topic Re: PROC CALIS questions,how to deal with it. in Statistical Procedures

PROC CALIS questions,how to deal with it.

Phoenix_LJ — Sun, 08 May 2022 09:55:20 GMT

I use proc calis create a SEM, I run the program as below but proc calis couldn't function.

ERROR: Variable V1 in the VARIANCE or STD statement is not independent.
ERROR: Variable V2 in the VARIANCE or STD statement is not independent.

how to deal this problems? thank ahead!

Re: PROC CALIS questions,how to deal with it.

sbxkoenk — Sun, 08 May 2022 13:32:57 GMT

Hello,

I do not download attachments if not absolutely needed (and I am not the only one with that habit).

Can you post your PROC CALIS code in a reply?
When editing your reply, click on the running-man-icon" in the toolbar with tip-text "Insert SAS Code". A pop-up window appears wherein you can paste your SAS code. That way, structure and formatting of the SAS-program is preserved.

Are you dealing with the LINEQS Model or another one?

@jiltao : maybe you can answer? I am not very familiar with PROC CALIS and SEM.

Thanks,

Koen

Re: The code attached

Phoenix_LJ — Mon, 09 May 2022 04:03:43 GMT

proc calis data=HBM_CSSF_ALL1 covariance modification MAXITER=50000000;
lineqs
V1 = LV1F1*F1 + E1,
V2 = LV2F1*F1 + E2,
V5 = LV5F1*F1 + E5,
V3 = LV3F2*F2 + E3,
V4 = LV4F2*F2 + E4,
V6 = LV6F3*F3 + E6,
V7 = LV7F3*F3 + E7,
V10 = LV10F4*F4 + E10,
V11 = LV11F4*F4 + E11,
V12 = LV12F4*F4 + E12,
V13 = LV13F4*F4 + E13,
V19 = LV19F6*F6 + E19,
V21 = LV21F6*F6 + E21,
V25 = LV25F6*F6 + E25,
V26 = 1*F7 + E26
;
variance
V1-V7=VARV1-VARV7,
V10-V13=VAR10-VAR13,
V19=VARV19,
V21=VARV21,
V25=VARV25,
V26=0,
F1=1,F2=1,F3=1,F4=1,F6=1,F7=1;
cov
F1 F2 = CF1F2,
F1 F3 = CF1F3,
F1 F4 = CF1F4,
F1 F6 = CF1F6,
F1 F7 = CF1F7,
F2 F3 = CF2F3,
F2 F4 = CF2F4,
F2 F6 = CF2F6,
F2 F7 = CF2F7,
F3 F4 = CF3F4,
F3 F6 = CF3F6,
F3 F7 = CF3F7,
F4 F6 = CF4F6,
F4 F7 = CF4F7,
F6 F7 = CF6F7,
V1 V2 = CV1V2;
var v1-v7 v10-v13 v19 v21 v25 v26;
run;

Re: The code attached

jiltao — Tue, 10 May 2022 01:39:58 GMT

As stated in the documentation here --

SAS Help Center: VARIANCE Statement

you cannot list any endogenous variables in the var-list list of the VARIANCE statement.

V's are your endogenous variables and you should not specify them in the VARIANCE statement.

Do you mean to specify the variance for the E's? You might want to replace the V's with the E's in your VARIANCE and COV statements.

Jill