histogram with zero variance

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startz
Non-normality and collinearity are NOT problems!
Posts: 3175
Joined: Wed Sep 17, 2008 2:25 pm

histogram with zero variance

Postby startz » Sun May 14, 2017 11:44 am

If you ask for a histogram and stats for a series with zero variance you get a warning message but nothing else. Not really a bug, but why not just show the output?

EViews Glenn
EViews Developer
Posts: 2554
Joined: Wed Oct 15, 2008 9:17 am

Re: histogram with zero variance

Postby EViews Glenn » Tue May 16, 2017 9:52 am

The distribution graph histogram does display the graph with arbitrary bar width.

The simple statistics histogram view is presumably generating an error on the computation of some of the descriptive statistics because of the zero variance, and possibly in the computation of the bar widths. I'll make a note to see if we can handle the error gracefully, though I remain skeptical of the usefulness of the graph :P

startz
Non-normality and collinearity are NOT problems!
Posts: 3175
Joined: Wed Sep 17, 2008 2:25 pm

Re: histogram with zero variance

Postby startz » Tue May 16, 2017 9:58 am

Would it save effort to replace the graph with a note that says "No variance, hence no histogram?" (Seriously.)


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