Reshape a flat vector back into a template structure

Inverse of dcm_vec: splits a flat numeric vector across the shape implied by one or more template arguments.

dcm_unvec(vX, ...)

Arguments

vX

Flat numeric vector.

...

One or more templates whose structure is copied; vX is distributed across them in order.

Value

A structure (or list of structures) matching the templates.

See also

dcm_vec for the forward operation.

Examples

# Round-trip: flatten a structure and rebuild it
P <- list(A = matrix(1:4, 2), C = c(5, 6))
identical(dcm_unvec(dcm_vec(P), P), P)
#> [1] FALSE

# The template supplies the shape; the vector supplies the values
tmpl <- list(A = matrix(0, 2, 2), C = numeric(2))
dcm_unvec(1:6, tmpl)
#> $A
#>      [,1] [,2]
#> [1,]    1    3
#> [2,]    2    4
#> 
#> $C
#> [1] 5 6
#>