Generate a breaks vector of size n with evenly spaced breaks in trans domain.
Arguments
- n
<
int> the size of the output vector. Ouput size will be at least length-2 for finite input.- trans
<
scales::trans> an invertible transformer.
Details
Breaks are generated by transforming the input range to trans domain, generating
a regular sequence of size n for the transformed range, then inverting the transform.
The input range must be finite for both the input domain and the trans domain. If
input is not finite, an empty vector is returned.
See also
Other breaks:
breaks_linear(),
breaks_log(),
breaks_manual(),
breaks_power(),
breaks_symlog()
Examples
breaks_trans(trans = scales::identity_trans())(-10:10)
#> [1] -10.000000 -7.777778 -5.555556 -3.333333 -1.111111 1.111111
#> [7] 3.333333 5.555556 7.777778 10.000000
breaks_trans(trans = symlog_trans())(-10:10)
#> [1] -10.0000000 -5.4561274 -2.7892346 -1.2239801 -0.3052999 0.3052999
#> [7] 1.2239801 2.7892346 5.4561274 10.0000000
breaks_trans(trans = power_trans())(-10:10)
#> [1] -10.0000000 -6.0493827 -3.0864198 -1.1111111 -0.1234568 0.1234568
#> [7] 1.1111111 3.0864198 6.0493827 10.0000000
breaks_manual(c(-10, 0, 10))(-10:10)
#> [1] -10 0 10
breaks_manual(-1:1 * 1e6)(NULL)
#> [1] -Inf -1e+06 0e+00 1e+06 Inf