is.monotone {tdROC} | R Documentation |
This internel function determines if a numeric vector X is monotone (increasing or decreasing) or not. Ties in the sequence are considered as monotone.
is.monotone(X)
X |
a numerical vector to be tested. |
Returns True or False.
a <- 1:10 ;
b <- c( 1:5, 4:2 ) ;
c <- c( 1:4, 4, 4, 4, 5:10 ) ;
d <- c( 10:6, 3:-2 ) ;
is.monotone( a )
is.monotone( b )
is.monotone( c )
is.monotone( d )