How to put a constant multiple along y-axis in the plot window?

I want to plot a 2D graph with two-vectors which I do like this:

 plot(x,y)

However, in the plot window, I want the y-axis to be shown to be multiplied by a constant factor e.g. 1000. So, it just plots x versus y but at the top of y-axis, puts a text "x 1000".

Answer 1

[Azzi Abdelmalek]

%Example

t=0:0.1:10;
y=sin(t);
plot(t,y)
cst=1000
old_Yticks=get(gca,'ytick')
new_Yticklabel=arrayfun(@num2str,old_Yticks*cst,'un',0);
set(gca,'yticklabel',new_Yticklabel)

Answer 2

[Muhammad]

I don't want the y-axis to be changed but just the whole axis is shown to be multipled with 1000 at the end of axis label.