Melts an array of dimensions x, y, and z into a dataframe containing columns x, y, z, and value where value is whatever was stored in the array at those coordinates.
Examples
# First we need to create an array to melt
## Make data to fill the array
vec1 <- c(5, 9, 3)
vec2 <- c(10:15)
## Create dimension names (x = col, y = row, z = which matrix)
x_vals <- c("Col_1","Col_2","Col_3")
y_vals <- c("Row_1","Row_2","Row_3")
z_vals <- c("Mat_1","Mat_2")
## Make an array from these components
g <- array(data = c(vec1, vec2), dim = c(3, 3, 2),
dimnames = list(x_vals, y_vals, z_vals))
## "Melt" the array into a dataframe
array_melt(array = g)
#> z y x value
#> 1 Mat_1 Col_1 Row_1 5
#> 2 Mat_1 Col_1 Row_2 10
#> 3 Mat_1 Col_1 Row_3 13
#> 4 Mat_1 Col_2 Row_1 9
#> 5 Mat_1 Col_2 Row_2 11
#> 6 Mat_1 Col_2 Row_3 14
#> 7 Mat_1 Col_3 Row_1 3
#> 8 Mat_1 Col_3 Row_2 12
#> 9 Mat_1 Col_3 Row_3 15
#> 10 Mat_2 Col_1 Row_1 5
#> 11 Mat_2 Col_1 Row_2 10
#> 12 Mat_2 Col_1 Row_3 13
#> 13 Mat_2 Col_2 Row_1 9
#> 14 Mat_2 Col_2 Row_2 11
#> 15 Mat_2 Col_2 Row_3 14
#> 16 Mat_2 Col_3 Row_1 3
#> 17 Mat_2 Col_3 Row_2 12
#> 18 Mat_2 Col_3 Row_3 15