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SAS FUNCTIONS

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SAS FUNCTIONS


Arithmetic Functions

ABS(argument)

returns absolute value

DIM<n>(array-name)

returns the number of elements in a one-dimensional array or the number of elements in a specified dimension of a multidimensional array.

n specifies the dimension, in a multidimensional array, for which you want to know the the number of elements.

DIM(array-name,bound-n)

returns the number of elements in a one-dimensional array or the number of elements in the specified dimension of a multidimensional array

bound-n specifies the dimension in a multidimensional array, for which you want to know the number of elements.

HBOUND<n>(array-name)

returns the upper bound of an array

HBOUND(array-name,bound-n)

returns the upper bound of an array

LBOUND<n>(array-name)

returns the lower bound of an array

LBOUND(array-name,bound-n)

returns the lower bound of an array

MAX(argument,argument, …)

returns the largest value of the numeric arguments

MIN(argument,argument, …)

returns the smallest value of the numeric arguments

MOD(argument-1, argument-2)

returns the remainder

SIGN(argument)

returns the sign of a value or 0

SQRT(argument)

returns the square root

Character Functions

BYTE(n)

returns one character in the ASCII or EBCDIC collating sequence where nis an integer representing a specific ASCII or EBCDIC character

COLLATE(start-position<,end-position>) | (start-position<,,length>)

returns an ASCII or EBCDIC collating sequence character string

COMPBL(source)

removes multiple blanks between words in a character string

COMPRESS(source<,characters-to-remove>)

removes specific characters from a character string

DEQUOTE(argument)

removes quotation marks from a character value

INDEX(source,excerpt)

searches the source for the character string specified by the excerpt

INDEXC(source,excerpt-1<, … excerpt-n>)

searches the source for any character present in the excerpt

INDEXW(source,excerpt)

searches the source for a specified pattern as a word

LEFT(argument)

left-aligns a SAS character string

LENGTH(argument)

returns the length of an argument

LOWCASE(argument)

converts all letters in an argument to lowercase

QUOTE(argument)

adds double quotation marks to a character value

RANK(x)

returns the position of a character in the ASCII or EBCDIC collating sequence

REPEAT(argument,n)

repeats a character expression

REVERSE(argument)

reverses a character expression

RIGHT(argument)

right-aligns a character expression

SCAN(argument,n<,delimiters>)

returns a given word from a character expression

SOUNDEX(argument)

encodes a string to facilitate searching

SUBSTR(argument,position<,n>)=characters-to-replace

replaces character value contents

var=SUBSTR(argument,position<,n>)

extracts a substring from an argument. (var is any valid SAS variable name.)

TRANSLATE(source,to-1,from-1<,…to-n,from-n>)

replaces specific characters in a character expression

TRANWRD(source,target,replacement)

replaces or removes all occurrences of a word in a character string

TRIM(argument)

removes trailing blanks from character expression and returns one blank if the expression is missing

TRIMN(argument)

removes trailing blanks from character expressions and returns a null string if the expression is missing

UPCASE(argument)

converts all letters in an argument to uppercase

VERIFY(source,excerpt-1<,…excerpt-n)

returns the position of the first character unique to an expression

Date and Time Functions

DATDIF(sdate,edate,basis)

returns the number of days between two dates

DATE()

returns the current date as a SAS date value

DATEJUL(julian-date)

converts a Julian date to a SAS date value

DATEPART(datetime)

extracts the date from a SAS datetime value

DATETIME()

returns the current date and time of day

DAY(date)

returns the day of the month from a SAS date value

DHMS(date,hour,minute,second)

returns a SAS datetime value from date, hour, minute, and second

HMS(hour,minute,second)

returns a SAS time value from hour, minute, and second

HOUR(<time | datetime>)

returns the hour from a SAS time or datetime value

INTCK(‘interval’,from,to)

returns the number of time intervals in a given time span

INTNX(‘interval’,start-from,increment<,’alignment’>)

advances a date, time, or datetime value by a given interval, and returns a date, time, or datetime value

JULDATE(date)

returns the Julian date from a SAS date value

MDY(month,day,year)

returns a SAS date value from month, day, and year values

MINUTE(time | datetime)

returns the minute from a SAS time or datetime value

MONTH(date)

returns the month from a SAS date value

QTR(date)

returns the quarter of the year from a SAS date value

SECOND(time | datetime)

returns the second from a SAS time or datetime value

TIME()

returns the current time of day

TIMEPART(datetime)

extracts a time value from a SAS datetime value

TODAY()

returns the current date as a SAS date value

WEEKDAY(date)

returns the day of the week from a SAS date value

YEAR(date)

returns the year from a SAS date value

YRDIF(sdate,edate,basis)

returns the difference in years between two dates

YYQ(year,quarter)

returns a SAS date value from the year and quarter

Mathematical Functions

AIRY(x)

returns the value of the AIRY function

DAIRY(x)

returns the derivative of the AIRY function

DIGAMMA(argument)

returns the value of the DIGAMMA function

ERF(argument)

returns the value of the (normal) error function

ERFC(argument)

returns the value of the (normal) error function

EXP(argument)

returns the value of the exponential function

GAMMA(argument)

returns the value of the GAMMA function

IBESSEL(nu,x,kode)

returns the value of the modified bessel function

JBESSEL(nu,x)

returns the value of the bessel function

LGAMMA(argument)

returns the natural logarithm of the GAMMA function

LOG(argument)

returns the natural (base e) logarithm

LOG2(argument)

returns the logarithm to the base 2

LOG10(argument)

returns the logarithm to the base 10

TRIGAMMA(argument)

returns the value of the TRIGAMMA function

Noncentrality Functions

CNONCT(x,df,prob)

returns the noncentrality parameter from a chi-squared distribution

FNONCT(x,ndf,ddf,prob)

returns the value of the noncentrality parameter of an F distribution

TNONCT(x,df,prob)

returns the value of the noncentrality parameter from the student’s t distribution

Probability and Density Functions

CDF(‘dist’,quantile,parm-1,…,parm-k)

computes cumulative distribution functions

LOGPDF|LOGPMF(‘dist’,quantile,parm-1,…,parm-k)

computes the logarithm of a probability density (mass) function. The two functions are identical.

LOGSDF(‘dist’,quantile,parm-1,…,parm-k)

computes the logarithm of a survival function

PDF|PMF(‘dist’,quantile,parm-1,…,parm-k)

computes probability density (mass) functions

POISSON(m,n)

returns the probability from a POISSON distribution

PROBBETA(x,a,b)

returns the probability from a beta distribution

PROBBNML(p,n,m)

returns the probability from a binomial distribution

PROBCHI(x,df<,nc>)

returns the probability from a chi-squared distribution

PROBF(x,ndf,ddf<,nc>)

returns the probability from an F distribution

PROBGAM(x,a)

returns the probability from a gamma distribution

PROBHYPR(N,K,n,x<,r>)

returns the probability from a hypergeometric distribution

PROBMC

probabilities and critical values (quantiles) from various distributions for multiple comparisons of the means of several groups.

PROBNEGB(p,n,m)

returns the probability from a negative binomial distribution

PROBBNRM(x,y,r)

standardized bivariate normal distribution

PROBNORM(x)

returns the probability from the standard normal distribution

PROBT(x,df<,nc>)

returns the probability from a Student’s t distribution

SDF(‘dist’,quantile,parm-1,…,parm-k)

computes a survival function

Quantile Functions

BETAINV(p,a,b)

returns a quantile from the beta distribution

CINV(p,df<,nc>)

returns a quantile from the chi-squared distribution

FINV(p,ndf,ddf<,nc>)

returns a quantile from the F distribution

GAMINV(p,a)

returns a quantile from the gamma distribution

PROBIT(p)

returns a quantile from the standard normal distribution

TINV(p,df<,nc>)

returns a quantile from the t distribution

Sample Statistics Functions

CSS(argument,argument,…)

returns the corrected sum of squares

CV(argument,argument,…)

returns the coefficient of variation

KURTOSIS(argument,argument,…)

returns the kurtosis (or 4th moment)

MAX(argument,argument, …)

returns the largest value

MIN(argument,argument, …)

returns the smallest value

MEAN(argument,argument, …)

returns the arithmetic mean (average)

MISSING(numeric-expression | character-expression)

returns a numeric result that indicates whether the argument contains a missing value

N(argument,argument, ….)

returns the number of nonmissing values

NMISS(argument,argument, …)

returns the number of missing values

ORDINAL(count,argument,argument,…)

returns the largest value of a part of a list

RANGE(argument,argument,…)

returns the range of values

SKEWNESS(argument,argument,argument,…)

returns the skewness

STD(argument,argument,…)

returns the standard deviation

STDERR(argument,argument,…)

returns the standard error of the mean

SUM(argument,argument,…)

returns the sum

USS(argument,argument,…)

returns the uncorrected sum of squares

VAR(argument,argument,…)

returns the variance

State and ZIP Code Functions

FIPNAME(expression)

converts FIPS codes to uppercase state names

FIPNAMEL(expression)

converts FIPS codes to mixed case state names

FIPSTATE(expression)

converts FIPS codes to two-character postal codes

STFIPS(postal-code)

converts state postal codes to FIPS state codes

STNAME(postal-code)

converts state postal codes to uppercase state names

Tip:

For Version 6, the maximum length of the value that is returned is 200 characters. For Version 7 and beyond, the maximum length is 20 characters.

STNAMEL(postal-code)

converts state postal codes to mixed case state names

Tip:

For Version 6, the maximum length of the value that is returned is 200 characters. For Version 7 and beyond, the maximum length is 20 characters.

ZIPFIPS(zip-code)

converts ZIP codes to FIPS state codes

ZIPNAME(zip-code)

converts ZIP codes to uppercase state names

ZIPNAMEL(zip-code)

converts ZIP codes to mixed case state names

ZIPSTATE(zip-code)

converts ZIP codes to state postal codes

Trigonometric and Hyperbolic Functions

ARCOS(argument)

returns the arccosine

ARSIN(argument)

returns the arcsine

ATAN(argument)

returns the arctangent

COS(argument)

returns the cosine

COSH(argument)

returns the hyperbolic cosine

SIN(argument)

returns the sine

SINH(argument)

returns the hyperbolic sine

TAN(argument)

returns the tangent

TANH(argument)

returns the hyperbolic tangent

Truncation Functions

CEIL(argument)

returns the smallest integer that is greater than or equal to the argument

FLOOR(argument)

returns the largest integer that is less than or equal to the argument

FUZZ(argument)

returns the nearest integer if the argument is within 1E-12

INT(argument)

returns the integer value

ROUND(argument,round-off-unit)

rounds to the nearest round-off unit

TRUNC(number, length)

truncates a numeric value to a specified length

Variable Information Functions

GETVARC(data-set-id,var-num)

returns the value of a SAS data set character variable

GETVARN(data-set-id,var-num)

returns the value of a SAS data set numeric variable

VARFMT(data-set-id,var-num)

returns the format assigned to a SAS data set variable

VARINFMT(data-set-id,var-num)

returns the informat assigned to a SAS data set variable

VARLABEL(data-set-id,var-num)

returns the label assigned to a SAS data set variable

VARLEN(data-set-id,var-num)

returns the length of a SAS data set variable

VARNAME(data-set-id,var-num)

returns the name of a SAS data set variable

VARNUM(data-set-id,var-name)

returns the number of a SAS data set variable’s position in a SAS data set

VARRAY(name)

returns a value that indicates whether the specified name is an array

VARRAYX(expression)

returns a value that indicates whether the value of the specified argument is an array

VARTYPE(data-set-id,var-num)

returns the data type of a SAS data set variable

VFORMAT(var)

returns the format associated with the given variable

VFORMATD(var)

returns the format decimal value associated with the given variable

VFORMATDX(expression)

returns the format decimal value associated with the value of the specified argument

VFORMATN(var)

returns the format name associated with the given variable

VFORMATNX(expression)

returns the format name associated with the value of the specified argument

VFORMATW(var)

returns the format width associated with the given variable

VFORMATWX(expression)

returns the format width associated with the value of the specified argument

VFORMATX(expression)

returns the format associated with the value of the specified argument

VINARRAY(var)

returns a value that indicates whether the given variable is a member of an array

VINARRAYX(expression)

returns a value that indicates whether the value of the specified argument is a member of an array

VINFORMAT(var)

returns the informat associated with the given variable

VINFORMATD(var)

returns the informat decimal value associated with the given variable

VINFORMATDX(expression)

returns the informat decimal value associated with the value of the specified argument

VINFORMATN(var)

returns the informat name associated with the given variable

VINFORMATNX(expression)

returns the informat name associated with the value of the specified argument

VINFORMATW(var)

returns the informat width associated with the given variable

VINFORMATWX(expression)

returns the informat width associated with the value of the specified argument

VINFORMATX(expression)

returns the informat associated with the value of the specified argument

VLABEL(var)

returns the label associated with the given variable

VLABELX(expression)

returns the variable label for the value of a specified argument

VLENGTH(var)

returns the compile-time (allocated) size of the given variable

VLENGTHX(expression)

returns the compile-time (allocated) size for the value of the specified argument

VNAME(var)

returns the name of the given variable

VNAMEX(expression)

validates the value of the specified argument as a variable name

VTYPE(var)

returns the type (character or numeric) of the given variable

VTYPEX(expression)

returns the type (character or numeric) for the value of the specified argument

 

Regards,

SAS INDIA

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