Delta (version 0.1.1.11)

GetDeltaPi: Calculate Delta and Pi parameters function

Description

This function provide an estimation of Pi and Delta for each category. To do so, it is needed to solve the non-linear equation of B, given by the function GetB.

Usage

GetDeltaPi(mx, tp, tol = 1e-12, maxits = 1000)

Arguments

mx

Matrix. Modified matrix to have a solution Usually GetMx$M2.

tp

String. Type of problem.

tol

Double number. Indicate the precision of the numeric method to calculate B. Expected to be 1e-6 <= tol <= 1e-15.Default is 1e-12.

maxits

Whole number. Indicate the maximum number of iterations of the numeric method to calculate B. Expected to be 100 <= maxits <= 5000. Default is 1000.

Details

In some type of problems, such as "2.1" and "3.1", problem has a unique solution for Delta and infinite for Pi. For this reason we calculate the solution for Delta and get Pi as NULL.

Examples

# NOT RUN {
GetDeltaPi(mx = matrix(c(1,0,0,0,2,0,0,0,3),3,3), tp = "3.1", tol = 1e-12, maxits = 1000)
GetDeltaPi(mx = matrix(c(1.5,2.5,0.5,3.5,4.5,0.5,0.5,0.5,1.5),3,3), tp = "3.2", 
           tol = 1e-12, maxits = 1000)
# }