topic Re: std function in SAS Programming https://communities.sas.com/t5/SAS-Programming/std-function/m-p/472349#M121113 <P>proc univariate data=;</P><P>var var1;</P><P>by&nbsp;permno winid month;</P><P>output out=std std=std;</P><P>run;</P><P>&nbsp;</P><P>?</P> Fri, 22 Jun 2018 01:50:51 GMT pau13rown 2018-06-22T01:50:51Z std function https://communities.sas.com/t5/SAS-Programming/std-function/m-p/472348#M121112 <P>Hi,</P><P>&nbsp;</P><P>I have a data as follows and want to create a separate file/ column ,calculating standard deviation of var1 by permno winid and month, any suggestions on how to go about it?</P><P>&nbsp;</P><TABLE border="0" cellspacing="0" cellpadding="0"><TBODY><TR><TD>permno</TD><TD>winid</TD><TD>date</TD><TD>month</TD><TD>var1</TD></TR><TR><TD>1</TD><TD>1</TD><TD>1-Jan-00</TD><TD>Jan-00</TD><TD>&nbsp;</TD></TR><TR><TD>1</TD><TD>1</TD><TD>….31jan00</TD><TD>Jan-00</TD><TD>&nbsp;</TD></TR><TR><TD>1</TD><TD>2</TD><TD>2-Feb-00</TD><TD>Feb-00</TD><TD>&nbsp;</TD></TR><TR><TD>1</TD><TD>2</TD><TD>….28-feb00</TD><TD>Feb-00</TD><TD>&nbsp;</TD></TR><TR><TD>2</TD><TD>3</TD><TD>1-Jan-00</TD><TD>Jan-00</TD><TD>&nbsp;</TD></TR><TR><TD>2</TD><TD>3</TD><TD>….31jan00</TD><TD>Jan-00</TD><TD>&nbsp;</TD></TR><TR><TD>2</TD><TD>4</TD><TD>2-Feb-00</TD><TD>Feb-00</TD><TD>&nbsp;</TD></TR><TR><TD>2</TD><TD>4</TD><TD>….28-feb00</TD><TD>Feb-00</TD><TD>&nbsp;</TD></TR></TBODY></TABLE> Fri, 22 Jun 2018 01:41:12 GMT https://communities.sas.com/t5/SAS-Programming/std-function/m-p/472348#M121112 Amalik 2018-06-22T01:41:12Z Re: std function https://communities.sas.com/t5/SAS-Programming/std-function/m-p/472349#M121113 <P>proc univariate data=;</P><P>var var1;</P><P>by&nbsp;permno winid month;</P><P>output out=std std=std;</P><P>run;</P><P>&nbsp;</P><P>?</P> Fri, 22 Jun 2018 01:50:51 GMT https://communities.sas.com/t5/SAS-Programming/std-function/m-p/472349#M121113 pau13rown 2018-06-22T01:50:51Z