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Naheed
Calcite | Level 5

Hello,

I am conducting principal component analysis using SAS University and I am noticing that in my factor structure output the variable name is repeating twice (screen shot attached). When I ran the PCA using a smaller sample (N=20) I did not see the variable repeated in the output, but I am seeing it with a larger sample (N=347). Is it normal to see the variable repeated twice? If it is normal - will this affect my results? If it is not normal, can anyone recommend how to resolve this issue? Below is the code that I used. 

 

Thanks,

Naheed

 

PROC FACTOR DATA=combined2
SIMPLE
METHOD=PRIN
PRIORS=ONE
MINEIGEN=1
SCREE
ROTATE=Varimax;
VAR Q17_1 Q17_2 Q17_3 Q17_4 Q17_N5 Q17_6 Q17_7 Q17_N8 Q17_9
Q17_10 Q17_11 Q17_12 Q17_13 Q17_14 Q17_N15 Q17_16 Q17_17 Q17_18 Q17_19;
run;

1 ACCEPTED SOLUTION

Accepted Solutions
PGStats
Opal | Level 21

The first column is the variable name, tyhe second is the variable label (= name if undefined)

PG

View solution in original post

4 REPLIES 4
PaigeMiller
Diamond | Level 26

Many of us cannot or will not open/download Microsoft Office documents because they are a security threat.

 

Copy the output as text and paste it into the window that appear when you click on the {i} icon. Do not share the output any other way.

--
Paige Miller
PGStats
Opal | Level 21

The first column is the variable name, tyhe second is the variable label (= name if undefined)

PG
Naheed
Calcite | Level 5

Thanks for the tip. Here's the output:

 

Factor Pattern

 

Factor1

Factor2

Factor3

Factor4

Q17_1

Q17_1

0.67294

0.41280

-0.15852

-0.01036

Q17_2

Q17_2

0.48358

0.68248

0.08352

0.25726

Q17_3

Q17_3

0.54983

0.57711

0.11512

0.28107

Q17_4

Q17_4

0.44381

0.53358

0.24719

0.13010

Q17_N5

 

0.41870

-0.36661

0.55073

-0.14263

Q17_6

Q17_6

0.60053

0.11641

-0.17944

-0.17651

Q17_7

Q17_7

0.73825

-0.05641

0.06892

-0.27410

Q17_N8

 

0.56599

-0.26417

0.51468

0.07845

Q17_9

Q17_9

0.81419

-0.05927

0.07920

-0.11640

Q17_10

Q17_10

0.70069

-0.00277

-0.04340

-0.37276

Q17_11

Q17_11

0.76431

0.06739

-0.01304

-0.32130

Q17_12

Q17_12

0.65156

0.05227

-0.14024

0.07191

Q17_13

Q17_13

0.53118

-0.35661

-0.29325

-0.08524

Q17_14

Q17_14

0.60679

0.06842

-0.40916

-0.23758

Q17_N15

 

0.50536

-0.00858

0.31649

-0.10772

Q17_16

Q17_16

0.32222

-0.31449

0.20480

0.17755

Q17_17

Q17_17

0.62299

-0.36914

-0.28542

0.38655

Q17_18

Q17_18

0.63534

-0.30515

-0.08891

0.43425

Reeza
Super User
I don't see anything repeated, what are you referring to?

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