Project 1 is almost finished! If your mentor still does not have your Github repo and all TAs cannot access it, then will be unable to grade your project.
The dataset on this page comes from an interesting notebook on Kaggle about atmospheric CO2 concentrations. I'm using it for demo purposes and can't speak to the veracity of the data.
Today we're looking at d3 line plots. They also use a data join, but it's a bit trickier to implement. Here is some documentation on d3.shape, the library used for making line charts, and here is the documentation on d3.time. Recall what we learned at the start of class on SVG paths.
If you're still confused about why we used translate in the last class, Mike Bostock has a handy page discussing chart margins.