Array of +1s and -1s: Want Pink and Blue for imagesc

I have a 2-dim array of just +1's and -1s. I am using imagesc(myarray) and I want it to appear with the +1's showing up as a bring pink and the -1's showing up as blue. Does anyone have any suggestions? Thank you!!!

Answer 1

[Aylin]

Hi Emily, the colormap function might work for you:

% Generate some sample data.
data = 2 * randi([0 1], 10, 10) - 1;

% Define the color map. Normalize 0-255 RGB values to 0-1 intensities.
map = [255, 20, 147;
         0,191, 255] / 255;

% Plot data and set the new colormap on the current figure.
imagesc(data)
colormap(map)

This generates the following image:

[Emily]

Thank you!