HISTOGRAM 2 COLOURS - positive numbers red, negative numbers blue

Hello,

I have a histogram showing temperature warming (positive numbers) and cooling (negative). It is based on linear regression and the basic code for hte histpgram part is below.

I am wondering is it possible to do the positive bars (there are 1000s) in red and the neg (100s) in blue? Similar to the split in the picture below the code (obviously without the arrow etc.).

slopes = slope_TSA(:);
slopes(isnan(slopes)) = [];
figure;
histogram(slopes);
ylim([0 180000]);
xlim([-0.0001 0.0002]);
title('Distribution of combined ctl slopes - TSA');

Answer 1

[madhan ravi]

EDITED

h=histogram(slopes(slopes>0));
h.FaceColor='red'
hold on
h1=histogram(slopes(slopes<0));
h1.FaceColor='blue'

[aine gormley]

Hi, thanks, I tried it but it says "Unrecognized property 'Facecolor' for class 'matlab.graphics.chart.primitive.Histogram'." Do you know what I am doing wrong?

[madhan ravi]

it has to be FaceColor my typo

[aine gormley]

Hi, thanks so much that worked perfect with the graph.

do you know if it is possible to calculate the percentage on each side (like in the figure I attached) or is that a separate calculation they have done?

[madhan ravi]

Anytime :) , if it answered your original question make sure to accept the answer and to your latter comment give me some time to figure it out

[aine gormley]

done :-)

[madhan ravi]

Download https://www.mathworks.com/matlabcentral/fileexchange/59361-histogram-percentage you may find it useful

[aine gormley]

Thanks, tho this function doesnt seem to display right - even using the example. I will open a new query regarding this, thanks for your time