Plot range of values as bars
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I'm trying to figure out how to plot a range of y values as bars. For example if my x-axis is days of the month, my bars would represent the range between the max and min temperatures for that day. The bar would be the shaded portion between the min and max values for each day. Kind of like a boxplot without all the statistical information included. Can't figure out how to do this. Any suggestions?
Star Strider on 22 Aug 2018
Tmax = randi([25 30], 1, 10); % Create Data
Tmin = randi([15 20], 1, 10); % Create Data
days = 1:10; % Create Data
plot([days; days], [Tmin; Tmax], 'LineWidth',5)
ylabel('Temperature Range (°C)')
Experiment to get the result you want.
More Answers (4)
dpb on 22 Aug 2018
Edited: dpb on 22 Aug 2018
OK, the bar option works pretty easily, actually, with some handle-diving for how things are organized.
% first make up some data...
x=1:30; % 30 days hath...
y=[randi(90,size(x)); % max, min temp distributions
ix=diff(y)<0; % fixup to make sure all
y(:,ix)=flipud(y(:,ix)); % max are > min
To use bar to get scaled as between min/max for the second bar, the bar definitions are intervals [0 L] and [L H-L] so the sum or max of second bar in the stacked plot is L+(H-L) = H instead of H+L if plot L,H as normal.
hB=bar([y(1,:); diff(y)].', ...
hB(1).CData=ones(length(x),3); % set the color of bottom to background (white)
ends up with
In the end, this doesn't seem much more effort to fix up actual temperature min/max data by the difference than would be to compute the error values for the errorbar solution. It's a little more abstract in needing to set the color for the one bar so with Steven's observation of the new property for the error bar ends lengths being able to be set, that's probably the better solution.
BTW, the idea of simply
to clear the first bar instead of rewriting the 'CData' doesn't work-- bar then turns the plot into a standard bar plot with zero baseline; doesn't keep the 'stacked' property any longer.
x = 1:1:12;
y = [34 23 47 28 41 35 21 18 38 20 30 32];