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- 注册时间
- 2009-12-3
- 最后登录
- 2024-11-24
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【PercentileArray】
- inputs:
- PctRank( numericsimple ),
- PriceValueArray[MaxSize]( numericarrayref ),
- Size( numericsimple ) ;
- variables:
- var0( 0 ),
- var1( 0 ),
- var2( 0 ),
- var3( 0 ) ;
- Condition1 = PctRank >= 0 and PctRank <= 1 ;
- condition1 = Condition1 and Size > 1 ;
- if condition1 then
- begin
-
- Value1 = SortArray( PriceValueArray, Size, -1 ) ;
-
- var0 = 1 / ( Size - 1 ) ;
-
-
- var1 = IntPortion( PctRank / var0 ) + 1 ;
- var2 = var1 + 1 ;
-
- var3 = ( PctRank - ( ( var1 - 1 ) * var0 ) ) / var0 ;
- PercentileArray = ( PriceValueArray[var1] ) + ( var3 *
- ( PriceValueArray[var2] - PriceValueArray[var1] ) ) ;
- end
- else
- begin
- condition1 = Condition1 and Size = 1 ;
- if condition1 then
- PercentileArray = PriceValueArray[1]
- else
- PercentileArray = -1 ;
- end;
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