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Calculates the relative difference, defined as $$\frac{\vert x - y \vert}{x} $$ between two arrays or data frames, where x are considered reference values.

Usage

rel_diff(x, y, pct = TRUE, epsilon = 10 * .Machine$double.eps)

Arguments

x

An array or data frame, considered the reference values

y

Comparison array or data frame

pct

Logical; if TRUE the relative differences are multiplied by 100, giving values in percent difference from x.

epsilon

Threshold for values near zero

Value

An array or data frame the same size as x and y containing the relative differences

Examples

# example code
m1 <- cbind(c(0,1), c(1,1))
m2 <- cbind(c(0,1), c(1.01,1.11))
rel_diff(m1, m2, pct = FALSE) 
#> Error in rel_diff(m1, m2, pct = FALSE): could not find function "rel_diff"
rel_diff(m1, m2) 
#> Error in rel_diff(m1, m2): could not find function "rel_diff"