I have a big dataset. I want to create a new factor variable with certain conditions based on two existing numeric variables. Existing variables: indinc (range: 0 to 16), groupinc (range -3 to 5) Conditional values that 'incorp' will take: If groupinc = 5, then ‘cons’; If groupinc is -3 : -2, AND indinc < 9, then ‘ethnat’; If groupinc is -2 : -1, AND indinc > 8, then ‘civic’; If groupinc is 1 : 4, AND indinc > 8, then ‘libmul’; The rest of the values should be coded as NA. #here is my code after attaching the data (4408 is the number of observations):# incorp <- for (i in 1:4408) { if (groupinc[i] == 5) { incorp[i] = 'cons' } else if ((groupinc[i] == -3:-2) & (indinc[i] < 9)) { incorp[i] = 'ethnat' } else if ((groupinc[i] == 1:4) & (indinc[i] > 8)) { incorp[i] = 'libmul' } else if ((groupinc[i] == -2:-1) & (indinc[i] > 8)) { incorp[i] = 'civic' } else = NA } #error message# Error: unexpected '=' in: " incorp[i] = 'civic' } else ="
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