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Last change
on this file since 1000 was 613, checked in by George Lilly, 15 years ago |
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initial load of WorldVistAEHR
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File size:
822 bytes
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| [613] | 1 | RORXU004 ;HCIOFO/SG - REPORT UTILITIES (STATISTICS) ; 9/23/03 10:51am
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| 2 | ;;1.5;CLINICAL CASE REGISTRIES;;Feb 17, 2006
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| 3 | ;
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| 4 | Q
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| 5 | ;
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| 6 | ;***** CALCULATES THE MEDIAN VALUE OF THE CROSS-REFERENCE
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| 7 | ;
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| 8 | ; XREFNODE Root node of the old-style cross-reference
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| 9 | ; NUM Total number of elements in the array
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| 10 | ;
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| 11 | ; Return Values:
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| 12 | ; "" Error (or an empty array)
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| 13 | ; '="" Median Value
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| 14 | ;
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| 15 | XREFMDNV(XREFNODE,NUM) ;
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| 16 | Q:NUM'>0 ""
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| 17 | N FLT,FLTL,I,MV,N,PI,VPOS
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| 18 | S FLTL=$L(XREFNODE)-1,FLT=$E(XREFNODE,1,FLTL)
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| 19 | S N=(NUM+1)\2,VPOS=$QL(XREFNODE)+1
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| 20 | ;--- Find the median value
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| 21 | S PI=XREFNODE
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| 22 | F I=1:1:N S PI=$Q(@PI) Q:$E(PI,1,FLTL)'=FLT
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| 23 | Q:$E(PI,1,FLTL)'=FLT ""
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| 24 | ;--- Calculate median value if NUM is even
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| 25 | S MV=$QS(PI,VPOS)
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| 26 | I '(NUM#2) D Q:I="" "" S MV=(MV+I)/2
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| 27 | . S PI=$Q(@PI),I=$S($E(PI,1,FLTL)=FLT:$QS(PI,VPOS),1:"")
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| 28 | Q MV
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