m*i
发帖数: 8 | 1 My following sas script has problems but I don't how to solve it.
Thanks in advance if anyone could help or provide some ideas.
%let covariates=age gender center EV1;
/*deleting records with missing covariates---complete obs only*/
data temp1;
set temp0;
do h=1 to %numwords(&covariates)-1;
%let name=%scan(&covariates,&h);
if &name=. then delete;
end;
The sas log showsthe following information:
WARNING: Apparent symbolic reference H not resolved.
WARNING: Apparent symbolic reference H not |
d*******1
发帖数: 854 | 2 你这个datastep 和macro的loop 全搞混了.macro运用的最高境界就是"不用".
改如下:
%let covariates=age gender center EV1;
/*deleting records with missing covariates---complete obs only*/
data temp1;
set temp0;
if n (of &covariates)<4 then delete;
run;
【在 m*i 的大作中提到】
: My following sas script has problems but I don't how to solve it.
: Thanks in advance if anyone could help or provide some ideas.
: %let covariates=age gender center EV1;
: /*deleting records with missing covariates---complete obs only*/
: data temp1;
: set temp0;
: do h=1 to %numwords(&covariates)-1;
: %let name=%scan(&covariates,&h);
: if &name=. then delete;
: end;
|
m*i
发帖数: 8 | 3 I don't want to delete any obs with n(of &covariate)<4. My goal is to delete
the obs with any one of the 4 covariates is missing. I keep only complete
obs(without any missing for all 4 covariates).
Thank you very much.
【在 m*i 的大作中提到】
: My following sas script has problems but I don't how to solve it.
: Thanks in advance if anyone could help or provide some ideas.
: %let covariates=age gender center EV1;
: /*deleting records with missing covariates---complete obs only*/
: data temp1;
: set temp0;
: do h=1 to %numwords(&covariates)-1;
: %let name=%scan(&covariates,&h);
: if &name=. then delete;
: end;
|
