/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <param name="other">
/// An object to compare with this object.
/// </param>
/// <returns>
/// <c>true</c> if the current object is equal to the <paramref name="other"/> parameter; otherwise, <c>false</c>.
/// </returns>
public virtual bool Equals(ISparseMatrixStorage <T> other)
{
// Reject equality when the argument is null or has a different shape.
if (other == null)
{
return(false);
}
// Accept if the argument is the same object as this.
if (ReferenceEquals(this, other))
{
return(true);
}
return(Equals(other, Constants.EqualsThreshold));
}
public override bool Equals(ISparseMatrixStorage <double> other, double tolerance)
{
var o = other as CompressedColumnStorage;
if (o == null)
{
return(false);
}
int nz = this.NonZerosCount;
if (this.ncols != o.ColumnCount || this.nrows != o.RowCount || nz != o.NonZerosCount)
{
return(false);
}
for (int i = 0; i < this.ncols; i++)
{
if (this.ColumnPointers[i] != o.ColumnPointers[i])
{
return(false);
}
}
for (int i = 0; i < nz; i++)
{
if (this.RowIndices[i] != o.RowIndices[i])
{
return(false);
}
// TODO: should compare relative values!
if (Math.Abs(this.Values[i] - o.Values[i]) > tolerance)
{
return(false);
}
}
return(true);
}
/// <summary> /// Check two matrices for equality. /// </summary> public abstract bool Equals(ISparseMatrixStorage <T> other, double tolerance);
