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This function provides a logical test of whether or not a vector is a constant.

is.constant(x)

This is a vector.

The is.constant function returns a logical result, reporting TRUE when a vector is a constant, or FALSE otherwise.

is.constant

TRUE

FALSE

As opposed to a variable, a constant is a vector in which the elements contain less than or equal to one unique value.

unique

# NOT RUN { library(LaplacesDemon) is.constant(rep(1,10)) #TRUE is.constant(1:10) #FALSE # }

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