label numerical matrix' values

[acordes]

I am sure that I can avoid the Do loop in this code. It works but I want to "translate" the numerical matrix to a categorical one.

Is there a way to map the numerical matrix RES_T  to its char sibling RES_T_CH by using the DESC matrix?

PROC IML;

X=1 : 8;
Y=1:10;

RES=T(Y)*X;

LABLX=CHAR(X);
LABLY=CHAR(Y);

R=PALETTE("BLUES",4);

RES2=(MOD(RES,2)=0);
RES4=(MOD(RES,4)=0);
RES8=(MOD(RES,8)=0);

RES_T=RES2+RES4+RES8;

DESC={"no divideix ni per 2, ni 4, ni 8" "divideix per 2" "divideix per 4" "divideix per 8"};
/*print desc;*/

RES_T_CH=J(10,8, "                               ");


DO I=1 TO NROW(RES)*NCOL(RES);
RES_T_CH[I]=DESC[RES_T[I]+1];
END;

CALL HEATMAPDISC(RES_T_ch, R) TITLE="tasca multiplicar per 2,4 i 8" DISPLAYOUTLINES=1 SHOWLEGEND=1;

[Ksharp · Accepted solution]

Yes. No need loop, just directly refer to RES_T as an index matrix.

ods html;


PROC IML;

X=1 : 8;
Y=1:10;

RES=T(Y)*X;

LABLX=CHAR(X);
LABLY=CHAR(Y);

*R=PALETTE("BLUES",4);

RES2=(MOD(RES,2)=0);
RES4=(MOD(RES,4)=0);
RES8=(MOD(RES,8)=0);

RES_T=RES2+RES4+RES8;

DESC={"no divideix ni per 2, ni 4, ni 8" "divideix per 2" "divideix per 4" "divideix per 8"};
/*print desc;*/


RES_T_CH=SHAPE(DESC[RES_T+1],NROW(RES_T));

print res_t,res_t_ch;
quit;