Metric
Your score is the percentage of patients you correctly predict. This is known simply as "accuracy”.

Submission File Format
You should submit a CSV file with exactly 218 entries plus a header row
(as per the "heart\_failure\_test.csv" which will be used for your final submission). 
Your submission will show an error if you have extra columns (beyond Id and Prediction) or rows.

The file should have exactly 2 columns:

Id, Prediction (contains your binary predictions: 1 for positive of having a heart attack, 0 for negative)

Id,HeartDisease

1,0

2,1

3,0

Etc.

You can download an example submission file ("sample_submission.csv") on the Data page.