Select column dataframe index R -


i have data frame df this

1    2    3    4     b     c

where colnames {1,2,3,4}. select 1 of column of data frame according index set externally

colf <- as.numeric(mo) fmo <- df[[colf]]

many thanks,

treat data frame matrix , index using [row,column] notation, i.e.

fmo = df[,colf]

this column number colf.


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