p*****o
发帖数: 543 | 1 比如：
PROC REG;
IF A=1 THEN MODEL C=B;
IF A=0 THEN MODEL C=B D;
RUN;
试了一下，好像不可以啊，那有没有办法可以解决这个问题么？
非常感谢 |
s**c
发帖数: 1247 | 2 用macro吧
【在 p*****o 的大作中提到】
: 比如：
: PROC REG;
: IF A=1 THEN MODEL C=B;
: IF A=0 THEN MODEL C=B D;
: RUN;
: 试了一下，好像不可以啊，那有没有办法可以解决这个问题么？
: 非常感谢
|
p*****o
发帖数: 543 | 3 忘记说了，我这个PROC REG其实是在一个大的MACRO中的。是不是应该在PROC外围用%DO
%WHILE来解决啊 |
a********l
发帖数: 40 | 4 why not use proc glm
class |
A*******s
发帖数: 3942 | 5 这个A是variable么？
如果是的话，创建一个E,和A刚好相反，E=1 when A=0, E=0 when A=1
model C=B E*D
【在 p*****o 的大作中提到】
: 比如：
: PROC REG;
: IF A=1 THEN MODEL C=B;
: IF A=0 THEN MODEL C=B D;
: RUN;
: 试了一下，好像不可以啊，那有没有办法可以解决这个问题么？
: 非常感谢
|
D******n
发帖数: 2836 | 6 what is A? it doesnt look like a macro variable, then the question is what d
o u exactly want to do?
【在 p*****o 的大作中提到】
: 比如：
: PROC REG;
: IF A=1 THEN MODEL C=B;
: IF A=0 THEN MODEL C=B D;
: RUN;
: 试了一下，好像不可以啊，那有没有办法可以解决这个问题么？
: 非常感谢
|
p*****o
发帖数: 543 | 7 A is a macro variable....I just wanna put a indicator as A. Since we are not
sure whether we are going to use the first model or the second one. And I
wanna make it flexible in future by adding A as a macro variable.
So once I put A = 1 in future, it will use the 1st model and if I put A=0,
it will use the 2nd model...
d
【在 D******n 的大作中提到】
: what is A? it doesnt look like a macro variable, then the question is what d
: o u exactly want to do?
|
p*****o
发帖数: 543 | 8 btw, what i want to know is that whether it is possible to use if statement
in Proc Reg.
just by saying the problem itself, i think there are a lot of substitute
ways to do it. |
s*r
发帖数: 2757 | 9 if might be used for data subsetting |
s*******f
发帖数: 148 | 10 I think IF,THEN statement is only valid in DATA step.
It won't take effect in any PROC steps.
You may refer to SAS help document for confirmation.
statement
【在 p*****o 的大作中提到】
: btw, what i want to know is that whether it is possible to use if statement
: in Proc Reg.
: just by saying the problem itself, i think there are a lot of substitute
: ways to do it.
|
|
|
s*r
发帖数: 2757 | 11 ok only where can be used
【在 s*r 的大作中提到】
: if might be used for data subsetting
|
o****o
发帖数: 8077 | 12 'if then' programming statements are valid in many PROCs, such as PHREG,
NLMIXED, NLIN, to name a few
【在 s*******f 的大作中提到】
: I think IF,THEN statement is only valid in DATA step.
: It won't take effect in any PROC steps.
: You may refer to SAS help document for confirmation.
:
: statement
|
s*******f
发帖数: 148 | 13 oh really? Then sorry to louzhu for the wrong information@@
coz in the help document of IF-THEN/ELSE statement, it says "Valid: in DATA
step", so I thought it was only valid in DATA. Maybe I got it wrong@@
Anyway, thanks a lot for pointing out:)
【在 o****o 的大作中提到】
: 'if then' programming statements are valid in many PROCs, such as PHREG,
: NLMIXED, NLIN, to name a few
|
o****o
发帖数: 8077 | 14 any PROC that supports user defined likelihood function or there is a page
of 'PROGRAMMING STATEMENT' in Detail section would support complex logic
programming
DATA
【在 s*******f 的大作中提到】
: oh really? Then sorry to louzhu for the wrong information@@
: coz in the help document of IF-THEN/ELSE statement, it says "Valid: in DATA
: step", so I thought it was only valid in DATA. Maybe I got it wrong@@
: Anyway, thanks a lot for pointing out:)
|
s*r
发帖数: 2757 | |
p*****o
发帖数: 543 | 16 thank you guys for all the shared information |
