index

Returns the index within the hypecube where the input is true (ie $>0.5$). For example, where

$$\begin{eqnarray*} \iota(3,3) &=& \left(\begin{array}{ccc} 0 & 3 & 6 \\ 1 & 4... ...ray}{ccc} 0 & 3 &\\ 1 & 4 &\\ 2 & & \end{array}\right),\\ \end{eqnarray*}$$

Note that the output array has the same shape as the input, with unused values padded with NANs (missing value).

Dimension and argument parameters are unused.