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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.
As opposed to a variable, a constant is a vector in which the elements contain less than or equal to one unique value.
# NOT RUN {
library(LaplacesDemon)
is.constant(rep(1,10)) #TRUE
is.constant(1:10) #FALSE
# }
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