search for: i001n2

I don't understand which is the problem Could you help me please? Thanks in advance Marta > str(data_indiciN2) 'data.frame': 200 obs. of 36 variables: $ gruppo: Factor w/ 2 levels "0","1": 2 2 2 2 2 2 2 2 2 2 ... $ I001N2: num 19.32 8.22 28.35 7.24 14.7 ... $ I002N2: num 2.92 2.54 0.11 1.6 7.12 ... $ I003N2: num -22.362 -0.222 -19.291 -21.553 2.935 ... $ I004N2: num 100 100 100 100 9.48 ... $ I005N2: num 100 100 100 100 5.99 ... $ I006N2: num 3.688 2.975 17.717 3.694 0.278 ... $ I007N2: num 200 20...

...but it doesn't work with my dataset. I don't understand which is the problem Could you help me please? Thanks in advance Marta > str(data_indiciN2) 'data.frame': 200 obs. of 36 variables: $ gruppo: Factor w/ 2 levels "0","1": 2 2 2 2 2 2 2 2 2 2 ... $ I001N2: num 19.32 8.22 28.35 7.24 14.7 ... $ I002N2: num 2.92 2.54 0.11 1.6 7.12 ... $ I003N2: num -22.362 -0.222 -19.291 -21.553 2.935 ... $ I004N2: num 100 100 100 100 9.48 ... $ I005N2: num 100 100 100 100 5.99 ... $ I006N2: num 3.688 2.975 17.717 3.694 0.278 ... $ I007N2: num 200 200 200...