create_node {cat.dt} R Documentation

## Node creator

### Description

Generates a list that represents a specific node of the CAT decision tree

### Usage

create_node(ID, dens_vec, item, item_prev, est, SE, ID_sons, D, as_val)


### Arguments

 ID integer that represents the specified node identification in the form of 10000*level+position. dens_vec vector of the density function values in the specified node of the evaluated ability levels item integer that represents the item of the specified node item_prev vector of items of the previous nodes est estimated ability level in the specified node SE standard error of the estimated ability level ID_sons data frame containing the information of the sons of the specified node. Rows represent sons and columns represent the ID of the son, the response given to the item of the specified node that leaded to the son and the probability of reaching the son given that response (not equal to one if the son had previously splitted) D confluency of the specified node as_val associated value of the specified node. It can be the MSE if the selection criterium is "MEPV" and the FI if the selection criterium is "MFI"

### Value

A list that represents a node of the decision tree