Description Usage Arguments Value Author(s) See Also Examples
This function can be used to define breakpoints for use with the functions draw.grid
and legend.grid
1 | breaks.grid(grd, quantile = 0.975, ncol = 12, zero = TRUE)
|
grd |
an array produced by |
quantile |
the maximum value of the breaks will be determined by the quantile given here. This can be used to deal with outlying values in |
ncol |
number of colours to be used, always one more than the number of breakpoints. Defaults to 12. |
zero |
logical, should zero be included as a separate category? Defaults to |
a vector of breakpoints to be used by draw.grid
and legend.grid
Hans Gerritsen
1 2 3 4 5 | breaks.grid(100,ncol=6)
breaks.grid(100,ncol=5,zero=FALSE)
# create breaks on the log scale
exp(breaks.grid(log(10000),ncol=4,zero=FALSE))
|
[1] 0 0 20 40 60 80 100
[1] 0 20 40 60 80 100
[1] 1 10 100 1000 10000
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