Build the AHP file from the result of a survey

[gluc]

Build the AHP file from the result of a survey

[gluc]

Hi Edouard,

Unfortunately I do not have such a script. Doing it generically for all possible problems might be difficult.

But if you have a specific problem at hand, it's certainly feasible.

I can think of the following possibilities:

1. you can do what you suggest, i.e. create the YAML file programmatically from the responses collected. The definition of the YAML file is here: https://cran.r-project.org/web/packages/ahp/vignettes/file-format.html
2. you can create the ahp data.tree structure directly. This is easier than it sounds, at least once you have read the data.tree documentation. Starting points to understand the ahp structure are the Load process, and the ahp:::GetPreferences_2 function

Personally, I would probably go for 2, as it's probably quicker to implement. Either way, depending on the structure of your input data, and the complexity of your problem, this might be a bit of work.

Good luck!

Christoph

[gluc]

I was thinking of a third way, some sort of hybrid:

1. keep simple structure of AHP problem in file, with default preferences
2. manipulate preferences in code, as per report

This gist illustrates how this works: https://gist.github.com/gluc/b03520be946a6d8dcff7b014ae2cfbc7

[Edouard-Legoupil]

Dear Christoph,

Thanks for your reply.. I went for option 1 as I am looking at building a work-flow from the expert consultation survey till the compilation of results...

I have made various test: my script is here: https://github.com/unhcr-mena/analytic-hierarchy-process/blob/gh-pages/code/2-build-hierarchy.R

as of now, it creates a YAML file: https://github.com/unhcr-mena/analytic-hierarchy-process/blob/gh-pages/data/4-write-test-final.ahp (still need to take out the single quote wrapping)

I tried to tweak this file here:

• Manually removing the single quote from the file
• then understood (or believed to understand) that I need to define a pairwiseFunction within the children of the Goal in order to process the pairwise define within the preferences../
  Result is here: https://github.com/unhcr-mena/analytic-hierarchy-process/blob/gh-pages/data/test.ahp

It's not working... Any hint?

Thanks a lot
Edouard