As Toby mentioned, symputx would probably be better. However, you refer to variable i in your code and you don't have a variable i .. only the macro variable &i. which is created as a result of the %do i= etc.

Art ------- On Wed, 23 Jul 2008 22:43:20 -0700, learner <cnfengshuang@GMAIL.COM> wrote:

>On Jul 24, 12:27 am, learner <cnfengshu...@gmail.com> wrote: >> On Jul 23, 9:45�pm, learner <cnfengshu...@gmail.com> wrote: >> >> >> >> >> >> > Hi, >> >> > I wanted to run the following code to get >> >> > 1 >> > 2 >> > 3 >> > 4 >> > 5 >> > . >> > . >> > 10 >> >> > %macro test; >> > %do i = 1 %to 10; >> > %let num= i; >> > � � � � � put �&num ; >> > %end; >> > %mend test; >> > data _null_; >> > %test; >> > run; >> >> > Here is what i got from the log: >> >> > 2048 �%macro test; >> > 2049 �%do i = 1 %to 10; >> > 2050 �%let num= i; >> > 2051 � � � �put �&num ; >> > 2052 �%end; >> > 2053 �%mend test; >> > 2054 �data _null_; >> > 2055 �%test; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > MPRINT(TEST): � put i ; >> > 2056 �run; >> >> > NOTE: Variable i is uninitialized. >> > . >> > . >> > . >> > . >> > . >> > . >> > . >> > . >> > . >> > . >> >> > How could I define a macro variable using the value of other variable >> > in the data? >> >> > Thanks a lot! >> >> Thanks to Art for his reply with the following codes. >> >> %macro test; >> %do i = 1 %to 10; >>   %put  &i. ; >> %end; >> %mend test; >> data _null_; >> %test; >> run; >> >> Actually, i wanted to assign values to macro from data variable. I >> just found the call symput could do this.- Hide quoted text - >> >> - Show quoted text - > >Found this > >data team1; > input position : $8. player : $12.; > call symput(position,player); /*generate 3 macros, assigning >values of players to macros position*/ >datalines; >shortstp Ann >pitcher Tom >frstbase Bill >; >%put &shortstp &pitcher &frstbase;run; > > >Is there any other way to read data variable value into macro?