Responses should be copied to r-help using ReplyAll. You are still sending html formatted emails. If you are using Microsoft Outlook, click the Format Text tab and select “Aa Plain Text”. No one has asked you to reveal the data set, only to create one with a similar structure. Is the data I sent reasonably close? What should it look like after it is transformed?
David C From: nguy2952 University of Minnesota <nguy2...@umn.edu> Sent: Friday, June 1, 2018 1:57 PM To: David L Carlson <dcarl...@tamu.edu> Subject: Re: [R] Regroup and create new dataframe Hi, This is not an assignment for school. This is a project at WORK. I am not allowed to reveal the dataset. Thanks! On Fri, Jun 1, 2018 at 1:55 PM, David L Carlson <mailto:dcarl...@tamu.edu> wrote: Your question raises several issues. First, we do not do homework here, so if this is an assignment, you will not get much help. Second, you need to send your emails as plain text, not html. Third, you need to provide a reproducible example and send your data using dput() so that we can follow what you have tried so far. For example, here's a data set that resembles what you have described: set.seed(42) Tape <- data.frame(Year=2011:2015, Product=rep(c("Target", "3M", "Avery"), each=5), Sales=sample(1000:2000, 15), Region=rep(c("North", "South", "West"), each=5), stringsAsFactors=FALSE) dput(Tape) structure(list(Year = c(2011L, 2012L, 2013L, 2014L, 2015L, 2011L, 2012L, 2013L, 2014L, 2015L, 2011L, 2012L, 2013L, 2014L, 2015L ), Product = c("Target", "Target", "Target", "Target", "Target", "3M", "3M", "3M", "3M", "3M", "Avery", "Avery", "Avery", "Avery", "Avery"), Sales = c(1915L, 1937L, 1285L, 1828L, 1639L, 1517L, 1732L, 1133L, 1652L, 1699L, 1453L, 1711L, 1924L, 1252L, 1456L ), Region = c("North", "North", "North", "North", "North", "South", "South", "South", "South", "South", "West", "West", "West", "West", "West")), .Names = c("Year", "Product", "Sales", "Region"), row.names = c(NA, -15L), class = "data.frame") It is not clear what you want in your new data frame. This one has 5 years of data for each tape brand and you seem to want one row for each tape brand? Tables created in html and then sent to a plain text mailing list can be dramatically different from the original format. It is not clear that you cannot answer your questions from the data as presented here. Look at the results of unlist(split(Tape, Tape$Product)). You should see that this is nowhere near what you described. ---------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77843-4352 -----Original Message----- From: R-help <mailto:r-help-boun...@r-project.org> On Behalf Of nguy2952 University of Minnesota Sent: Friday, June 1, 2018 10:54 AM To: mailto:r-help@r-project.org Subject: [R] Regroup and create new dataframe Hello folks, I have a big project to work on and the dataset is classified so I am just going to use my own example so everyone can understand what I am targeting. Let's take Target as an example: We consider three brands of tape: Target brand, 3M and Avery. The original data frame has 4 columns: Year of Record, Product_Name(which contains three brands of tape), Sales, and Region. I want to create a new data frame that looks like this: Year of Record Sales Region Target Brand 3M Avery Here is what I did. 1. I split the original data frame which I called data1: X = split(data1, Product_name) 2. Unlist X X1 = unlist(X) 3. Create a new data frame new_df = as.data.frame(X1) But, when I used the command View(new_df), I had only two columns: The left one is similar to TargetBrand.Sales, etc. and the right one is just "X1" I did not achieve what I wanted. **A potentially big question from readers:* Why am I doing this? *Answer:* I want to run a multiple regression model later to see among different regions, what the sales look like for these three brands of tape: *Does Mid-west buy more house brand than East Coast?* or *Does region really affect the sales? Are Mid-West's purchases similar to those of East Coast and West Coast?* I need help. Please give me guidance. Sincerely, Hugh N [[alternative HTML version deleted]] ______________________________________________ mailto:R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://urldefense.proofpoint.com/v2/url?u=https-3A__stat.ethz.ch_mailman_listinfo_r-2Dhelp&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=veMGHMCNZShld-KX-bIj4jRE_tP9ojUvB_Lqp0ieSdk&m=LnVfoBf5smekeCFlal5rmpELFRoDrB3H3ij_lZJRy0w&s=nPZ3F6nROsY3KM0z7y6ixAAYLjMGVhEZyuXMi3bg0rY&e= PLEASE do read the posting guide https://urldefense.proofpoint.com/v2/url?u=http-3A__www.R-2Dproject.org_posting-2Dguide.html&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=veMGHMCNZShld-KX-bIj4jRE_tP9ojUvB_Lqp0ieSdk&m=LnVfoBf5smekeCFlal5rmpELFRoDrB3H3ij_lZJRy0w&s=XNpVm_6i2GLFLk3FzpM9T15aezUet1BA0FlapuVXdmc&e= and provide commented, minimal, self-contained, reproducible code. ______________________________________________ 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.
