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How to change the colour of the markers on a scattered graph?

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Hyeonjun Park
Hyeonjun Park 2021 年 7 月 13 日
コメント済み: Star Strider 2021 年 7 月 15 日
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

採用された回答

Star Strider
Star Strider 2021 年 7 月 14 日
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')
The colours are defined here by ‘(1:numel(BMC_14_whole_sum))’. Choose whatever colormap you want.
There is nothing similar to colororder for markers, so changing the markers would require a loop.
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 件のコメント
Hyeonjun Park
Hyeonjun Park 2021 年 7 月 15 日
oh alright thank you!
Star Strider
Star Strider 2021 年 7 月 15 日
As always, my pleasure!
.

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その他の回答 (2 件)

ANKUR KUMAR
ANKUR KUMAR 2021 年 7 月 13 日
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 件のコメント
ANKUR KUMAR
ANKUR KUMAR 2021 年 7 月 14 日
@Star Strider properly answered your question. I don't want to repeat the code. Refer to his answer.
Hyeonjun Park
Hyeonjun Park 2021 年 7 月 15 日
Alright thank you Ankur!

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Steven Lord
Steven Lord 2021 年 7 月 14 日
See the "Vary Circle Color" and "Fill the Markers" examples on the documentation page for the scatter function.

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