using System;

namespace NumSharp

{

public partial class NDArray

{

/// <summary>

/// Stack arrays in sequence vertically (row wise).<br></br>

/// This is equivalent to concatenation along the first axis after 1-D arrays of shape(N,) have been reshaped to(1, N). Rebuilds arrays divided by vsplit.

/// </summary>

/// <typeparam name="T">The type dtype to return.</typeparam>

/// <param name="tup">The arrays must have the same shape along all but the first axis. 1-D arrays must have the same length.</param>

/// <returns>https://docs.scipy.org/doc/numpy/reference/generated/numpy.vstack.html</returns>

public NDArray vstack(params NDArray[] tup)

{

if (tup == null)

throw new ArgumentNullException(nameof(tup));

NDArray[] list = new NDArray[1 + tup.Length];

list[0] = this;

tup.CopyTo(list, 1);

return np.vstack(list);

}

}

}