griddedInterpolant .m code file
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I am trying to create a program on python based on one i made on MATLAB.
I used griddedInterpolant:
F = griddedInterpolant(X,Y,Z,V,method,extrap)
but when i am trying to open the .m file in order to see the exact process and made the same on python i only get a file with comments. Where can i see the exact steps MATLAB uses for this function?
6 个评论
KSSV
2016-9-28
The .m file shows only help and about the code what it does. When you call the function, I guess it runs on some c based code.
Christos Zoupis-Schoinas
2016-9-28
KSSV
2016-9-28
I am not sure, but I think it is not possible to have a look inside such functions. I would recommend to go through any Numerical Method book and do it.
José-Luis
2016-9-28
It means that gridddInterpolant() is a built in function and that you cannot access the source code. Why? Either it is not actually written in Matlab or the good people at TMW are feeling propietary. Might be other reasons.
What algorithms do they use? Sometimes it is listed in the documentation. If not, you could always try asking them.
Christos Zoupis-Schoinas
2016-9-29
KSSV
2016-9-29
check numpy, scipy module in python. It has the code you are looking for.
采纳的回答
KSSV
2016-9-29
0 个投票
I suggest you to pick a numerical method book and read it......this interpolation is not that tough to implement. Such scattered interpolations depend on nearest neighboring points. Algorithm:
1. Run a loop for every point of the new grid
2. Get the neighboring points of the i'th point in the old grid.
3. Do the average of the values. (Average many options are avl.)
4. Assign the average value to the i'th point.
更多回答（1 个）
Walter Roberson
2016-9-29
1 个投票
You can switch to Delaunay triangulation, which in turn was formerly implemented by calling convex hull that was based upon Qhull
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