COM - Feval() passing a table as a Double[,] is as expected, nonetheless c# Dictionary.ToArray() returns a Double[][] (what is called a jagged array)

What would a best practice be in passing a Dictionary like structure into a matlab function such as "cov" using COM's Feval() ... take the below example:

SortedDictionary<DateTime, Double[]> tableTT;
...
matlab.Feval("cov", 1, out result, tableTT.Values.ToArray());

will fail, as ToArray() returns a jagged array.

Is there a way to avoid using a "conversion" function, such as:

static double[,] ImperativeConvert(double[][] source)
{
    double[,] result = new double[source.Length, source[0].Length];

    for (int i = 0; i < source.Length; i++)
    {
        for (int k = 0; k < source[0].Length; k++)
        {
            result[i, k] = source[i][k];
        }
    }

    return result;
}

to convert the jagged array into a two-dimentional array?

Answer 1

[Venkat Siddarth Reddy]

Hi Andy,

You can call another MATLAB function called reshape, to convert the jagged array into 2D array.

To learn more about it,refer to the following documentation:

https://www.mathworks.com/help/matlab/ref/com.feval.html?searchHighlight=Feval%20COM&s_tid=srchtitle_support_results_1_Feval%20COM#mw_beae9a32-6240-40d1-9514-f7c91d5a02f1

I hope this resolves your query, if not please comment down your query.