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03-22-2012 10:19 AM

Howdy

How would I output the results from a proc means to a SAS data set? I know how to output out a mean of a collapsed variable but I also need to output out the standard deviation for each collapsed variable.

Here is what I can do:

proc means data=digit;

by x;

var y;

output out=means mean=ybar;

run;

Is there a statement I could use to create a std dev for y?

I appreciate any help someone could give me.

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Solution

03-22-2012
10:27 AM

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Posted in reply to jdub

03-22-2012 10:27 AM

I'm not sure what you mean by collapsed variable but to add standard deviation to your output add

std= ystd after mean=ybar.

If you want to process more variables such as with :

var var1 var2 var3 ... ;

you could use

output out=<datasetname> mean= std= <other requested statistics> / autoname;

The autoname option will create variable names based on your variable name and the requested statistic so you don't have to.

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Solution

03-22-2012
10:27 AM

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Posted in reply to jdub

03-22-2012 10:27 AM

I'm not sure what you mean by collapsed variable but to add standard deviation to your output add

std= ystd after mean=ybar.

If you want to process more variables such as with :

var var1 var2 var3 ... ;

you could use

output out=<datasetname> mean= std= <other requested statistics> / autoname;

The autoname option will create variable names based on your variable name and the requested statistic so you don't have to.

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Posted in reply to ballardw

03-22-2012 10:48 AM

thank ya.

by collapsed obs I was trying to say that the mean of y was generated by x over a basket of time points but did a poor job of communicating this