Give
head(dataset)
and watch the name it has been given. Perhaps it would be something like:
dataset$data_transfer.Jingle.TCP.total_size_kb
gd047
2010-03-05 10:54:32
Give
head(dataset)
and watch the name it has been given. Perhaps it would be something like:
dataset$data_transfer.Jingle.TCP.total_size_kb
Two ways:
dataset[["data_transfer.Jingle/TCP.total_size_kb"]]
or
dataset$`data_transfer.Jingle/TCP.total_size_kb`