MatrixRank

MatrixRank (matrixWaveA [, conditionNumberA ])

The MatrixRank function returns the rank of matrixWaveA subject to the specified condition number.

The matrix is not considered to have full rank if its condition number exceeds the specified conditionNumberA.

If the optional parameter conditionNumberA is not specified, IGOR uses the value 1.0E20.

MatrixRank supports the following numeric wave data types:

Real	Complex
SP	SP
DP	DP

The value of conditionNumberA should be large enough but taking into account the accuracy of the numerical representation given the numeric data type.

If there are any errors the function returns NaN.

See Also

Matrix Math Operations for more about Igor's matrix routines.