Color Bar Classifying different time points

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Systematically Neural 2018-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/422253-color-bar-classifying-different-time-points

评论： jonas 2018-10-16

I have three sets of time - Time1, Time2, Time3. These three time points do not overlap. I would like to make a color bar to show when it is Time1, Time2 or Time3. this is hard to describe so I attached an image with the basic design. The idea being that this would continue for whatever times are in each of the three vectors.

Please let me know if I can clarify anymore.

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Systematically Neural 2018-10-4

I attached two matrices with time points. The plot just could be similar to the plot above, other than that I am not too picky!

jonas 2018-10-4

编辑：jonas 2018-10-4

Oh, I thought you had some x-y data to go with the times. I have actually written a code for this exact type of plot before. I'll see if I can find it in my previous answers.

Edit: Here it is. I'll see if I can adapt it to your data.

https://se.mathworks.com/matlabcentral/answers/414253-why-do-plotting-functions-like-bar-or-barh-take-a-long-time-to-execute

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jonas 2018-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/422253-color-bar-classifying-different-time-points#answer_339800

编辑：jonas 2018-10-8

在 MATLAB Online 中打开

Try something like this, which is based on a previous answer

n=length(t_comb_2(:));
subplot(1,2,1);
x=t_comb_2;
x=x';
x=x(:)';
tic
X=[0 x;0 x];
Y=[1.1.*ones(1,n+1);0.9.*ones(1,n+1)];
colormap(lines(n+1))
Z=linspace(0,1,n+1);
Z=[Z;Z];
surf(X,Y,Z)
view([0 90])
set(gca,'ycolor','none')
axis tight
ylabel('time')

Note that the colors were are determined by their z-value and the colormap lines. You can change the colormap and try different ones.

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jonas 2018-10-12

编辑：jonas 2018-10-12

在 MATLAB Online 中打开

Just take a look at this example

load time2.mat
n=length(t_comb_2(:));
x=t_comb_2;
x=x';
x=x(:)';
X=[0 x;0 x];
Y=[1.1.*ones(1,n+1);0.9.*ones(1,n+1)];
colormap([0 0 0;1 0 0;0 0 1])
Z=[1 2 3 1 2 3 1 2 3 2 1 3 2 1 3 2 1 1 1 1 1 1 1 1 1 1 1]
Z=[Z;Z];
surf(X,Y,Z)
view([0 90])
set(gca,'ycolor','none')
axis tight
ylabel('time')

in the colormap I have defined three colors: black, red and blue.

colormap([0 0 0;1 0 0;0 0 1])
       black↑  red↑ blue↑

there are 26 segments in time2.mat, and I've added a 27th segment between t=0 and the first segment. If you do not wish to have this 27th segment, just remove the zeros from this line:

X=[0 x;0 x];

We need to define a number of colors equal to the number of segments, in this case 27. This is done here:

Z = [1 2 3 1 2 3 1 2 3 2 1 3 2 1 3 2 1 1 1 1 1 1 1 1 1 1 1]
black↑    red↑   blue↑

This is the color sequence. In this case it's [black red blue black red blue black red blue red black...]. Note that some segments are really short, so they are barely visible in the plot.

If you have 4 different groups, just define 4 colors in the colormap and number your segments 1-4 instead of 1-3.

Systematically Neural 2018-10-16

I have been trying to work with your solution and I do not htink that it is addressing what I asked

jonas 2018-10-16

Its a bar with different color segments... How can it not be what you asked? Do you want time1 and time2 plotted in the same bar?? Are they not overlapping?

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