Questions on "Ordinary kriging"

hello,

I have some questions about a matlab function. I found the following function

https://www.mathworks.com/matlabcentral/fileexchange/29025-ordinary-kriging

I would like to use it in order to create variogram and make interpolation of my data. The problem is that I do not know what to put in vstruct .

How should I use these command in order to take these results as in the picture?

Could you please help me?

[Jan]

The documentation tells:

vstruct   structure array with variogram information as returned
          variogramfit (forth output argument)

[Ivan Mich]

Undefined function or variable 'vstruct'.

That command window shows me and I do not know what to do in order to solve it..

Could you please help me?

Answer 1

[John D'Errico]

As Jan told you, vstruct is provided by variogramfit. Where can you find that code? You need to download variogramfit, also provided by that author.

https://www.mathworks.com/matlabcentral/fileexchange/25948-variogramfit?s_tid=srchtitle

READ THE HELP. It tells you.