R: Test whether all elements of a vector are equal

allEqual {tractor.base}

R Documentation

Test whether all elements of a vector are equal

Description

This function is a wrapper around all, testing whether all elements of the specified vector are equal to each other.

Usage

allEqual(x, ignoreMissing = FALSE)

Arguments

`x`	A vector of any mode, including a list.
`ignoreMissing`	If `TRUE`, missing elements will be ignored. Otherwise the presence of missing values will result in a return value of `FALSE`.

Value

TRUE if all elements test (exactly) equal; FALSE otherwise.

Author(s)

Jon Clayden

References

Please cite the following reference when using TractoR in your work:

J.D. Clayden, S. Muñoz Maniega, A.J. Storkey, M.D. King, M.E. Bastin & C.A. Clark (2011). TractoR: Magnetic resonance imaging and tractography with R. Journal of Statistical Software 44(8):1-18. http://www.jstatsoft.org/v44/i08/.

Examples


allEqual(c(1,1,1))  # TRUE
allEqual(c(1,1,NA))  # FALSE
allEqual(c(1,1,NA), ignoreMissing=TRUE)  # TRUE

[Package tractor.base version 3.1.0 Index]