santoku (version 0.10.0)

chop_pretty: Chop using pretty breakpoints

Description

chop_pretty() uses base::pretty() to calculate breakpoints which are 1, 2 or 5 times a power of 10. These look nice in graphs.

Usage

chop_pretty(x, n = 5, ...)
brk_pretty(n = 5, ...)
tab_pretty(x, n = 5, ...)

Value

chop_* functions return a factor of the same length as x.

brk_* functions return a function to create breaks.

tab_* functions return a contingency table().

Arguments

x

A vector.

n

Positive integer passed to base::pretty(). How many intervals to chop into?

...

Passed to chop() by chop_pretty() and tab_pretty(); passed to base::pretty() by brk_pretty().

Details

base::pretty() tries to return n+1 breakpoints, i.e. n intervals, but note that this is not guaranteed. There are methods for Date and POSIXct objects.

For fine-grained control over base::pretty() parameters, use chop(x, brk_pretty(...)).

Examples

chop_pretty(1:10)

chop(1:10, brk_pretty(n = 5, high.u.bias = 0))

tab_pretty(1:10)