The DATASETS Procedure

INDEX CENTILES

Updates centiles information for indexed variables.

Restriction: Must be in a MODIFY RUN group

INDEX CENTILES index(s)
</ <REFRESH>
<UPDATECENTILES= ALWAYS|NEVER|integer>>;

Required Arguments

index(s): names one or more indexes.

Options

REFRESH

updates the centiles immediately, regardless of the value of UPDATECENTILES.

UPDATECENTILES=ALWAYS|NEVER|integer

specifies when the centiles are to be updated. It is not practical to update centiles after every data set update. Therefore, you can specify as the value of UPDATECENTILES the percent of the data values that can be changed before the centiles for the indexed variables are updated.

Valid values for UPDATECENTILES are

ALWAYS|0

Centiles are updated when the data set is closed if any changes have been made to the data set index.

NEVER|101

Centiles are not updated.

integer

The percent of values for the indexed variable that can be updated before the centiles are refreshed.

Alias:	UPDCEN
Default	5 (percent)

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