how to adjust x-axis in plot

i want x-axis to be

30 is starting point

30 2 4 6 8 10 .... 30 2 4 6 8 10 .... 30 2 .....

like a once a month loop

Answer 1

[Arif Hoq]

try repmat function:

A=[30 2 4 6 8 10];
no_of_rows=1;
no_of_repeated_times=3;
B=repmat(A,no_of_rows,no_of_repeated_times)

B = 1×18

30 2 4 6 8 10 30 2 4 6 8 10 30 2 4 6 8 10

[peter huang]

How to render it on the axes of the drawing?

[Arif Hoq]

I dont get you. can you please explain more ? or any expected graph ?

[Arif Hoq]

I guess you are talking about xtick

A=[30 2 4 6 8 10];
no_of_rows=1;
no_of_repeated_times=3;
B=repmat(A,no_of_rows,no_of_repeated_times);

% plot anything
x = 0:5:50*pi;
y = sin(x);
plot(x,y)
xticklabels(B)

Answer 2

[Les Beckham]

I think this is what you are asking for. Note that this isn't going to be very pretty if you have more than a couple of months to plot. And, of course, it doesn't account for varying numbers of days in a month.

plot(1:60)
xticks(1:2:60)
xticklabels(repmat([30 2:2:28], 1, 2))