Standarization

Convert number of standard deviations by which the value of a raw score is above or below the mean value of what is being observed or measured.

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

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

Arguments

x	[univariate vector] Univariate vector, numeric or ts object with only one dimension.
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.

Examples

x <- c(10,2,5,3)
std_mean(x)
#> [1]  1.4048787 -0.8429272  0.0000000 -0.5619515
scale(x)
#>            [,1]
#> [1,]  1.4048787
#> [2,] -0.8429272
#> [3,]  0.0000000
#> [4,] -0.5619515
#> attr(,"scaled:center")
#> [1] 5
#> attr(,"scaled:scale")
#> [1] 3.559026

std_median(x)
#> [1]  2.6979630 -0.8993210  0.4496605 -0.4496605