Not Connecting to Server

Not Connecting to Server

If you hit the "Connect" button for the R coding exercise windows but it will not connect to the server, please note the following:
  1. This error should be rare and should not persist for more than a few minutes.
  2. Please do not continue to hit "Connect" or "refresh" the page in that time as it restarts the server connection process each time.

Other Recommendations

  1. allow cookies in your browser 
  2. check that your internet browser is updated to its most recent version
  3. log out then log back into your LMS (e.g., Canvas, Moodle, etc.)
  4. try the exercises on a different browser (e.g., Firefox, Safari, etc.)
  5. check that your computer operating system is updated to its most recent version
  6. try the exercises on a different computer

Submit a Ticket 

Still having issues?

If you notice that the problem is persisting after more than 5 minutes of no connection then please forward us a screenshot of the page and we will investigate what may be causing the issue.
  1. Send us an email:  studentsupport@coursekata.zohodesk.com
  2. Or, submit a ticket from within the textbook by clicking the support icon.

    • Related Articles

    • Using the R Sandbox

      The R Sandbox The R Sandbox is a separate R window you can use to experiment with R code and play around with ideas from the course. It comes pre-loaded with the base R packages and all of the packages and datasets we reference in the textbook. ...

    • Data

      Data Data are recorded observations, measurements, or information collected to answer questions, test hypotheses, or make decisions. In statistics and data science, data are the raw material we analyze to discover patterns, relationships, and ...

    • data frame

      Data frame is an R object. It stores data in rows and columns.

    • R Objects

      R Objects Overview In R, everything is an object. Data, functions, models, and even results of calculations are all stored as objects. Understanding R objects is fundamental to working with data, writing reproducible code, and performing statistical ...

    • Data Generating Process (DGP)

      Data Generating Process (DGP) The Data Generating Process (DGP) refers to the underlying mechanism—real or hypothetical—that produces the data we observe. A DGP specifies how variables are related, how randomness enters the system, and how observed ...