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    1: DIXC	;SFISC/GFT-DESCRIPTIVE STATS, CORRELATION MATRIX ;2/24/93  14:52 ;
    2: 	;;21.0;VA FileMan;;Dec 28, 1994
    3: 	;Per VHA Directive 10-93-142, this routine should not be modified.
    4: D	D DESC G DESCX
    5: C	D CORR G CORRX
    6: 	;
    7: SQR	S Y=0 Q:X'>0  S Y=1+X/2
    8: L	S T=Y,Y=X/T+T/2 G L:Y<T
    9: 	K T Q
   10: DLCOR	S DJ=IO(0),U="^",SZ=0
   11: 	F SZT=1:1 S:$D(^DOSV(0,DJ,"CP",SZT)) SZ=SZT Q:'$D(^DOSV(0,DJ,0,SZT,"S"))  S DN(SZT)=$E($P(^DOSV(0,IO(0),"F",SZT),U,3),1,8)
   12: 	S SZT=SZT-1 Q
   13: DESC	;CALCULATE THE DESCRIPTIVE STATISTICS.
   14: 	D DLCOR K DS F I=1:1:SZT I $D(^DOSV(0,DJ,0,I,"Q")) S X=^("Q")-((^("S")*^("S"))/^("N"))/(^("N")) D SQR S ^("D")=Y
   15: 	Q
   16: DESCX	;PRINT DESCRIPTIVE STATS
   17: 	K DHDR S DHDR="77CUST",DHDR(1)="DESCRIPTIVE STATISTICS" D DHDR^DIX G Q:POP,QUE:$D(IO("Q"))
   18: D1	W !!,?13,"N OF",?39,"STANDARD"
   19: 	W !,?13,"CASES",?25,"MEAN",?39,"DEVIATION",?54,"MINIMUM",?69,"MAXIMUM"
   20: 	F I=1:1:SZT D D10
   21: 	G KL
   22: D10	W !,DN(I),?10 I $D(^DOSV(0,DJ,0,I,"N")) W $J(^("N"),6) W:^("N") $J(^("S")/^("N"),15,4)
   23: 	F X="D","L","H" W $S($D(^(X)):$J(^(X),15,4),1:$J("",15))
   24: 	Q
   25: CORR	;CALCULATE THE CORRELATION MATRIX
   26: 	K ^UTILITY($J),ERR I $O(^DOSV(0,IO(0),1))'>0 W !!,"*****     AT LEAST TWO VARIABLES MUST BE DEFINED     *****" S ERR=1 Q
   27: 	D DLCOR ;F I=1:1:SZ I ^DOSV(0,IO(0),"BY",I,"H")=^("L") W $C(7),!,"CAN'T COMPUTE CORRELATION MATRIX--",DN(I+100)," IS SINGLE-VALUED" S ERR=1 G KL
   28: 	F I=2:1:SZ S N=^DOSV(0,DJ,0,I,"N"),S=^("S"),C=^DOSV(0,DJ,"CP",I,I) F J=1:1:I-1 I $D(^DOSV(0,DJ,"CP",I,J)) D C1
   29: 	G KL
   30: C1	S X=N*C-(S*S)*(N*^DOSV(0,DJ,"CP",J,J))-(^DOSV(0,DJ,0,J,"S")*^("S"))
   31: 	D SQR S (^UTILITY($J,J,I),^UTILITY($J,I,J))=(N*^DOSV(0,DJ,"CP",I,J))-(S*^DOSV(0,DJ,0,J,"S"))/Y
   32: 	Q
   33: CORRX	;OUTPUT THE CORRELATION MATRIX
   34: 	G:$D(ERR) KL K DHDR S DHDR="72TSU",DHDR(1)="CORRELATION MATRIX",DHDR(2)="" D DHDR^DIX G Q:POP
   35: 	F I=1:1:SZ S ^UTILITY($J,I,I)=1 I $D(^UTILITY($J,I,I)) W ?I*10-2,$J(DN(I),10)
   36: 	F I=1:1:SZ I $D(^UTILITY($J,I,I)) W !,DN(I) F J=1:1:I I $D(^UTILITY($J,I,J)) W ?J*10,$J(^UTILITY($J,I,J),8,4)
   37: 	W !!
   38: KL	W:$E(IOST)'="C"&($Y) @IOF I IO(0)'=IO D CLOSE^DIO4
   39: Q	U IO(0) K C,DHDR,I,II,J,JJ,N,POP,S,X,Y,Z,DJ,DN,SZ,SZT,DIFF
   40: 	Q
   41: QUE	;
   42: 	F I="DHDR*","^DOSV(0,$I,","SZT","DN*" S ZTSAVE(I)=""
   43: 	S ZTIO=ION_";"_IOST_";"_IOM_";"_IOSL,ZTRTN="DQ^DIXC"
   44: 	D ^%ZTLOAD G KL
   45: 	;
   46: DQ	S DJ=$I D DQ^DIX G D1