常用文档SAS函数汇总.doc

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1、CategoryFunctionsandCALLRoutinesDescriptionArithmeticDIVIDEFunctionReturnstheresultofadivisionthathandlesspecialmissingvaluesforODSoutput.ArrayDIMFunctionReturnsthenumberofelementsinanarray.HBOUNDFunctionReturnstheupperboundofanarray.LBOUNDFunctionReturnsthelowerboundofanarray.Bitwis

2、eLogicalOperationsBANDFunctionReturnsthebitwiselogicalANDoftwoarguments.BLSHIFTFunctionReturnsthebitwiselogicalleftshiftoftwoarguments.BNOTFunctionReturnsthebitwiselogicalNOTofanargument.BORFunctionReturnsthebitwiselogicalORoftwoarguments.BRSHIFTFunctionReturnsthebitwiselogicalrights

3、hiftoftwoarguments.BXORFunctionReturnsthebitwiselogicalEXCLUSIVEORoftwoarguments.CharacterStringMatchingCALLPRXCHANGERoutinePerformsapattern-matchingreplacement.CALLPRXDEBUGRoutineEnablesPerlregularexpressionsinaDATAsteptosenddebuggingoutputtotheSASlog.CALLPRXFREERoutineFreesmemoryth

4、atwasallocatedforaPerlregularexpression.CALLPRXNEXTRoutineReturnsthepositionandlengthofasubstringthatmatchesapattern,anditeratesovermultiplematcheswithinonestring.CALLPRXPOSNRoutineReturnsthestartpositionandlengthforacapturebuffer.CALLPRXSUBSTRRoutineReturnsthepositionandlengthofasub

5、stringthatmatchesapattern.PRXCHANGEFunctionPerformsapattern-matchingreplacement.PRXMATCHFunctionSearchesforapatternmatchandreturnsthepositionatwhichthepatternisfound.PRXPARENFunctionReturnsthelastbracketmatchforwhichthereisamatchinapattern.PRXPARSEFunctionCompilesaPerlregularexpressi

6、on(PRX)thatcanbeusedforpatternmatchingofacharactervalue.PRXPOSNFunctionReturnsacharacterstringthatcontainsthevalueforacapturebuffer.CharacterANYALNUMFunctionSearchesacharacterstringforanalphanumericcharacter,andreturnsthefirstpositionatwhichthecharacterisfound.ANYALPHAFunctionSearche

7、sacharacterstringforanalphabeticcharacter,andreturnsthefirstpositionatwhichthecharacterisfound.ANYCNTRLFunctionSearchesacharacterstringforacontrolcharacter,andreturnsthefirstpositionatwhichthatcharacterisfound.ANYDIGITFunctionSearchesacharacterstringforadigit,andreturnsthefirstpositi

8、onatwhichthe