Using different line style, colour, and legend

Hi, I have two lines in one graph, I am trying to set different line style, colour and legend of each line.

The following are the code I have so far.

Please give guidance. Very much appreciated.

X = Altitude;
Y = ROC_22K;
Z = ROC_26K;

plot(X([1:42]),Y([1:42]),X([1:42]),Z([1:42]),'Linestyle', '-', 'linewidth', 1.0);

xlabel('Altitude (m)','FontSize',14, 'fontweight', 'bold', 'color', '[0 0 1]')
ylabel('ROC (m/s)','FontSize',14, 'fontweight', 'bold', 'color', '[0 0 1]')
title('Rate of Climb Vs Altitude','FontSize',16, 'fontweight', 'bold', 'color', '#000000')
legend('Rate of Climb','Location','Bestoutside')
grid on
grid minor

Answer 1

[Image Analyst]

Looks like you know how to use MATLAB. About all I might offer is to use the 'Color' option in plot to specify specific colors. Or you can look at colororder to set up a sequence of default colors to use if you don't use the color option.

If you want different linestyles, I'd plot them separately:

% Plot Y vs. X with one linestyle.
plot(X([1:42]),Y([1:42]), 'Color', 'r', 'Linestyle', '-.', 'linewidth', 1.0); % first linestyle
hold on; % Don't blow away prior plot.
% Plot Z vs. X with a different color and linestyle.
plot(X([1:42]),Z([1:42]), 'Color', 'b', 'Linestyle', '--', 'linewidth', 2.0); % Different linestyle
help colororder

 COLORORDER View and set current color order
    COLORORDER(colors) sets the color order for the current figure. If you
    set the color order for the figure, then axes in the figure will use
    the same color order. Specify the color order as a three-column matrix
    of RGB triplets, the keyword 'default', a cell-array of character
    vectors, or a string array.
 
    COLORORDER(name) sets the color order for the current figure
    using the predefined set of colors specified by name. Valid names
    are: gem, gem12, glow, glow12, dye, earth, meadow, reef, sail.
 
    COLORORDER(target, ...) sets the color order for the figure or axes
    specified by target, instead of for the current figure. When target is
    a figure, COLORORDER sets the DefaultAxesColorOrder on the figure. When
    target is an axes, COLORORDER sets the ColorOrder property of the axes.
 
    colors = COLORORDER returns the color order of the current figure as a
    three-column matrix of RGB triplets.
 
    colors = COLORORDER(target) returns the color order for the figure or
    axes specified by target. When target is a figure, COLORORDER returns
    the DefaultAxesColorOrder on the figure. When target is an axes,
    COLORORDER returns the value of the ColorOrder property of the axes.
 
    See also COLORMAP

    Documentation for colororder
       doc colororder

[Ke Yeun Yong]

It works perfectly, thank you very much :)