how to plot graph with color for xy vs z?

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Ruthvik sainath meka
评论： Michael Madelaire 2019-7-23
I want to plot a graph showing me XY values for perticulur Z value
i want z as a colour
so i will get the data as XY for pertuculur Z

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Michael Madelaire
Michael Madelaire 2019-7-23
I think you are looking for a scatterplot.
clear all; close all; clc;
x = rand(100,1);
y = rand(100,1);
z = rand(100,1);
figure();
scatter(x,y,20,z);
xlabel('x');
ylabel('y');
c = colorbar;
c.Label.String = 'z';
grid on;
  2 个评论
Ruthvik sainath meka
Ruthvik sainath meka 2019-7-23
i want to get a plot like this
Capture2.PNG
i have data
Capture.PNG
i want a plot x,y as drain voltage, gate voltage and z as current
x,y and z should give the colour so that i can understand from the intensty graph that for a perticolour x,y this current is there
Michael Madelaire
Michael Madelaire 2019-7-23
This should do it.
clear all; close all; clc;
x = rand(100, 1);
y = rand(100, 1);
z = rand(100, 1);
[xx, yy] = meshgrid(x, y);
zz = griddata(x, y, z, xx, yy);
figure()
[~, h] = contourf(xx,yy,zz,10);
set(h, 'LineColor', 'none');
xlabel('x');
ylabel('y');
c = colorbar;
c.Label.String = 'z';

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