Seeing is believing. A better presentation can more easily persuade people with your story. I, working as an EEG (electroencephalography) researcher, sometimes need to consider the location of its origin, referring to the electrode positions used while recording the data. This is because the scalp distribution of the recorded EEG potential (amplitude) can be affected by how the electrodes align with each other. Here I need to better visualize 3D locations of electrode positions.

Let’s try visualization of those electrode positions using Perl, in 3D manner, where you can change the camera position to watch them from your favorite angle/direction!

Continue reading Day 12: 3D visualization of scalp electrode sites can be done with Perl...

So, you've got yourself a shiny new MacBook and you want to give PDL a spin. Lucky you, because the OG author of PDL just got one recently and made an installer to save you a bunch of work. It works pretty much for Monterey through to Sonoma, buuuuut ... of course my machine happens to be running Sequoia 15.1, the latest release, which is not yet listed as having been tested but I believe in Santa and Santa believes in me!

Continue reading Day 3: Perl Data Language on the Mac...