is.negative {schoolmath} | R Documentation |
This function checks wether the numbers of a vector are negative. It returns TRUE/FALSE
is.negative(x)
x |
A number or vector to be checked |
Joerg Schlarmann
is.negative(3) # this will return FALSE is.negative(-2) # this will return TRUE x <- c(-1, -2, 3.02, 4, -5.2, 6, -7) is.negative(x)