Adding back context which was omitted by this Nabble user who still does not understand the mailing list conventions:
> On May 27, 2015, at 2:28 AM, Shivi82 wrote: > >> Hello All, >> I need help on creating a histogram for one of my data. The data is as below >> (sample): >> MFST_WT Hours PROCESS Month Weekday Day of the Month >> 6,828 13 INBOUND Mar Fri 13 >> 2,504 16 INBOUND Mar Fri 27 >> 20 16 INBOUND Mar Fri 27 >> 10,262 16 INBOUND Mar Fri 27 >> 2,500 17 INBOUND Mar Fri 13 >> 3,938 16 INBOUND Feb Thu 26 >> 798 10 INBOUND Feb Sat 14 >> 5,439 15 INBOUND Feb Mon 16 >> > D.Winsemius wrote: > What I'm seeing here is the likelihood that the data object has been input > incorrectly (or is a mess in the original file?) There appear to be commas in > what would presumably be a numeric column and a column name with spaces in > it. There is also misregistration of some lines of data possible with > tab-characters that were eaten by Nabble's interface. If you want help under > these circumstances you should either respond with the first 20 lines of the > original data file posted through a mail-client bypassing Nabble or post > dput( head(objname, 20)) On May 28, 2015, at 6:13 AM, Shivi82 wrote: > HI David, > > So if I understand from your post below, when we import a file in R- we need > to make sure that the variable names do not have any space nor they should > be in special characters or not in comma format. Well .... perhaps. I asked to see the first several lines of the data. If it really were a csv file, then there should not have been any commas in the first column when the R data-object was printed. Any spaces in the header row should have been converted to periods. That's what the `make.names` function does when it encounters spaces or special characters. -- David. > Please correct me I am wrong. > > Now I have changed the file to a new file as RData.csv file and now when I > use the below code it gives me an error > graph<- read.csv("RData.csv", header = TRUE) > MonthlyWeight<-by(RData$Weight,names.arg = RData$Month,sum) > > The error is : Error in by(RData$Weight, names.arg = RData$Month, sum) : > object 'RData' not found. Whereas I checked using "getwd()" this file is > saved in the working directory. > Please suggest. > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Help-on-Histogram-Barplot-tp4707739p4707839.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.