Datavyu places certain restrictions on code and column names:
Column names should not include periods.
Column names must begin with a letter
The underscore is the only permitted special character
Datavyu also restricts certain names, making them unavailable for use. The following names cannot be used as a column or code name:
-several.words.separated.by.periods -1stCharacterIsANumber -i_really_really_mean_it!!!!!!