Plotting Matrix Columns with Colorbar

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T Matthew Evans
T Matthew Evans 2020-2-11
评论： Walter Roberson 2020-2-13
I have an array that is long in one dimension and short in another, let's say 50 x 5000. Each of the 50 rows is a point in space and each of the 5000 columns is a time. I would like to plot isochrones as so:
X = 50;
T = 5000;
x = 0:X;
t = 0:T;
M = somefun(x,t);
plot(M(:,1234),x);
However, I would like to plot many irregularly- (logarithmically?) spaced columns and would like to color them with increasing time and provide a corresponding colorbar. I can think of several ways to brute-force this, but I suspect that there is a simple way that I am missing.
Any help will be greatly appreciated.
  2 个评论
Walter Roberson
Walter Roberson 2020-2-13
T Matthew Evans commented,
I posted this question under an alias that I do not really use. I have reformulated the question in a somewhat more complete way and re-posted under my preferred alias. I would like very much to delete this question, please. Thank you.
Walter Roberson
Walter Roberson 2020-2-13
T Matthew Evans:
Our policy is that questions that have received a meaningful volunteer attempt at an answer are not deleted or closed, not unless the question is abusive or not permitted by law. This policy is in place to respect the efforts of the volunteers.
You can post a link to the updated question.

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回答（1 个）

KSSV
KSSV 2020-2-11
编辑：KSSV 2020-2-11
How about this approach?
x = 0:.05:2*pi;
y = sin(x);
z = zeros(size(x));
col = x; % This is the color, vary with x in this case.
surf([x;x],[y;y],[z;z],[col;col],...
'facecol','no',...
'edgecol','interp',...
'linew',5);
colorbar
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显示 1更早的评论
KSSV
KSSV 2020-2-11
Give same value for each column and use surf.
Moe Szyslak
Moe Szyslak 2020-2-11
I'm not sure surf will get me what I want -- here's a cartoon of what I am looking for. Does this make sense?
Clipboard01.jpg

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