creating a vertical dot plot is to simply change the orientation of the text within the cells to vertical. Otherwise, the procedure is pretty much the same as the horizontal dot plot. When you use this approach to create dot plots, you can change the color of the dot chart by just changing the font color.
In the example below, I've used conditional formatting in Excel to automatically make the maximum value red. Tip : If you want a larger dot without increasing the font size, you can use the WingDing font and the letter l el for the repeated character. Warning : Make sure you use the same characters and fonts for all the dots or you could end up misrepresenting your data by making one set of dots larger, and therefore longer, than the others.
Download the Example Dot Plot dot-plot. Fig 1. Click the Insert tab. Click on Clustered Column chart. This will insert the chart in the worksheet area.
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Select years that you want to plot in the chart A2:A6 in this example. Click OK. Now to create a combination chart from this clustered column chart, follow the below steps: Right-click on any of the bars. In the Change Chart Type dialog box, make sure Combo category is selected which it should be by default. Click on the drop-down for Profit Margin.
Check the Secondary Axis checkbox for Profit Margin.
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The above steps would give you the combination chart also called combo chart as shown below. You can now further customize the chart such as change the title, remove the grid lines, etc. Creating Combination Charts in Excel While the first part of creating a chart is the same in all versions of Excel, converting that chart into a combination chart is done a bit differently in Excel Below are the steps to convert a regular clustered column chart into a combo chart in Excel Click on any of the Profit margin bars.
This will select all bars for profit margin. Right-click and select Format Data Series.