Say I have a list:
[[1]] "I like google"
[[2]] "Hi Google google"
[[3]] "what's up"
and they are tweets. And I want to find out how many tweets mention google
(the answer should be 2).
If I string split and unlist them, then I would get the answer of 3. How do
I make sure I get just 2?
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Thank you all very much!
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