How to plot with initially undefined number of lines in a .m file
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I am trying to make a general .m file to use for a series of graphs I will need to make - some with 3 lines, some with 2, some with more. Is there a way to code it so that I don't have to use different .m files each time I want to use a different number of variables? for example, the code below has X/Y 1 2 and 3, but can I make it so that it can be used for only 2 x and y data sets, or for more, and still have the correct legend entries for the number of lines present?
function graphPro(X1, Y1, X2, Y2, X3, Y3, legend1, legend2, legend3,xaxis, yaxis, charttitle)
%CREATEFIGURE(X1,Y1,X2,Y2,X3,Y3)
% X1: x-data for 1st detector/energy/field size
% Y1: y-data for 1st detector/energy/field size
% X2: x-data for 2nd detector/energy/field size
% Y2: y-data for 2nd detector/energy/field size
% X3: x-data for 3rd detector/energy/field size
% Y3: y-data for 3rd detector/energy/field size
% legend 1: legend name for x1/y1
% legend 2: legend name for x2/y2
% legend 3: legend name for x3/y3
% xaxis: label and units of x-axis
% yaxis: label and units of y-axis
% charttitle: title of graph
% Create figure
figure1 = figure;
% Create axes
axes1 = axes('Parent',figure1);
hold(axes1,'all');
% Create plot
plot(X1,Y1,'Parent',axes1,'Color',[1 0 0],'DisplayName',legend1,'LineStyle','-');
% Create plot
plot(X2,Y2,'Parent',axes1,'Color',[0 0 1],'DisplayName',legend2,'LineStyle','-');
% Create plot
plot(X3,Y3,'Parent',axes1,'Color',[0 0 0],'DisplayName',legend3,'LineStyle','-');
%Edit space
grid on
% Create xlabel
xlabel(xaxis,'FontSize',10);
% Create ylabel
ylabel(yaxis,'FontSize',10);
% Create title
title(charttitle,'FontSize',14);
% Create legend
legend(axes1,'show','Location','best');
回答（3 个）
Sean de Wolski
2011-5-18
doc varargin
doc nargin
Use one of the above to determine how many inputs there are, then use a for-loop to create that many figures etc.
Oleg Komarov
2011-5-18
0 个投票
Yes you can make it dynamic with:
myPlot(X,Y,legend,axis,title)
For say n graphs:
- X,Y are m by n double arrays, or if not of the same length 1 by n cell array containing a series per cell
- legend,axis,title containing all the properties in n cells.
You could then loop for the number of cell and create n graphs.
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