## Evaluation

Submissions will be evaluated using [Mean Absolute Error (MAE)](https://en.wikipedia.org/wiki/Mean_absolute_error),

![MAE](https://raw.githubusercontent.com/visipedia/iwildcam_comp/master/assets/MAE.png)

where each `x_i` represents the predicted target, `y_i` represents the ground truth, and `n` is the number of rows in the test set.

## Submission File
For each `id` in the test set, you must predict the target `Age`. The file should contain a header and have the following format:

    id,yield
    74051,10.2
    74051,3.6
    74051,11.9
    etc.