Question

As the help document of Matlab saying, we can use gplot in such a form as

gplot(A,Coordinates,LineSpec)

But when I try to modify the linewidth of the line and use a code like

gplot(A,Coordinates,'linewidth',2)

an error occurred and the error information saying that Error using gplot:
Too many input arguments.

I was wondering if their is anything wrong with my code.

Answer 1

Building on the answer of PearsonArtPhoto, the lines can be modified if they are explicitly found using findall(gcf,'type','line').

This is a working example:

k = 1:30;
[B,XY] = bucky;
gplot(B(k,k),XY(k,:),'-*')
set(findall(gcf,'type','line'),'LineWidth',5)
axis square

which produces the following figure