hey There I've been trying to match 2 lists in R I have an excel sheet containing all the 51states of amerika devided by zipcode. the columns are : zip,city, state, latitude,longitude,count so now I want R to make a new table that I could use to draw a map. The table should consist the name of the state plus the count. Like I said I have all the zipcodes and the count for the zipcodes, so now I would like to calculate the numbers from the zipcodes of one state. .can anyone help me?I've been trying and seraching trough other blogs and pages but I fail to find something that helps me. Thanks a lot
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