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SPSS Graph "Simple Dot"

Posted on 2013-11-22
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Last Modified: 2013-11-23
Hello Experts:

I've created two "Simple Dot" graphs (via "Graphs | Legacy Dialogs | Scatter/Dot | Simple Dot" menu).

For two fields (both of them are on a scale between 0 and 1), the graphs look quite differently.   Please see attached JPGs.

Why does one Simply Dot show "circles" while the other shows "lines"?

EEH
Clip1.jpg
Clip2.jpg
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Question by:ExpExchHelp
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richdiesal earned 500 total points
ID: 39671659
They are both circles.  The circles in the first graph are just tiny (e.g. very zoomed out).  If you double-click on the chart to edit and bothered to enlarge it as much as you could, you would see that the lines are made up of circles.

I believe you can change the number of cases summarized by a single dot manually, if you prefer the dot look (available in the chart edit tools, after double clicking).
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by:ExpExchHelp
ID: 39671871
richdiesal:

Thanks for the info... yes, I've realized that they're also circles.

To recognize them, I had to increase the size of the graph by a factor of ~3.

The graph (where I suggested it has lines) contains approximately 1,500 data points.  

Do you have another recommendation for displaying the data?  Ideally, I don't want to use the scatter plot (requiring two variables).   Instead I merely want to plot these points... without having to increase the size of the graph a great deal.

Thanks,
EEH
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LVL 9

Expert Comment

by:richdiesal
ID: 39671919
I'm not exactly sure what type of data you have, but it looks to be interval or ratio measurement, so most typical in that situation would be a histogram.  You can also rescale histograms as percentages, if you want both graphs on the same metric.
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Author Comment

by:ExpExchHelp
ID: 39671943
Thanks... I appreciate the additional info.

Cheers,
EEH
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