elementData

Class: bioma.data.ExptData
Namespace: bioma.data

Retrieve or set data element (DataMatrix object) in ExptData object

Syntax

DMObj = elementData(EDObj, Element) NewEDObj = elementData(EDObj, Element, NewDMObj)

Description

DMObj = elementData(EDObj, Element) returns the DataMatrix object from an ExptData object, specified by Element, a positive integer or character vector specifying an element name.

NewEDObj = elementData(EDObj, Element, NewDMObj) replaces the element (DataMatrix object) specified by Element in EDObj, an ExptData object, with NewDMObj, a new DataMatrix object, and returns NewEDObj, a new ExptData object.

Input Arguments

`EDObj`	Object of the `bioma.data.ExptData` class.
`Element`	Element (DataMatrix object) in an ExptData object, specified by either of the following: Positive integer Character vector specifying the element name
`NewDMObj`	Object of the DataMatrix class. The sample names and feature names in `NewDMObj` must match the sample names and feature names of `EDObj`.

Output Arguments

`DMObj`	Object of the DataMatrix class, returned from an ExptData object.
`NewEDObj`	Object of the `bioma.data.ExptData` class, returned after replacing a data element (DataMatrix object).

Examples

Construct an ExptData object, and then extract a DataMatrix object from it:

% Import the bioma.data namespace to make constructor functions
% available
import bioma.data.*
% Create DataMatrix object from .txt file containing 
% expression values from microarray experiment
dmObj = DataMatrix('File', 'mouseExprsData.txt');
% Construct ExptData object
EDObj = ExptData(dmObj);
% Extract first DataMatrix object
ExtractedDMObj = elementData(EDObj, 1);