In Class Exercise – Clustering in R
Here is the exercise.
And here are the supporting files. Remember, download them to your computer by right-clicking and selecting Save As…
- The R script you’ll need: Clustering.r
- The data file you’ll need: Census2000.csv
Weekly Question #5
Leave your response as a comment on this post by the beginning of class on April 11, 2016. Remember, it only needs to be three or four sentences. For these weekly questions, I’m mainly interested in your opinions, not so much particular “facts” from the class! If you sign in using your AccessNet ID and password you won’t have to fill in the name, email and captcha fields when you leave your comment.
Answer one of the two questions below (not both):
- Name and describe a business question that you could answer using a decision tree. What data would you collect to perform the analysis? Don’t use an example we’ve covered in class.
- What advice would you give someone regarding how to select the right predictor variables for a decision tree analysis?
Assignment #7 – Decision Trees in R
Here is the assignment and Assignment #7 – Decision Trees in R ANSWER SHEET (in Word format).
Here is the data file you’ll need [BankLoan.csv].
Note: If you try to open this file in Excel, you’ll get two error dialogs. The file is fine. Just click “Yes” and “OK” and the file will open.
Another note: Make sure you’ve included ALL the attachments (check the assignment instructions) as separate files or you will not receive credit for the assignment. Please do not send me a ZIP or RAR file!
This assignment is due on 4/11 by the start of class.
In Class Exercise #12 – Decision Trees in R
Here is In-Class Exercise #12 – Decision Tree Induction Using R.
And here are the supporting files. Remember, download them to your computer by right-clicking and selecting Save As…
- The R script you’ll need: dTree.r
- The data file you’ll need: OrganicsPurchase.csv
- Note: If you try to open this file in Excel, you’ll get two error dialogs. The file is fine. Just click “Yes” and “OK” and the file will open.
Watch this R & R Studio Introduction before 3/28/16!!!
As we discussed, you are responsible for watching the Intro to R Mix that can be found here: https://mix.office.com/watch/1vfw1it1t0rjc
You should watch this mix and download R & R Studio to your PC before class on Monday, 3/28/16 as we will be jumping right into the In Class Exercise.
Here are the files I reference in the Mix, in case you want to do a little practicing: 2009BaseballTeamStats BaseballAnalysis.r
Assignment #6: Getting Familiar with R/RStudio
Assignment #6
Here is the data file you’ll need [OnTimeAirport-Jan14.csv].
Please email your assignment by the start of class on April 1, 2016.
In Class Exercise #10 – Getting Familiar with R & R Studio
Here is the exercise.
And here are the supporting files. When you download them to your computer, I would suggest creating a special folder to hold your R files. You can download easiest by right-clicking and selecting Save As…
- The two R scripts you’ll need: TestScript.r and Descriptives.r
- The two data files you’ll need: USBalanceofTrade.xlsx and NBA14Salaries.csv
Weekly Question
Leave your response as a comment on this post by the beginning of class on March 30, 2016. Remember, it only needs to be three or four sentences. For these weekly questions, I’m mainly interested in your opinions, not so much particular “facts” from the class! If you sign in using your AccessNet ID and password you won’t have to fill in the name, email and captcha fields when you leave your comment.
Here is the question:
Do a little bit of research and come up with an example of how R is used. You can describe either a company using R and what they use it for, a news story about how companies are using it, or an interesting package that does some interesting functionality. Write one to three sentences on what you found and the URL where you found it.
(Hint: Just Google “companies using R” or “applications of R” or something like that. Examples aren’t too difficult to find.)
Class Capture – 3/23/16
Here’s the link to today’s class capture: CC 32316
Excel Function Help
Here’s a little Excel function table that will walk us through some Excel review:
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