vec2mat function

Fills a triangular matrix from the inputed vector

vec2mat(x,diag=FALSE,upper=FALSE)

Arguments

• x: a vector
• diag: whether the vector contains the diagonal elements
• upper: whether the vector contains the upper trinagular matrix elements

Returns

a matrix

Examples

{
 vec2mat(1:10)
 vec2mat(1:10,diag=TRUE)
 vec2mat(1:10,upper=TRUE)
}