I made a plot of a matrix data (around 3000 columns x 2000 row) using ArrayPlot. The followings are the code and output.
As it is quite difficult to identify the value from a continuous color table, I would like to ask how to plot the graph with a discrete color table and the number of discrete colors can be defined by myself.
Thanks a lot in advance!
ArrayPlot[data, PlotRange -> Automatic,DataReversed -> {True, False}, ColorFunction -> ColorData["LightTemperatureMap"],PlotLegends -> {Style["Height (m)"], Placed[Automatic, Right]}]