how to convert the type Real

happydust

I made a new attribute "week" which is generated by the attribute dayoftheyear/7
the type is then assigned by default as "real"
however, i need to group on "week" then the tool said it needs to be a nominal type to be group by. i then tried to convert the type real to nominal.  But only i could do was to convert real to integer.
Does anybody know what i can do?

Thanks!

Happydust

steffen

Did you try the operator "Numerical to Polynomial" ?

regards,

steffen