New data format supporting mixed variables (continuous/discrete) and interventional data

[felixleopoldo]

A better data format that supports mixed and interventional data.

First row: labels
Second row: indicates that the variable is (c)ontinuous or the number of discrete (ordinal) categories (levels).

The right part of the dataset indicates the intervention (t)argets.

a,b,c,d,a,b,c,d
c,c,2,3,t,t,t,t
2.7,7.4,1,3,0,0,0,0
5.4,3.9,2,1,0,1,0