Create an unabiguous label string
If facetting over a single variable, label_value is
used, if two or more variables then label_both is used.
- Parameters
- label_info
series
Series whose values will be returned. It must have
an index made of variable names
- multi_linebool
Whether to place each variable on a separate line
- sep
str
Separation between variable name and value
- Returns
- out
str
Contatenated label values (or pairs of variable names
& values)