In this video, Dr. Lyndon Walker explores the capabilities of the Julius AI app, a tool designed for data analysis and visualization using artificial intelligence. Julius AI can create Python code from regular language prompts, perform analysis, and interpret results. The video begins with a normal distribution probability question, which Julius AI handles correctly, providing both the solution and the Python code used to calculate it.
Next, Dr. Walker uploads a dataset from the Australian Institute of Sport, containing information about athletes, including metrics like gender, sport, and various blood test results. He demonstrates basic plotting by asking Julius AI to plot height against weight, which the app performs accurately, including color-coding by gender.
The video then moves on to more complex statistical tests, such as a two-way ANOVA for weight using sport and sex. Julius AI correctly identifies significant effects and provides suggestions for further analysis. However, when asked for post-hoc tests, the app struggles with presentation but still delivers the correct summaries.
Dr. Walker tests Julius AI’s ability to generate comprehensive reports and perform cluster analysis. While the app performs well in generating summaries and visualizations, it encounters limitations when handling large requests, prompting an upgrade for more extensive analysis.
Overall, Dr. Walker finds Julius AI to be a powerful tool for data analysis, capable of efficiently performing statistical tests and generating reasonable interpretations. He suggests that the app could be a valuable timesaver for sports scientists and other researchers, despite some minor issues with data presentation.
The video concludes with a recommendation to try out Julius AI, highlighting its free usage tier and potential for more advanced features with a paid upgrade. Dr. Walker promises more videos on AI, stats, and research in the future.