MATLAB: How to plot a graph with one series but different colors depending on another data

colorplot

How can I plot a graph with one series but different colors depending on another data ?

Best Answer

A line is a single color (limiting, I know, but true :( ) so to have different colors along the length of a line you'll have to break the line into segments where the color is to change.

A scatter plot, otoh, creates a marker for each point so each can have a different color. You might consider a single neutral-color line with the markers on it showing the color gradient as an expedient.

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MATLAB: Graphing colors

You can use the few matlab built in colors ('red','green,'blue,'black','white','cyan','magenta','yellow'),

plot(...,'color','green',...)

but you could also just declare a variable that is that vector, i.e.

g = [0 0 1]
plot(...,'color',g,...)

MATLAB: Bar chart colors depending on their value

Try this:

req = [10,5,3];
data=[9,6,3];
hb1 = bar(req,0.5);
newXticklabel = {'label1','label2','label3'};
set(gca,'XtickLabel',newXticklabel);
hold on
hb2 = bar(data,0.25,'g');
barcomp = hb2.YData < hb1.YData;                                            % Logical Vector Identifying Bar
newbar = bar(hb2.XData(barcomp), hb2.YData(barcomp), hb2.BarWidth, 'r');    % Overplot In Red
hold off

Best Answer

Related Solutions

MATLAB: Graphing colors

MATLAB: Bar chart colors depending on their value

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