i have a question about logical indexing.
I have an array of three columns called pressure. Firstly, i check for values < 1000 (low = pressure < 1000) and then i would like to give those values new RGB values [0.1, 0.5, 0.9] so i can create a RGB pressure map.
i tried pressure(low) = [0.1, 0.5, 0.9] but this obviously didnt work. pressure(low) = 0.9 is working but is not the prefered outcome.
Any idead how this might work? Or do i have apply every column seperately like this: pressure(low, 1) = 0.1, pressure(low, 2) = 0.5 ... and so on?