How to plot the content of a Structure without using a for loop?

I need to plot the content of a structure fiel:

Each row in the column Position is made by 2 elements (x and y). I need to plot all the rows at once on a scatter plot.

Using:

pop(1).Position(1)

I can access the first value of the first row/column. But I would like to plot all the column values without using a for loop.

Is that possible?

Thanks in advance!

Answer 1

[Ahmet Cecen]

Yes, in a way that is not apparent at first look, but very simple when you think about it:

[pop.Position]

I believe you can figure out the rest after this critical piece of information.

[David Franco]

It's not working...

For instance, if I use:

[pop(1).Position]

I get a 1x2 vector ([-0.4681 0.2270]) that is my (x,y) coordinates. If I plot this:

plot([pop(1).Position],'.r')

I get 2 points plotted...

If I try to plot all points at once:

plot([pop.Position(1)],[pop.Position(2)],'.r')

I get the error message:

Expected one output from a curly brace or dot indexing expression, but there were 50 results.

By the way, with your command ([pop.Position]) I get 50 answers, 1x2 each...

[Ahmet Cecen]

Its just:

[pop.Position]

Do that and check the answer. A simple reshape will solve your problem after that.

Edit: Fixed Braces.

[David Franco]

It worked with your suggestion plus buffer function:

a = [pop.Position];
b = buffer(a,2)';

Because using just [pop.Position] a get an 1xN vector. That's why it wasn't working.

Many thanks!