topic Re: How i can perform a figure for PCA in Statistical Procedures

How i can perform a figure for PCA

romeo012 — Sat, 22 Feb 2020 14:47:43 GMT

How i can perform PCA figure for this variables

i wright this syntaxe

input Acc$ BLOC$ r$ LT HP LoL LaL LoLLaL NbR NRA NJF NJM LF DFM DFS LDF NLF LP GP ECF LPL PFF NGF;
cards;
PROC PRINCOMP DATA= A OUT= B OUTSTAT= C N = 4 COV VARDEF = WEIGHT;
VAR LT HP LoL LaL LoLLaL NbR NRA NJF NJM LF DFM DFS LDF NLF LP GP ECF LPL PFF NGF;
run;
quit;

Thank you for your help.

Re: How i can perform a figure for PCA

PaigeMiller — Sat, 22 Feb 2020 19:33:29 GMT

More specific information about what you want is needed. "Figure" is relatively vague.

PROC PRINCOMP has a PLOTS= option that offers many different types of plots. See the documentation: https://documentation.sas.com/?docsetId=statug&docsetTarget=statug_princomp_syntax01.htm&docsetVersion=14.2&locale=en#statug.princomp.prinplotopt maybe one of the built in plots works for you

Re: How i can perform a figure for PCA

romeo012 — Sat, 22 Feb 2020 22:38:38 GMT

Thank you for responding me.

i need to perform a 2 dimension graphic representing the 2 principal component for individidual and for variables and the biplot graphic.

Re: How i can perform a figure for PCA

PaigeMiller — Sat, 22 Feb 2020 22:52:18 GMT

https://blogs.sas.com/content/iml/2019/11/06/what-are-biplots.html

https://blogs.sas.com/content/iml/2019/11/13/create-biplots-sas.html

Re: How i can perform a figure for PCA

Rick_SAS — Mon, 24 Feb 2020 13:39:16 GMT

I suspect you are looking for a "score plot" and a "loadings plots." See the article

"How to interpret graphs in a principal component analysis"

which discusses these plots and how to create them from the output of PROC PRINCOMP.

Re: How i can perform a figure for PCA

romeo012 — Mon, 24 Feb 2020 16:01:42 GMT

Thank you

Re: How i can perform a figure for PCA

romeo012 — Mon, 24 Feb 2020 16:11:59 GMT

thank you