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swirldev / swirl_courses

:mortar_board: A collection of interactive courses for the swirl R package.
http://swirlstats.com
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Problem with course... option 1 - in overview of statistics creates an error... #31

Closed ghost closed 10 years ago

ghost commented 10 years ago

| Please choose a course, or type 0 to exit swirl.

1: Overview of Statistics 2: R Programming 3: Take me to the swirl course repository!

Selection: 1

| Please choose a lesson, or type 0 to return to course menu.

1: dependson.txt

[...]

Selection: 1

Error in file(con, "r") : invalid 'description' argument

| Leaving swirl now. Type swirl() to resume.

WilCrofter commented 10 years ago

Looks like you have a broken installation of Open Intro. Overview of Statistics is a lesson, not a course, and shouldn't appear on the course menu. When you select it, the lesson menu lists all the files in the lesson directory.

I would try

library(swirl)
uninstall_course("Overview of Statistics")
install_from_swirl("Open Intro")
ghost commented 10 years ago

Good morning.

Yes.  I ended up removing the courses.  Then I realized I needed to start/run RStudio as admin.  This allowed the software to install additional packages needed.  Earlier this morning I was getting an error whenever a chart or diagram was attempting to be generated. ... something about incorrect dimensions..  or something like that.

I'm enjoying swirl() so far, and looking forward to learning more.   I have just recently changed jobs.  I have been working as a mainframe middleware services developer using java, C#, and COBOL to integrate web and IVR applications. I have helped design and build many shared web services.  My organization recently created a new Data Scientist position.  I applied, interviewed, and got the job.  Our current modeling systems are centered around SAS.  Nobody even knows about R.  However, I'm really interested in learning the language; as well as, Shiny.

Interactively, working through the questions and dialogs in swirl() is great.   

Thanks again.

Bud Flynn

From: William R Bauer notifications@github.com To: swirldev/swirl_courses swirl_courses@noreply.github.com Cc: Bud Flynn bflynn78@sbcglobal.net Sent: Friday, July 18, 2014 4:35 AM Subject: Re: [swirl_courses] Problem with course... option 1 - in overview of statistics creates an error... (#31)

Looks like you have a broken installation of Open Intro. Overview of Statistics is a lesson, not a course, and shouldn't appear on the course menu. When you select it, the lesson menu lists all the files in the lesson directory. I would try library(swirl) uninstall_course("Overview of Statistics") install_from_swirl("Open Intro") — Reply to this email directly or view it on GitHub.

ncarchedi commented 10 years ago

I was getting an error whenever a chart or diagram was attempting to be generated

This happens when the plotting window is not large enough to display the graphic. Just resize the window manually.

Congrats on the new job! It's nice to hear that you've found swirl helpful in your quest to learn R. Have you tried the R Programming and Regression Models courses?

Please let us know if there's anything else we can do to help.

ncarchedi commented 10 years ago

@bflynn78 I'm assuming your problem was resolved. Please feel free to reopen this issue if you're still having trouble with the plots displaying.