GEOMETRIC MEAN

GEOMETRIC MEAN (LET)

Let Subcommand

Compute the geometric mean for a variable.

The geometric mean is defined as:
\( \mbox{XGM} = (\prod_{i=1}^{n}{X_i})^{1/n} \)

LET <par> = GEOMETRIC MEAN <y1>
                        <SUBSET/EXCEPT/FOR qualification>
where <y1> is the response variable;
            <par> is a parameter where the computed geometric mean is stored;
and where the <SUBSET/EXCEPT/FOR qualification> is optional.

LET A = GEOMETRIC MEAN Y1
LET A = GEOMETRIC MEAN Y1 SUBSET TAG > 2

Dataplot statistics can be used in a number of commands. For details, enter
HELP STATISTICS

None

None

MEAN	= Compute the mean.
MEDIAN	= Compute the median.
GEOMETRIC STANDARD DEVIATION	= Compute the geometric standard deviation.
STATISTICS PLOT	= Generate a statistic versus subset plot.
BOOTSTRAP PLOT	= Generate a bootstrap plot.
TABULATE	= Perform a tabulation for a specified statistic.

Data Analysis

2000/01

LET Y1 = NORMAL RANDOM NUMBERS FOR I = 1 1 100
LET A1 = GEOMETRIC MEAN Y1