Introduction
After the earlier course about Polars, I used to be excited to study extra. I settled on Information Evaluation with Polars with Liam Brannigan instructing. I used to be drawn to this due to the point out of visualization utilizing Matplotlib, Seaborn, Altair and Plotly. The course is billed at 2.5 hours lengthy and is at present going for $85, although I did choose this up throughout one in every of Udemy’s many gross sales.
Let’s get began on the evaluate and why I rated it so low.
Course
I’ve a number of complaints about this course.
- Your entire course is studying from pre-built notebooks or slides.
- The final 26 out of 27 lectures are one web page slides.
- The quizzes in the midst of the programs usually are not efficient, as a result of the course just isn’t designed for the learner to truly do any coding.
- The excercises on the finish of lectures are by no means revisited.
This course felt like the trainer was given a bunch of Jupyter notebooks however a extra senior teacher and informed to go educate the category. There’s plenty of studying immediately from the pocket book, rapidly glossing over code, after which speaking by means of the output of the code. In contrast to the final course, this one does not even really feel like a cookbook of usefulness. It is only a glorified slide deck.
Let me present you what I imply. That is the course record’s final 4 sections. I’ve collapsed them to point out solely the part header so it is a cheap sized screenshot.
There are 27 lectures in these 4 sections. The overall estimated time for these 27 lectures – 7 minutes. There’s only one video on this total group of sections. The opposite 26 out of 27 lectures are one web page slides. The slides are “What you may study by the top of this lecture” slides and a hyperlink to a Jupyter pocket book.
The quizzes scattered by means of out the course are additionally ineffective. Most of the questioned requested are asking what code offered is appropriate. These could be useful, if the learner has carried out any fingers work in the course of the course. However, this course is not designed that method. It is an teacher studying slides, hand waving at some code, after which executing the code to point out it really works. It is ineffective.
The identical drawback holds true with the excercises on the finish of many lectures. They’re designed to get the coed extra expertise and I began doing them early within the course. However, they’re by no means revisited. The teacher does not discuss them. It is simply homework that is assigned as busy work, primarily.
Conclusion
Keep away from this course. almost half the course is only a single slide for the lectures. The objects I used to be excited by studying about – visualizations – have been amongst these one web page slides. The course is designed like a glorified README, and its not definitely worth the gross sales value I paid, let alongside the complete value.

