Description Frequency functions Sample size functions Other helper functions Stata replica functions SAS replica functions
The helpR package contains descriptive functions for tasks such as making print-friendly bivariate tables, sample size flow counts, and more. It also contains R approximations of some common, useful SAS/Stata functions.
The helper functions bivariate_compare
and
univar_freq
create frequency tables. univar_freq
produces simple n and percent for categories of a single variable,
while bivariate_compare
compares continuous or categorical
variables across categories of a comparison variable. This is particularly
useful for generating a Table 1 or 2 for a publication manuscript.
sample_flow
produces tables illustrating how final sample
size is determined and the number of participants excluded by each
exclusion criteria.
nagelkerke
calculates the Nagelkerke pseudo r-squared for a
logistic regression model.
ladder
, gladder
, and pwcorr
are
approximate replicas of the respective Stata functions. Not all
functionality is currently incorporated. stata_tidy
reformats R model output to a format similar to Stata.
proc_means
is an approximate replica of the respective SAS
function. Not all functionality is currently incorporated.
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