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Statistics.BartlettTest Method
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Performs the Bartlett test for dimensionality of data.

Syntax
C#
Visual Basic
public static void BartlettTest([In] TMtx Data, out int NumDim, [In] TVec SignifVec, [In] double Alpha);
Parameters
Parameters 
Description 
[In] TMtx Data 
Data to be analyzed. 
out int NumDim 
Returns the number of dimensions needed to explain the non random variation in data. If NumDim is less than zero, the test cannot be applied to this data.  
[In] TVec SignifVec 
Returns calculated significance probabilities for one, two ... variables (dimensions). 
[In] double Alpha 
Desired significance. 
See Also

PCA

Example
using Dew.Math; using Dew.Stat.Units; namespace Dew.Examples { private void Example() { int numdim; Matrix data = new Matrix(0,0); Vector signifVec = new Vector(0); data.LoadFromFile("c:\temp\data.mtx"); // load test data Statistics.BartlettTest(data, out numdim, signifVec, 0.05); // Alpha = 5% // returns numdim and signifVec } }
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