Getting syntax error when using for loop.

As title says; I am getting a syntax error when using the following code. The error points towards the d on "end"

F0=3.18;                      
m=0.0112;                     
k=31.2;                       
r1=0.22;                      
w0=sqrt(k/m); 
w=linspace(0,400,400);
r=linespace(0.11,1.1,10);
for i=1:10
  x0(:,i)=(F0/m)./(sqrt(((w0^2)-(w.^2))+((j*w*r(i)/m))));
end

[Steven Lord]

Copying and pasting this code into MATLAB (after correcting the "linespace" typo, which I assume should be linspace) I did not receive an error.

Can you show us the full text of the error message (all the text displayed in red) you receive when you run this code?

[Jack Upton]

It was a syntax error regarding the linspace and there was also a bracket error which I have now edited in my question.

[Jack Upton]

How would I now allocate a different colour for each potted data line?

[Walter Roberson]

h = plot(w, x0);

will automatically use a different color or line pattern for each of the 10 lines. There are 7 default colors, so the last 3 would end up re-using the colors of the first 3, but with a different line style.

You can assign specific colors to the lines by using,

set(h(1), 'Color', [.3 .9 .2]);
set(h(2), 'Color', 'g');
set(h(3), 'Color', [1, 1/3, 7/10]);

and so on. If you have an array of color values, you can create a loop. For example,

NL = length(h);
cmap = copper( NL );
for K = 1 : NL
    set(h(K), 'Color', cmap(K, :))
end

[Jack Upton]

Incredible, thank you!

Answer 1

[madhan ravi]

r = linspace... % also consider preallocating x0

[Jack Upton]

What do you mean pre-allocating x0,

sorry Im rather new to this.

[Walter Roberson]

Before the loop,

x0 = zeros(length(w), length(r));