How to plot with initially undefined number of lines in a .m file

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');

Answer 1

[Sean de Wolski]

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.

Answer 2

[Oleg Komarov]

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.

Answer 3

[Megan]

thank you both! I'll test those out