Documentation of samgrad

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Function Synopsis

[Grad] = samgrad(x, DistDataHigh, DistDataHighMat, DimDataLow)

Help text

 Sammon mapping gradient calculation

 long description of function.

 Syntax:  [Grad] = samgrad(x, DistDataHigh, DistDataHighMat, DimDataLow)

 Input parameter:
    x         - data points
    DistDataHigh    - distances betwenn data points in high dimension
                         as a row vector
    DistDataHighMat - distances betwenn data points in high dimension
                         as a full matrix
    DimDataLow      - scalar containing dimension of low dimensional data

 Output parameter:
    Grad      - gradient

 See also: sammon, samobj

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