Resize plot merged with an imagesc figure

Hi all,

My code generates two different figures one an matrix using imagesc which is resized using the part of code

 i  = magic(10)
 imagesc(i)
 imagesc(10:10:100, 10:10:100,i)

by Doug Hull

The other figure is a plot lineseries type generated from two vectors.

I obtain this figure

https://www.dropbox.com/s/ei4f17kjgspw48l/test3.jpg

And I would like to get this example:

https://www.dropbox.com/s/r85n0o2k5ep8njj/2%2C5_0%2C8_0%2C05_Monopulse_20130304AB_SuB_2%2C5m_42cm_30-31%2C5.png

This is my part of code related with plot

 plot(x,y,'-rd')

Could somebody help me?

Thanks a lot.

Raúl.