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twang (version 0.6-1)

check.err: Reports on errors and warnings

Description

Reports on errors and warnings encountered while running ps and desc.wts. This function is not intended for the user to call directly

Usage

check.err(cov.table, stage, alerts.stack)

Arguments

cov.table
a balance table, intended to be the results component of the list that bal.stat returns
stage
a title for the method ``type" used to create the weights, used to label the results
alerts.stack
an object for collecting warnings issued during the analyses

Value

  • check.err returns no objects but does alter the alerts.stack object

Details

Checks for treatment standard deviations that are exceedingly small or zero and for effect sizes that are unusually large, both indicative of numerical problems or extreme sample imbalance