comp.soft-sys.matlab - The MathWorks calculation and visualization package.
I'm adding points from different experiments to a plot and I would like to color them differently for each experiment. The problem is that the number of experiments varies. Therefore I need to make a color table that has n different colors, where n is the number of experiments. I realize that I can assign a color in a plot by using, e,.g: plot( ...,'markerfacecolor',[a b c]) and my question is how do I vary a,b,c so that I get a (rainbow) spectrum of colors. I tried: for i=1:n plot( [data from experiment], markerfacecolor',[1 1 1]/i) and this resulted in shades of gray, which is difficult to view if there are more than 3-4 experiments.
On a plot with a legend, how can I get the markers in the legend to be a different size from the one in the plots that the legend is pointing to? I want to do this since my plot markers are small due to the large amount of data, but then they don't show up very well in the legend. Example code: x=[1:1:10]; figure; hplot = plot(x,x,'.k'); h_for_legend = hplot; set(hplot,'MarkerSize',2); % small size marker set(h_for_legend,'MarkerSize',12); % attempt to get larger marker for legend legend_string = 'my data'; legend(h_for_legend,legend_string); I was hoping that the markers on the plot (handle hplot) would be size 2, and the marker in the legend (handle h_for_legend) would be size 12 so it would be visible. A single size 2 marker in the legend is too small. But the datapoints in the plot inheirit the marker size that I gave the legend (12). How can I get them to be different in the plot vs. the legend (and change other attributes as well if I want)? Thanks very much.
Hi. Does anyone know how to put separate legends to multiple scatter plots? e.g. x=1:10; y=11:20; z=-y; hold on; scatter(x,y,'or') scatter(x,z,'+b') legend('y-name','z-name') hold off This example incorrectly puts two legends 'y-name' and 'z-name' to one series y. Thanks a lot.
Hi all, I'm making a bubble plot using the scatter function in Matlab to show the density of fish schools in a map of lat and long coordinates. That is, the more dense the fish school, the larger the circle on the scatter plot. I can't figure out how to get a legend on the graph that shows what the different sized circles represent. When I add the legend, it has all the circles as being the same size. Any ideas? Thanks!