r - Delete rows in Data table -

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i have twitter dataset , delete whole row if word lee in tweet. have code, still same amount of entries. 

dt.cleaned <- dt.tweets.filtered[body != "lee",]

what code need in order remove whole row if word lee in body?

thank much!!

we can use grep

dt.cleaned <- dt.tweets.filtered[!grepl("lee", body)]

assuming 'dt.tweets.filtered' data.table object. if data.frame, either convert data.table setdt i.e. setdt(dt.tweets.filtered) or use base r methods,

dt.cleaned <- dt.tweets.filtered[!grepl("lee", body), ]

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