Scatter plot with colorbar showing density of points

조회 수: 64 (최근 30일)
omid zandi
omid zandi 2021년 6월 8일
댓글: SALAH ALRABEEI 2021년 6월 8일
Hi everyone
I want to draw scatter plot along with a colorbar showing where the points are denser. I have attached the desired output cropped images.
Any help would be greatly appreciated.
The code is also (the mat files are also attached) :
% Loading mat files.
load('OrgValues.mat')
load('ATPK_AggregatedValues.mat')
% Visualization
figure;
P1 = plot(OrgValues, ATPK_AggregatedValues, 'o','MarkerFaceColor','b');
xlim([0,max(max(ATPK_AggregatedValues, OrgValues))])
ylim([0,max(max(ATPK_AggregatedValues, OrgValues))])
hold on
P2 = plot([0,max(max(ATPK_AggregatedValues, OrgValues))],[0,max(max(ATPK_AggregatedValues, OrgValues))],'-');
hold off
XlabelText = xlabel('Orginial');
YlabelText = ylabel('Aggregated');
  댓글 수: 2
KSSV
KSSV 2021년 6월 8일
What data you have?
omid zandi
omid zandi 2021년 6월 8일
I have attached the code and my data as mat files.
thanks in advance

댓글을 달려면 로그인하십시오.

답변 (1개)

SALAH ALRABEEI
SALAH ALRABEEI 2021년 6월 8일
You can for example measure the distance between all the coordinates, then take the inverse of minimum distance or average of al the distance between the value x(1),y(1) with all the others.
%
X = rand(1000,2);
D = pdist(X);
D = sort((squareform(D))); %
s = 1./D(2,:); % we take the miminum distance of each element except the the distance between itself at D(1,:);
s2 = 1.mean(D); % another way to use it. Depends on your data.
scatter(X(:,1),X(:,2),[],s)
  댓글 수: 2
omid zandi
omid zandi 2021년 6월 8일
Thanks, but would it be possible for you to convert your code according to my case as i have attached the code and mat files.
Thanks a lot
SALAH ALRABEEI
SALAH ALRABEEI 2021년 6월 8일
% write this after the load line
X =[OrgValues, ATPK_AggregatedValues];
D = pdist(X);
D = sort((squareform(D))); %
s = 1./D(2,:); % we take the miminum distance of each element except the the distance between itself at D(1,:);
s2 = 1/.mean(D); % another way to use it. Depends on your data.
Then replace
P1 = plot(OrgValues, ATPK_AggregatedValues, 'o','MarkerFaceColor','b');
by this
scatter(OrgValues, ATPK_AggregatedValues,[],s,'filled');
or
scatter(OrgValues, ATPK_AggregatedValues,[],s2,'filled');

댓글을 달려면 로그인하십시오.

카테고리

Help CenterFile Exchange에서 Annotations에 대해 자세히 알아보기

제품


릴리스

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by