Sequence Generation

Generate multiplicative sequences, or series.

seqLog(from, to, base = 10)

Arguments

from, to

the starting and (maximal) end value of a sequence.

base

multiplication value.

Value

vector from lo to hi with multiplication steps of incr. Used for making ticks to a log-scaled axis

Details

Starting at from, seq multiplies successively by base until the maximal value is reached. This is useful for generating tick-spacing on log-transformed axes.

See also

plotutils

Examples

#Sequence suitable for log base 10 labels
seqLog(1E-5, 1E5)
#>  [1] 1e-05 1e-04 1e-03 1e-02 1e-01 1e+00 1e+01 1e+02 1e+03 1e+04 1e+05

#Sequence suitable for log base 2 labels
seqLog(2, 128,base=2)
#> [1]   2   4   8  16  32  64 128