/// <summary>
/// Finds the first occurence of the specfied value along the specified axis and returns its index.
/// </summary>
/// <param name="value">The value to find.</param>
/// <param name="axis">The axis to find the value along.</param>
/// <param name="source">The NdArray containing the source values.</param>
/// <returns>A new NdArray containing the indices of the first occurence of <paramref name="value"/>.</returns>
public static int[] TryFind(T value, NdArray <T> source)
{
var pos = FindAxis(value, 0, NdArray <T> .Flatten(source)).Value;
if (pos != SpecialIdx.NotFound)
{
return(Layout.LinearToIndex(source.Layout, pos));
}
return(new int[] { });
}
/// <summary>
/// Counts the elements being true returning the result as a NdArray.
/// </summary>
/// <param name="source">The NdArray containing the source values.</param>
/// <returns>A new scalar NdArray containing the result of this operation.</returns>
public static NdArray <int> CountTrueNdArray(NdArray <bool> source)
{
return(CountTrueAxis(0, NdArray <bool> .Flatten(source)));
}
/// <summary>
/// Finds the indicies of the maximum value of the NdArray.
/// </summary>
/// <param name="source">The NdArray containing the source values.</param>
/// <returns>The indices of the position of the maximum value.</returns>
public static int[] ArgMax(NdArray <T> source)
{
return(Layout.LinearToIndex(source.Layout, ArgMaxAxis(0, NdArray <T> .Flatten(source)).Value));
}
