`compute_metrics_reloaded.py` - consider other output type than CSV

[valosekj]

The compute_metrics_reloaded.py script currently outputs the segmentation performance metrics into CSV files:

utilities/compute_metrics/compute_metrics_reloaded.py

Lines 254 to 262 in 1e72f5d

	# save as CSV
	fname_output_csv = os.path.abspath(args.output)
	df.to_csv(fname_output_csv, index=False)
	print(f'Saved metrics to {fname_output_csv}.')
	# save as CSV
	fname_output_csv_mean = os.path.abspath(args.output.replace('.csv', '_mean.csv'))
	df_mean.to_csv(fname_output_csv_mean, index=False)
	print(f'Saved mean and standard deviation of metrics across all subjects to {fname_output_csv_mean}.')

The CSV files might be tricky to read in the terminal (due to CSV formatting).

A possible solution is to use a workaround such as function column_csv { column -t -s $';' ${1} }, followed by column_csv <file.csv>. But this does not work well if the CSV file has a lot of columns.

--> we can explore other ways how to save the metrics, such as pandas.DataFrame.to_markdown.

[valosekj]

Note that the script has been moved: ivadomed/MetricsReloaded#5