I have three columns named i1,i2 and i3. Each of these columns is a vector of equal length. Each of them contain 1 and -1. I want to have an output column where the value should be
- 1 if all the entires in i1,i2 and i3 is 1
- -1 if all the entries in i1,i2 and i3 is -1
- 0 for any other valuesPlease suggest the way forward.
