standard deviation and average

[miorinnovo]

I'd like to create charts of my variables that include the average and the standard deviation of each series. SO the first variable x1 would be plotted against the average of x1 and the average of x1 plus and minus the standard deviation. Now in order to do this I believe I have to create a scalar for each and then generate a new series of that one variable repeated. I have many variables with different naming conventions. My question, is there a simple way to program the creation of these scalars and series? Thanks!

[EViews Matt]

Hello,

My quick-and-dirty way to create such graphs is via a group, e.g.,

Code: Select all

group g x1 @mean(x1) @mean(x1)+@stdev(x1) @mean(x1)-@stdev(x1)
g.line


The graph can be frozen and it's line styles, legend, etc., modified to create the look you want.

[miorinnovo]

Thats so much better than what i was going for. Thanks!

And can I program this for all variables in one shot somehow?

[EViews Matt]

Sure, you can always introduce a loop that will iterate through your series. For example,

Code: Select all

%series = @wlookup("*", "series")
for %s {%series}
   group g {%s} @mean({%s}) @mean({%s})+@stdev({%s}) @mean({%s})-@stdev({%s})
   %graph_name = %s + "_graph"
   freeze({%graph_name}) g.line
next
delete g


[miorinnovo]

Fantastic, thanks!