SPSS® 12.0 Command Syntax Reference

SQRT(arg) Square root. SQRT(SIBS) is 1.41 when SIBS equals 2.
Transformation Expressions 39
EXP(arg) Exponential. e is raised to the power of the argument. EXP(VARA) is 7.39
when VARA equals 2.
LG10(arg) Base 10 logarithm. LG10(VARB) is 0.48 when VARB equals 3.
LN(arg) Natural or Naperian logarithm (base e). LN(VARC) is 2.30 when VARC
equals 10.
LNGAMMA(arg) Logarithm (base e) of complete Gamma function.
ARSIN(arg) Arcsine. (Alias ASIN.) The result is given in radians. ARSIN(ANG) is 1.57
when ANG equals 1.
ARTAN(arg) Arctangent. (Alias ATAN.) The result is given in radians. ARTAN(ANG2) is
0.79 when ANG2 equals 1.
SIN(arg) Sine. The argument must be specified in radians. SIN(VARD) is 0.84 when
VARD equals 1.
COS(arg) Cosine. The argument must be specified in radians. COS(VARE) is 0.54 when
VARE equals 1.
Statistical Functions
• Each argument to a statistical function (expression, variable name, or constant) must be
separated by a comma.
• The .n suffix can be used with all statistical functions to specify the number of valid
arguments. For example, MEAN.2(A,B,C,D) returns the mean of the valid values for
variables A, B, C, and D only if at least two of the variables have valid values. The default
for n is 2 for SD, VARIANCE, and CFVAR, and 1 for other statistical functions.
• The keyword TO can be used to refer to a set of variables in the argument list.
SUM(arg list) Sum of the nonmissing values across the argument list.
MEAN(arg list) Mean of the nonmissing values across the argument list.
SD(arg list) Standard deviation of the nonmissing values across the argument list.
VARIANCE(arg list) Variance of the nonmissing values across the argument list.
CFVAR(arg list) Coefficient of variation of the nonmissing values across the argument
list. The coefficient of variation is the standard deviation divided by
the mean.
MIN(arg list) Minimum nonmissing value across the argument list.
MAX(arg list) Maximum nonmissing value across the argument list.