Rescale — scale_range • transx

scale_range(x, to, na.rm = getOption("transx.na.rm"))

scale_minmax(x, na.rm = getOption("transx.na.rm"))

scale_unit_len(x, na.rm = getOption("transx.na.rm"))

Arguments

x	`[univariate vector]` Univariate vector, numeric or ts object with only one dimension.
to	`[numeric(2): NULL]` Values that will determine the output range.
na.rm	`[logical(1): getOption("transx.na.rm")]` A value indicating whether NA values should be stripped before the computation proceeds.

[univariate vector]

Univariate vector, numeric or ts object with only one dimension.

[numeric(2): NULL]

Values that will determine the output range.

na.rm

[logical(1): getOption("transx.na.rm")]

A value indicating whether NA values should be stripped before the computation proceeds.

Value

Returns a vector with the same class and attributes as the input vector.

Details

To rescale a range between an arbitrary set of values [a, b], the formula becomes:

Examples

x <- c(10,5,1,-2)
scale_range(x, c(-1, 2))
#> [1]  2.00  0.75 -0.25 -1.00
scale_minmax(x)
#> [1] 1.0000000 0.5833333 0.2500000 0.0000000