user1658562
user1658562

Reputation: 1

Test and Train sets are not compatible

I m using weka and try to test my file but always got a popup window showing "Train and Test set are not compatible". I m using the csv file. All the attributes are same in both file.out of 30 attributes i divide them in two parts first 20 attributes as training set and rest 10 as test set. pls help me.

Upvotes: -1

Views: 410

Answers (1)

Atilla Ozgur
Atilla Ozgur

Reputation: 14701

Your attributes and their order must be the same in the both files. See following Weka Wiki post and stack overflow question 1 and question 2. Even a small difference may cause this error.

According to you their order may be same but according to weka they are not same. Convert them to arff format and try again. You will see that their arff headers are not same. See below example.

CSV file1

Feature A
true
false

CSV file2

Feature A
false
true

Representation of these CSV files as arff header are not SAME.Since their first occurrence change in files, their order in arff header change too.

Upvotes: 3

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