com.itemanalysis.psychometrics.irt.estimation

Class ItemResponseFileSummary

java.lang.Object

com.itemanalysis.psychometrics.irt.estimation.ItemResponseFileSummary

public class ItemResponseFileSummary
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ItemResponseFileSummary()

Method Summary

Modifier and Type	Method and Description
ItemResponseVector[]	getCondensedResponseVectors(java.io.File f, int start, int nItems, boolean headerIncluded) Summarize comma delimited file.
ItemResponseVector[]	getResponseVectors(java.io.File f, boolean headerIncluded)
ItemResponseVector[]	getResponseVectors(java.io.File f, int start, int nItems, boolean headerIncluded) Reads a comma delimited file.
ItemResponseVector[]	getResponseVectors(java.lang.String fileName, boolean headerIncluded)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ItemResponseFileSummary

public ItemResponseFileSummary()

Method Detail

getResponseVectors

public ItemResponseVector[] getResponseVectors(java.lang.String fileName,
                                               boolean headerIncluded)

getResponseVectors

public ItemResponseVector[] getResponseVectors(java.io.File f,
                                               boolean headerIncluded)

getResponseVectors

public ItemResponseVector[] getResponseVectors(java.io.File f,
                                               int start,
                                               int nItems,
                                               boolean headerIncluded)

Reads a comma delimited file.

Parameters:

f - file to be summarized

headerIncluded - true if header included. False otherwise. The header will be omitted (ignored).

Returns:

getCondensedResponseVectors

public ItemResponseVector[] getCondensedResponseVectors(java.io.File f,
                                                        int start,
                                                        int nItems,
                                                        boolean headerIncluded)

Summarize comma delimited file. It will extract the data beginning in the column indicated by start and it will continue for nItems columns.

Parameters:

f - file to summarize

start - the column index of the first item. It is zero based. If teh data start in the first column, then start=0.

nItems - number of items to read from the file. It will begin at the column indicated by start.

headerIncluded - true if header is included. False otherwise. The header will be omitted.

Returns:

an array of item resposne vectors