item_selector {cat.dt} R Documentation

## Linear programming solver

### Description

Computes the exposure rate of every item allocated to every level node. If more than one item is allocated to the same level node, the node splits.

### Usage

item_selector(E_mat, D, C, minmax)


### Arguments

 E_mat matrix of the associated value of every item allocated to every level node. Rows represent items and columns represent level nodes. The "associated value" can be the MSE if the selection criterium is "MEPV", the FI if the selection criterium is "MFI" and **** D vector of confluencies of every level node C vector of item capacities minmax optimisation direction. Options: TRUE to maximise and FALSE to minimise

### Value

A matrix of exposure rates. Rows represent items and columns represent level nodes. Every item with a positive exposure rate for a level node is allocated to that node