MATLAB Compiler

int NumberOfNonZeros() const

Return number of nonzero elements for sparse array.

C++ syntax

• #include "mclcppclass.h"
  mwArray a(2, 2, mxDOUBLE_CLASS);
  int n = a.NumberOfNonZeros();// Should return 4
  

Arguments

None

Return value

Actual number of nonzero elements in this array.

Description

Use this method to determine the size of the of the array's data. If the underlying array is not sparse, this returns the same value as NumberOfElements().

Note    This method does not analyze the actual values of the array elements. Instead, it returns the number of elements that could potentially be nonzero. This is exactly the number of elements for which the sparse matrix has allocated storage.

int NumberOfElements() const

int MaximumNonZeros() const

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