how can I read a csv file as a matrix

[Suhad Faisal]

hello 

how can I read a csv file  or the species agents as a matrix, and deal with its data as data cell in matrix referenced by (i,j) ? 

cheers

suhad

[Arnaud Grignard]

Dear Suhad,

Before to ask this question, did you check the documentation of Gama and the already existing model in the library?

This model which is in Features/Data Importation is exactly doing what you want.

/**

 *  CSVfileloading

 *  Author: administrateur

 *  Description: Shows how to import a CSV file and use it

 */

model CSVfileloading

global {

file my_csv_file <- csv_file("../includes/iris.csv",",");

init {

matrix data <- matrix(my_csv_file);

loop i from: 1 to: data.rows -1{

loop j from: 0 to: data.columns -1{

write "data rows:"+ i +" colums:" + j + " = " + data[j,i];

}

}

}

}

experiment main type: gui{

}

Arnaud

On Wed, Jul 2, 2014 at 6:32 PM, Suhad Faisal <suha...@gmail.com> wrote:

hello 

how can I read a csv file as a matrix, and dell with its data as data cell in matrix referenced by (i,j) ? 

cheers

suhad

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[Suhad Faisal]

thank you very much , but as you know the reading had been forgotten after while, so just the practice is the key of all technical problems , that's why I'm asking the professional, cause you can give the useful point directly .

best regards 

suhad

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[Benoit Gaudou]

Hi,

I agree with the fact that practice is the key for learning, but also try-and-error and own research.

You have several tools for your research:

- the library of models (and in particular Features contain models sorted by themes)

- in GAMA itself, you have research functions that allow you to find relevant information in the library of models

- in the doc you have a sketch of index : https://code.google.com/p/gama-platform/wiki/G__Index

- and the whole doc

Benoit

[Suhad Faisal]

thank you , I will follow your advice, wishing to discuss with the experts continuously

cheers

suhad