How can I plot two variables with the line color varying as the third variable?

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My goal is to plot two variables, and vary the color of the lines by the third variable. I've done this before using scatter easily with the following code:
figure(2)
scatter(dist,geoPga,[],mag,'filled')
c = colorbar;
c.Label.String = 'Moment Magnitude, Mw'
xlabel('Hypocentral Distance to Station (km)')
ylabel('Geometric PGA (cm/s/s)')
title('Geometric PGA vs. Distance to Station')
But trying something similar with plot doesn't seem to work... Here is what I have tried so far...
figure(1)
plot(1./T,ScaledSa,[],log10stddev,'Filled')
c = colorbar;
c.Label.String = 'Standard Deviation'
title('Target Spectrum & Scaled
Records','FontWeight','bold','FontSize',14)
xlabel('Frequency (Hz)','FontWeight','bold','FontSize',12)
ylabel('PSA (cm/s/s)','FontWeight','bold','FontSize',12)
xlim([0 50])
hold on
Essentially, I'm trying to show the standard deviation as the third variable... With a certain color lines representing small standard deviations, and a gradient of different colors up to a high standard deviation.
Any tips?

Risposte (2)

KSSV
KSSV il 11 Set 2018
x = linspace(0,2*pi,1000) ;
y = sin(x);
z = zeros(size(x));
c = x; % This is the color, vary with x in this case.
surface([x;x],[y;y],[z;z],[c;c],'facecolor','none','edgecolor','interp','linewidth',2);
  1 Commento
Bridger Baird
Bridger Baird il 14 Set 2018
This isn't what I'm looking for. This varies the color along a particular line. I have 68 total lines, and I want each line to be only one color. Each line has an associated standard deviation, and I want to plot the lines with the smallest standard deviation being green, with a scale, up to the largest standard deviation being red.

Accedi per commentare.


darova
darova il 30 Mar 2020
Use patch
x = linspace(0,10);
y = sin(x);
c = jet(100);
n = length(x);
fv = [1:n-1;2:n]';
patch('faces',fv,'vertices',[x; y]',...
'faceVertexCData',c,...
'edgecolor','flat',...
'linewidth',2)

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