How to plot point-wise figures from existing one.

It's a bit confusing. In your code:

• The bit of code you've posted in your previous reply doesn't exist so I had to add it manually to see how it plots
• But it doesn't plot because variable w doesn't exist anymore - what is a new w then?
• Also you've got variable z which is a vector but you're trying to access is as if it was a cell
• Therefore, please specify: which variables do I need to plot against each other to obtain the plot you attached to this question?

Other notes:

• I recommend moving your figure(1) declaration outside the for loop