https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470474#M120409 <P>data want;</P><P>set have;</P><P>by id;</P><P>if first.id then seq+1;</P><P>run;</P> Thu, 14 Jun 2018 22:34:42 GMT novinosrin 2018-06-14T22:34:42Z https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470469#M120405 <P>Hi all!&nbsp;I have a question about how to assign a sequential number by one variable.</P><P>&nbsp;</P><P>Below is the dataset I'm starting with:</P><P>&nbsp;</P><P>id</P><P>213</P><P>213</P><P>413</P><P>413</P><P>535</P><P>535</P><P>617</P><P>617</P><P>&nbsp;</P><P>This is what I would like</P><P>id &nbsp; &nbsp; &nbsp; &nbsp;seq</P><P>213 &nbsp; &nbsp; &nbsp;1</P><P>213 &nbsp; &nbsp; &nbsp;1</P><P>413 &nbsp; &nbsp; &nbsp;2</P><P>413 &nbsp; &nbsp; &nbsp;2</P><P>535 &nbsp; &nbsp; &nbsp;3</P><P>535 &nbsp; &nbsp; &nbsp;3</P><P>617 &nbsp; &nbsp; &nbsp;4</P><P>617 &nbsp; &nbsp; &nbsp;4</P><P>&nbsp;</P><P>Any advice?</P> Thu, 14 Jun 2018 22:30:04 GMT https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470469#M120405 SarahW13 2018-06-14T22:30:04Z https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470474#M120409 <P>data want;</P><P>set have;</P><P>by id;</P><P>if first.id then seq+1;</P><P>run;</P> Thu, 14 Jun 2018 22:34:42 GMT https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470474#M120409 novinosrin 2018-06-14T22:34:42Z https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470475#M120410 <P>Thank you!</P> Thu, 14 Jun 2018 22:38:07 GMT https://communities.sas.com/t5/SAS-Programming/Assign-sequential-number-by-one-variable/m-p/470475#M120410 SarahW13 2018-06-14T22:38:07Z