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is_varying

Check if the values in a vector vary

Description

Check if the values in a vector vary

Usage

is_varying(x, msg = "Vector does not vary.", fail = TRUE)

Arguments

x

a vector
msg

character string with the error message to return if fail = TRUE.
fail

logical whether to return an error if x does not vary.
Zelig

Everyone's Statistical Software

v5.1.7
GPL (>= 3)
Authors
Christine Choirat [aut], Christopher Gandrud [aut], James Honaker [aut], Kosuke Imai [aut], Gary King [aut], Olivia Lau [aut], Robert Treacy [aut, cre], IQSS Harvard University [cph]
Initial release
2020-12-03

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