How can i run the "Hatemi-J Cointegration test" code with a .txt data file ?

User ForumHow can i run the "Hatemi-J Cointegration test" code with a .txt data file ?
toky_yamada asked 3 years ago

I have the program code of this test:

And a .txt file with time- series data included 1 dependable variable and 4 independable variables.

I'm just a new user of GAUSS. Can you give me the steps to do this ? Thanks very much


5 Answers
aptech Staff answered 3 years ago

The first step in running this code is changing the first line of the program:

load z[obs,var] =b22.txt;

to work for your data file. For testing purposes, you can download a data text file called test_data. This file has 10 rows and 4 columns. You can load it into a variable z in GAUSS like this:

load z[10,4] =test_data.txt;

Now after running this line, you can print z using the print command like this:

print z;

This will confirm that you have loaded it correctly. Then (assuming you want to use the test_data.txt file) you can change the first few lines of the file you linked to, to this:

obs = 10;
var = 4;
load z[obs,var]=test_data.txt;

//Assign the first column of 'z' to 'y'
y = z[1:obs,1];

//Assign the second, third and fourth
//columns of 'z' to 'x'
x = z[1:obs,2:var];

call main(y,x,4,2,12);

You said you are new to GAUSS, so if you need more detailed explanation of what is going on here or run into any trouble, please post your questions! We are happy to help.

toky_yamada answered 3 years ago

Thanks very much. But how can i load a data file into the code ? I don't know how to do this so i receive:  "(0) : error G0014 : '' : File not found"


aptech Staff answered 3 years ago

Take a look at this post here. Does that resolve your problem?

toky_yamada answered 3 years ago

i follow your guide with  the test_data file but i receive:

(0) : error G0121 : Matrix not positive definite
Currently active call: estimate
Stack trace:

What's happen ?  Could you give me an exactly code to run this test succesfully ?

Thanks for your help

aptech Staff answered 3 years ago

Try this data file example_data_ci.txt. Change this line:

load z[obs,var] =b22.txt;

to these three lines:

obs = 100;
var = 9;

load z[obs,var] =example_data_ci.txt;

This should work. Make sure that the file example_data_ci.txt is in your GAUSS current working directory.