I would like to have a heatmap that does not “start” at the top left corner. I would like to insert some empty values first so the real data begins the third or fourth column. I already tried inserting an empty string and numpy.nan but with no sucess (Error in the Dash webview). When I insert 0 or -1, the values are displayed in the color of the very low values which is not what I want.
Another option would be to specifiy some particular color (e.g. White) for some specific value that does not occur in my dataset naturally (e.g. -1) so I can use this value as a placeholder.
Maybe someone already had this issue before.
Thanks in advance, Lorenz