Hey guys, I need to plot my data so that I get a figure like this image. My data is a matrix of the power spectrum density of the measurements of 17 channels arranged in columns. I want to plot a 3D waterfall figure containing the number of channels (Y-axis), frequency values (X-axis), and amplitudes (Z-axis). But the waterfall function in MatLab takes the number of samples as X-axis, not the frequencies. Thanks for the help.