matrix_to_stack {funrar} | R Documentation |
Matrix to stacked (= tidy) data.frame
Description
From a matrix with values to a stacked (= tidy) data.frame, exclude NA from
given data.frame. If supplied object is not a matrix, try to coerce object
to matrix first. matrix_to_tidy()
is an alias of this function.
Usage
matrix_to_stack(
my_mat,
value_col = "value",
row_to_col = names(dimnames(my_mat))[1],
col_to_col = names(dimnames(my_mat))[2]
)
Arguments
my_mat |
matrix you want to transform in stacked (= tidy) data.frame |
value_col |
(optional) character vector to use for value column (default: 'value') |
row_to_col |
(optional) character vector used for name of column in data.frame corresponding to rows in matrix (default: corresponding dimension name) |
col_to_col |
(optional) character vector used for name of column in data.frame corresponding to columns in matrix (default: corresponding dimension name) |
Value
a stacked (= tidy) data.frame with, a column for row names, one for column names and a third one for the values.
See Also
stack_to_matrix()
for the reverse operation
Examples
data("aravo", package = "ade4")
# Site-species matrix converted into data.frame
mat = as.matrix(aravo$spe)
dat = matrix_to_stack(mat, "value", "site", "species")
str(dat)