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TMtxMulLinReg.ValidSystem Method
TMtxMulLinReg Class | TMtxMulLinReg Members | StatTools Namespace | TMtxMulLinReg Methods | Example | See Also

Checks if system is valid.

Pascal
function ValidSystem: boolean;
Returns

True if A is not zero matrix and A.Rows (number of observables) is equal to Y.Length.

Description

Checks if system is valid.

See Also

A, Y

Example

Checks if defined system is valid: 

// ...
// y = A*b
MtxMulLinReg1.A.SetIt(3,2,false,[-5,2,
                              1,4,
                              8,0.5]);
MtxMulLinReg1.Y.SetIt(false,[-2,
                          1,
                          11]);
MtxMulLinReg1.UseWeights := false;
if MtxMulLinReg1.ValidSystem then MtxMulLinReg1.Recalc
  else ShowMessage('System not valid !');
// ...
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