Intro to R

Getting started with the free statistics software

R is one of the most widely used statistics software packages in the world. Its versatility as a programming language and its interconnectivity with email, web page generation and other computer processes make it a bit daunting for people just starting to use it for data analysis. It need not be that way. This webinar introduces you to R software and its use for data analysis. You'll learn how to type commands, install and load packages, and use the pull-down menus of R Commander (Rcmdr) to compute confidence intervals and a test for whether the mean exceeds a numerical standard.


Your Instructor


Dennis Helsel
Dennis Helsel

Dennis Helsel (Ph.D. Environmental Science and Engineering):
"I'm a translator of statistical methods for scientists. My firm's name, Practical Stats, says it all. I've written/co-authored two textbooks. Statistics for Censored Environmental Data using Minitab and R (2012) pioneered statistical methods for data below detection limits. Statistical Methods in Water Resources (2020) has been cited by scientists throughout the world. I've taught webinars for the National Water Quality Monitoring Council and others; workshops for the American Statistical Association and others; courses such as AES and NADA for scientists in North America, Europe and Singapore since 1990. I worked for 30 years at the US Geological Survey before starting Practical Stats.

In 2003 I received the Distinguished Achievement Award from the American Statistical Association’s Section on Statistics and the Environment for my training courses in applied statistics.

In 2018 I received the Lifetime Achievement Award from the California Groundwater Resources Association for my communication of statistical methods to scientists. My courses provide up-to-date procedures communicated in clear language using video examples of data analysis of 'real data'."


Course Curriculum


  Click the 'Start next lecture' button above to begin and to download lecture notes and data.
Available in days
days after you enroll

Frequently Asked Questions


When does the webinar start and finish?
Anytime that you want! It is a one-hour recorded webinar - you decide when you start and when you finish. You may view it as many times as you wish -- your access doesn't end.
How long do I have access to the webinar?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
Where can I say "thank you for this information" or "here are issues that must be changed" ?
We would be glad to get your feedback, on both what was most valuable and what things you would like to see changed. Send your comments to [email protected] You can also go to our Facebook page and tell others of the course's value. We hope it is much more valuable than the amount of money you paid for it. :-)

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