Why am I unable to set the 'Color' property for multiple line plots in MATLAB using a single call to the PLOT function?

I am trying to set the 'Color' property for multiple line plots in MATLAB using a single call to the PLOT function. However, when I try to do this using the following syntax, I get an error message.

plot(1:100,1:100,'color',[.5 .5 .5],1:100,1:100,'color',[.2  .2 .2])

 ??? Error using ==> plot

 Vectors must be the same lengths.

Answer 1

[MathWorks Support Team]

The ability to set the 'Color' property for multiple line plots in MATLAB using a single call to the PLOT function is not available in MATLAB.

To work around this issue, generate the plots individually, specifying the desired 'Color' property value as shown below:

hold on

plot(1:100,1:100,'Color',[.5 .5 .5]) 

plot(100:-1:1,1:100,'Color',[.2 .2 .2])

Alternatively you can set the 'Color' property with the SET function as follows:

h = plot(1:100,1:100, 1:100, 1:100);

set(h(1), 'color', [.5 .5 .5]);

set(h(2), 'color', [.2 .2 .2]);

[Rub Ron]

what is "h" has large number of elements, how to assign them all at once? something like this:

set(h(:), 'color', matrixOfColors)