search for: ibdona

...ing a bit hard to me to get into the required concepts to deal with data. I am trying to get data from a MySQL database and plotting it with barplot. Here the code... library(RMySQL) con <- dbConnect(dbDriver ("MySQL"),host='localhost',username='root',dbname='ibdona') rs <- dbGetQuery (con,"select n,year from ibdona.library_location") dbDisconnect(con) Graph <- barplot(rs) And here the error I get... Error in barplot.default(rs) : 'height' must be a vector or a matrix paste(rs) gives me... [1] "c(307, 65, 2, 28, 3, 229, 81,...