Comments and changes to the site for 2021
The year 2020 was dominated by Covid. Almost a year ago, when it broke out in the US, I took some time from presenting Statistics to do some mathematical modelling of the spread of the Covid pandemic. The results are a series of videos published on YouTube. They are presented here (some twice), just have a look at the Table of Contents.
Looking back at some of the criticisms mentionned in the 2019 and 2020 updates:
- No treatment of SAS - I love SAS and would love to add it to the site. There are, however, other topics of higher priority for this site. Nevertheless, I hope to add it sometime in the future..
- Weird (non-traditional) table of contents - I hope better now.
- Needs more applications - Improved, but still not enough. More applications are coming. Please feel free to request specific applications.
Some compliments have been (Thanks, I'm leaving this is, just to brag).:
- Easy to understand video presentations
- Quick reference for refreshing knowledge of r
- Most valuable: showing structure of data and runs of r
Since there are so many statistics sites out there, as promised in 2019 a "review" page has been added. Here we look at some sites that are well done and useful. This review page is still under development, but is shown in its present "under construction" state. Come back often to check it out.
On the "Overview" page, there is a general presentation of how to choose statistical methods. The orientation, in fact everything here, is heavily influenced by biostatistical work in the pharmaceutical industry, but the principles will remain true everywhere else. The overview page is REALLY under construction, so thank you for bearing with us.
Original motivations and objectives:
- Well, first, it is free (but there are free ones out there already)
- There are videos showing how to do things in addition to the usual text (which is minimized)
- Jargon will be avoided as much as possible, but this is NOT A SITE FOR DUMMIES ! You are not a dummy just because you are not yet a statistics geek.
- I will focus on showing you how to arrange your data and perform / interpret the analyses
- Topics will arise naturally, as we need them, and not in a fixed prescriptive order...
So, with all the people out there putting up websites, how do you judge the quality of what you are getting? GREAT QUESTION ! I will give references for everything that I claim, and for my own personal background, I am including my personal web page below (after the video).
To get started, we will need software that does statistics. One that is good, and free, is called "R". The video below is a "warts and all" (ie "fumbling around included") demonstration of how to get R onto your computer.
Note that my computer is a PC. R has a version for the Mac which can be downloaded on the same site as the PC version, here.
The next most important thing is: once R is installed, where it is going to go to get and store my things (files, etc.). This is called the workspace, or the work directory. From the command line in R, you can get it by typing getwd() . In R, under "files", you will find a place to click to change the workspace to be whereever you want it to be.
Click here to have a look at my personal website:
Please come back to this site soon. The content will be growing continually...
Contact me at: firstname.lastname@example.org