For a continuous vector x, evenly and seq_min_max()
create a sequence of n evenly-spaced values over the range lower
-- upper. By default, lower is defined as min(x) and upper as
max(x), excluding NAs. For a factor x, the function returns
levels(x).
evenly(x, n = 100, by = NULL, lower = NULL, upper = NULL)seq_min_max(x, n, by = NULL, lower = NULL, upper = NULL)
A numeric vector of length n.
numeric; vector over which evenly-spaced values are returned
numeric; the number of evenly-spaced values to return. A default of
100 is used for convenience as that what is typically used when
evaluating a smooth.
numeric; the increment of the sequence. If specified, argument n
is ignored and the sequence returned will be from min(x) to max(x) in
increments of by.
numeric; the lower bound of the interval.
numeric; the upper bound of the interval.
See base::seq() for details of the behaviour of evenly() when
using by.
# \dontshow{
set.seed(1)
# }
x <- rnorm(10)
n <- 10L
# 10 values evenly over the range of `x`
evenly(x, n = n)
# evenly spaced values, incrementing by 0.2
evenly(x, by = 0.2)
# evenly spaced values, incrementing by 0.2, starting at -2
evenly(x, by = 0.2, lower = -2)
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