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Owner: websterwest
Created: Jun 2, 2009
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Creating bar plots from summary data
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Summary data in StatCrunch is used to refer to data sets that do not consist of individual measurements but rather data summarized from other sources. The attached New Hampshire primary data is an example of summary data. In this case, we do not have the results for all of the individual votes that were cast, but rather we have the summary totals for each candidate in the democratic and republican primaries.

Data set 1. NH Primary Data   [Info]
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This report will discuss how to make bar plots with summary data using the New Hampshire primary data as an example. The steps needed to construct a bar plot for the results from the democratic primary will be discussed. Begin by selecting the Graphics > Bar Plot > with summary option. Next, choose the Name column for the Categories in selector and the Votes column for the Counts in selector. Also, to consider only the democratic party results, input Party = Dem in the Where text box as shown below.

Result 1: Snapshot of Bar plot with summary Dialog   [Info]
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Click the Next button to specify more options. To combine the numbers for candidates with very low percentages (say less than 5%) so that they do not obscure the graph, specify 5 for the "Other" if percent less than option. Also, to order the bars in descending order in terms of vote percentage, choose Count Descending for the Order by option. By clicking the Next button again, you can also specify other graph options.

Result 2: Snapshot of Bar plot with summary Dialog   [Info]
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Finally, click Create Graph to generate the bar plot shown below.

Result 3: NH Democratic Primary Results   [Info]
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<A href="">Creating bar plots from summary data</A>

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By destirichardson
Dec 11, 2013

Do you know how to make the values go in descending order for a scattterplot?
By websterwest
Jun 2, 2009

Thanks I have fixed it now.
By amrothan
Jun 2, 2009

Just a little point: In the text "Also, to consider only the democratic party results, input Party = GOP in the Where text box as shown below" appears, but the correct "Party = Dem" is in the window that is shown.

Always Learning