SPSbalan: Test for Within-Bin X-covariate Balance in Supervised...

Description Usage Arguments Value Author(s) References

Description

Test for Conditional Independence of X-covariate Distributions from Treatment Selection within Given, Adjacent PS Bins. The second step in Supervised Propensity Scoring analyses is to verify that baseline X-covariates have the same distribution, regardless of treatment, within each fitted PS bin.

Usage

1
SPSbalan(envir, dframe, trtm, yvar, qbin, xvar, faclev = 3)

Arguments

envir

The local control environment

dframe

Name of augmented data.frame written to the appn="" argument of SPSlogit().

trtm

Name of the two-level treatment factor variable.

yvar

The outcome variable.

qbin

Name of variable containing bin numbers.

xvar

Name of one baseline covariate X variable used in the SPSlogit() PS model.

faclev

Maximum number of different numerical values an X-covariate can assume without automatically being converted into a "factor" variable; faclev=1 causes a binary indicator to be treated as a continuous variable determining a proportion.

Value

An output list object of class SPSbalan. The first four are returned with a continuous x-variable. The next 4 are used if it is a factor variable.

Author(s)

Bob Obenchain <[email protected]>

References


LocalControl documentation built on May 2, 2019, 7:29 a.m.