[转载]SAS Functions and CALL Routines by Category

(2013-03-07 09:37:40)

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原文地址：SAS Functions and CALL Routines by Category作者：webgu

有的时候，会感叹，想实现某个功能，组合了一堆函数，写了一堆代码，最后才发现SAS已经提供了一个完全可以实现这个功能的函数。这个时候，我才真正体会到，系统的搂一下SAS的函数，还是很必要的。庆幸的是，SAS公司已经总结了一个很好的HTML版。以下是概览：

SAS Functions and CALL Routines by Category

Here are the categories for SAS functions and CALL routines:

Arithmetic	returns the result of a division that handles special missing values for ODS output.
Array	returns information about arrays.
Bitwise Logical Operations	returns the bitwise logical result for an argument.
Character	returns information based on character data.
Character String Matching	returns information from Perl regular expressions.
Combinatorial	generates combinations and permutations.
Date and Time	returns date and time values, including time intervals.
Descriptive Statistics	returns statistical values, such as mean, median, and standard deviation.
Distance	returns the geodetic distance.
External Files	returns information that is associated with external files.
External Routines	returns a character or numeric value, or calls a routine without any return code.
Financial	calculates financial values such as interest, periodic payments, depreciation, and prices for European options on stocks.
Hyperbolic	performs hyperbolic calculations such as sine, cosine, and tangent.
Macro	assigns a value to a macro variable, returns the value of a macro variable, determines whether a macro variable is global or local in scope, and identifies whether a macro variable exists.
Mathematical	performs mathematical calculations such as factorials, absolute value, fuzzy comparisons, and logarithms.
Numeric	returns a numeric value based on whether an expression is true, false, or missing, or determines whether a software image exists in the installed version of SAS.
Probability	returns probability calculations, such as from a chi-square or Poisson distribution.
Quantile	returns a quantile from specific distributions.
Random Number	returns random variates from specific distributions.
SAS File I/O	returns information about SAS files.
Search	searches for character or numeric values.
Sort	sorts the values of character or numeric arguments.
Special	returns and stores memory addresses, writes a value directly into memory, suspends execution of a program, submits an operating-environment command for execution, returns the value of a SAS system or graphics option, specifies formats and informats at run time, returns the system return code, returns the UUID, determines whether a product is licensed, as well as returns other information about SAS processing.
State and ZIP Code	returns ZIP codes, FIPS codes, state and city names, postal codes, and the geodetic distance between ZIP codes.
Trigonometric	returns trigonometric values such as sine, cosine, and tangent.
Truncation	truncates numeric values and returns numeric values, often using fuzzing or zero fuzzing.
Variable Control	assigns variable labels, links SAS data set variables to DATA step or macro variables, and assigns variable names.
Variable Information	returns a name, type, length, informat name, label, and other variable information.
Web Service	calls a Web service or a SAS registered Web service.
Web Tools	encodes and decodes a string of data.

具体的函数，可以在这量查看：

SAS Functions and CALL Routines by Category

http://support.sas.com/documentation/cdl/en/lefunctionsref/63354/HTML/default/viewer.htm#p0w6napahk6x0an0z2dzozh2ouzm.htm

另推荐SASList网的sxlion大侠的总结博文：

最全的SAS9.2函数列表一

最全的SAS9.2函数列表二

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