List rows with specific columns with a specific value in R from dataset -


i have dataset called "flights" , attempting list rows have value of "escanaba, michigan" in column destination. show 5 columns , rows apply escanaba.

currently have...

flights[,c("flightdate","carrier","destination","destcityname","airtime")]

that works want, except shows rows.

how call out specific value column in dataset?

this pretty basic indexing question (see e.g here, first hit when googled "r indexing"); need construct logical vector true relevant rows.

flights[flights$destination=="escanaba, michigan",    c("flightdate","carrier","destination","destcityname","airtime")]

a prettier alternative interactive work (not entirely safe programmatic use):

subset(flights,destination=="escanaba, michigan",      select=c(flightdate,carrier,               destination,destcityname,airtime))

if want allow more 1 possible value of destination, try %in%


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