How to change the colour of the markers on a scattered graph?
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Hyeonjun Park
on 13 Jul 2021
Commented: Star Strider
on 15 Jul 2021
Hi all,
I have a data set which is 5 * 1 double (BMC_14_whole_sum) which is like 8.5, 8.8, 9.3 etc and I am plotting that in a boxplot and scatter graph to show where exactly the markers are. Below is what I have tried so far:
BMC_14_whole_sum = sum(BMC_14_whole,2);
boxplot(BMC_14_whole_sum)
hold on
scatter(ones(size(BMC_14_whole_sum)).*(1+(rand(size(BMC_14_whole_sum))-0.5)/10),BMC_14_whole_sum, 'filled')
hold off
title('BMC Whole W14')
I have attached my .mat file. The image above is something similar to what I get. I would like to have those 5 different markers to have 5 different colours and possibly 5 different marker styles as well. How can I do that? Also, if there is a simpler codes to plot the scatter graph rather than using (ones(size(BMC_14_whole_sum)).*(1+(rand(size(BMC_14_whole_sum))-0.5)/10),BMC_14_whole_sum), please suggest me too.
Thank you so much for the help
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Accepted Answer
Star Strider
on 14 Jul 2021
Try this —
LD = load('aw_w14_scans.mat');
BMC_14_whole = LD.BMC_14_whole;
BMC_14_whole_sum = sum(BMC_14_whole,2);
boxplot(BMC_14_whole_sum)
hold on
scatter(ones(size(BMC_14_whole_sum)).*(1+(rand(size(BMC_14_whole_sum))-0.5)/10),BMC_14_whole_sum, [], (1:numel(BMC_14_whole_sum)), 'filled')
colormap(jet)
hold off
title('BMC Whole W14')
mv = 'psdo^';
cm = colormap(jet(numel(BMC_14_whole_sum)))
xv = ones(size(BMC_14_whole_sum)).*(1+(rand(size(BMC_14_whole_sum))-0.5)/10);
yv = BMC_14_whole_sum;
figure
boxplot(BMC_14_whole_sum)
hold on
for k = (1:numel(BMC_14_whole_sum))
scatter(xv(k), yv(k), [], cm(k,:), 'filled', 'Marker',mv(k))
end
hold off
title('BMC Whole W14')
.
6 Comments
More Answers (2)
ANKUR KUMAR
on 13 Jul 2021
I don't think I understood your question completely. Please do attach sample data (probably in a .mat file) and your complete code. But I picked a line, and trying to answer that.
Answering this question:
" I can't seem to find a way. I would like to have 5 different markers to have 5 different colours. How can I do that?"
x = linspace(0,1*pi,200);
y = cos(x) + rand(1,200);
cols={'r','b','g','m','k'}; % If you want random colors, you can just simply generate RGB random numbers using randi commmand
markers={'d','o','+','^','*'};
for index=1:5
scatter(x,sin(x*index),cols{index},markers{index})
hold on
end
legend(strcat('Sin ',{' '},string([1:5]),'x'),'box','off','location','best')
3 Comments
ANKUR KUMAR
on 14 Jul 2021
@Star Strider properly answered your question. I don't want to repeat the code. Refer to his answer.
Steven Lord
on 14 Jul 2021
See the "Vary Circle Color" and "Fill the Markers" examples on the documentation page for the scatter function.
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