Howdy y'all,
I am looking to use the match function to match a data attribute to another
data frame but i need it to do so on two criteria to ensure an appropriate
match. The following matches incorrectly. I know the example looks
pointless but its just an example. Perhaps there is another way of doing
this? Thanks
#Sample Data
Props<-c("p754921","p754921" ,"p754921","p75506" ,"p75506"
,"p75506","p75506"
,"p75508","p75508","p75508","p75508","p75508")
TAZ<-c(38,37,37,171,171,282,171,46,46,169,169,169)
Area<-c(109828.04, 128134.71, 46469.57, 37160.21,
40080.50,344679.66,16972.28,
342309.558, 260906.870, 17014.659, 7285.706, 10936.316)
#Creat 1st dataframe
TazProperties..<-data.frame(Props,TAZ,Area)
#Sample Data
Props2<-c("p754921","p754921","p754921","p75506" ,"p75506"
,"p75506","p75506" ,"p75508","p75508","p75508","p75508","p75508")
TAZ2<-c(38,37,37,171,171,282,171,46,46,169,169,169)
#Create 2nd data frame
TazProperties2..<-data.frame(Props2,TAZ2)
#match on prop and return area to data frame
TazProperties2..$Area<-TazProperties..$Area[match(TazProperties..$Props,TazProperties..$Props)]
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