MATH 1280 - AY2019-T4_ Discussion Forum Unit 1.pdf

642019 math 1280 ay2019 t4 discussion forum unit 1

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6/4/2019 MATH 1280 - AY2019-T4: Discussion Forum Unit 1 37/46 71 words Permalink | Show parent | Reply Re: Discussion Forum Unit 1 by Siene Allen - Wednesday, 17 April 2019, 1:54 AM Hi Gianfranco, I followed the instructions and examples in the book and seemed to be able to produce the correct outputs for our lesson. Just be aware that it is very case sensitive and spaces seem to matter too if you are getting errors. Siene 45 words Permalink | Show parent | Reply Re: Discussion Forum Unit 1 by Gianfranco Pasqualin - Monday, 15 April 2019, 3:32 AM Greetings to all. The installation of the R program was smooth. I did not encounter any issues regarding it. I’ve also downloaded the ±les, following the instructions of right-clicking and not open them with Excel to avoid ruining them, I think I’ve done it successfully. The testing of the program also worked, ±rst I typed the command dir() and it showed me the ±les located in the directory. Secondly, the command read.csv('ex1.csv') showed me the content of the ±le selected. Thus far every step was working properly but, when I typed <colnames(ex.1) did not work. However, the command of re-naming the ±le to carrot worked. Then I tried again the “colnames” command and it worked the ±le was renamed to carrot, the same happened with “summary”. Lastly, I’ve followed Chapter one's instructions for "table", "plot" and it worked as well, I was really satis±ed that after several tries and error messages, my understanding of the language started to make sense, I’m happy about it. One question though, has anyone understood how come that after re-naming a ±le we can read its content by only typing
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6/4/2019 MATH 1280 - AY2019-T4: Discussion Forum Unit 1 38/46 the name in the console, like example “carrot”, but we could not do the same when the ±le was named “ex1.cvs”? also, to read the a ±le the name of the command is “read.csv”? 226 words Permalink | Show parent | Reply Re: Discussion Forum Unit 1 by Antonio Geloneze-Neto (Instructor) - Thursday, 18 April 2019, 5:51 AM Task performed satisfactorily. 3 words Permalink | Show parent | Reply Re: Discussion Forum Unit 1 by Abigail Hlavacek - Monday, 15 April 2019, 12:50 PM Installing R Program I have a mac on the Mojave version of macOS. I picked the instructions for the installation of the R program for the mac which I found to be straightforward. I followed the instructions outlined by Hoot (2018) to download the latest package from the CRAN website (p. 2). I did not use MacPorts or Homebrew to install R as these programs are typically for development. I downloaded the R-3.5.3.pkg which is the latest package available. After installation, I went to my Applications folder and created an Alias which is a desktop shortcut for ease of accessibility. I created the IntroStats folder and con±gured it as my working directory. Then, I placed the data ±les in this folder and executed the dir command. All initial tests successfully passed.
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