removing some data in a 4d plot
1 view (last 30 days)
Show older comments
Hi every one,
I have a 4d plot and want to make some limitation for the 4th dimention of my graph. For example if the value is higher than 0.9 plot otherwise ignore that point. I am using scatter3(x,y,z,10,teta,'filled') and I attached the sample input file.
I did the limitation using teta(teta>0.9)=[];
And the error I faced is:
Error using scatter3
Color must be one RGB triplet, an m-by-3 matrix of RGB triplets with one color per scatter point, or an m-by-1 vector with one value
per scatter point.
cla
load 4dplot.txt
x = 4dplot(:,1);
y = 4dplot(:,2);
z = 4dplot(:,3);
teta = 4dplot(:,4);
scatter3(x,y,z,10,teta,'filled')
ax = gca;
ax.XDir = 'reverse';
view(-31,14)
cb = colorbar;
0 Comments
Accepted Answer
DGM
on 12 May 2022
You have to apply the same operation to all of the vectors.
load 4dplot.txt
x = X4dplot(:,1);
y = X4dplot(:,2);
z = X4dplot(:,3);
teta = X4dplot(:,4);
goodpts = teta <= 0.9;
scatter3(x(goodpts),y(goodpts),z(goodpts),10,teta(goodpts),'filled')
ax = gca;
ax.XDir = 'reverse';
view(-31,14)
cb = colorbar;
0 Comments
More Answers (1)
Chunru
on 12 May 2022
data = load('4dplot.txt');
% x = 4dplot(:,1); % wrong: variable names canno start with number
x = data(:,1);
y = data(:,2);
z = data(:,3);
teta = data(:,4);
idx = teta >= 0.9;
scatter3(x(idx),y(idx),z(idx),10,teta(idx),'filled')
ax = gca;
ax.XDir = 'reverse';
view(-31,14)
cb = colorbar;
0 Comments
See Also
Categories
Find more on Scatter Plots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!