MOS Subcommand (CSPLAN command)

The MOS subcommand specifies the measure of size for population units in a PPS design. Specify a variable that contains the sizes or request that sizes be determined when CSSELECT scans the sample frame.

VARIABLE. Specify a variable containing the sizes.

SOURCE=FROMDATA. The CSSELECT procedure counts the number of cases that belong to each cluster to determine the MOS. SOURCE=FROMDATA can be used only if a CLUSTER variable is defined. Otherwise, an error is generated.

• The MOS subcommand is required for PPS designs. Otherwise, it is ignored with a warning.