rsum: Helper function to take sums over variable arrays.

In jlepird/raml: Algebraic Modeling Language for Linear and Integer Programs

Description

Helper function to take sums over variable arrays.

Usage

rsum(var, ...)

Arguments

var	The indexed variable to be summed.
...	The indicies to iterate through.

Examples

m <- Model()
m$var(x[1:3] >= 0)
rsum(x[i], i = 1:3)  # x[1] + x[2] + x[3]
m$var(y[1:2, 1:2] >= 0)
rsum(y[i,j], i = 1:2, j = 1:2)  # y[1,1] + y[1,2] + y[2,1] + y[2,2]
v <- c(1,2,3)
rsum(v[i]*x[i], i = 1:3)  # 1*x[1] + 2*x[2] + 3*x[3]

jlepird/raml documentation built on May 19, 2019, 12:46 p.m.