sjaustirni

Have you thought of using one of [existing implementations](https://crates.io/search?q=pgn)?

It seems like some Sparse/Robust PCA tests use [Yale face dataset](http://vision.ucsd.edu/~leekc/ExtYaleDatabase/ExtYaleB.html). It might be too big for `linfa-datasets` though (as it is a lot of image data), but I think...

Hey @bytesnake thanks for your answer. I was indeed confused about hyperparameters vs parameters, thank you for clearing it up :D I want to, of course, use the existing PCA...

Are you talking about [Handling Context Lost](https://www.khronos.org/webgl/wiki/HandlingContextLost)? And what image are you talking about? Just a general placeholder image, or the last saved frame?

It seems like it should be theoretically possible ([demo for one context in a page that preserves the buffer when the context is lost](https://github.com/davidwparker/programmingtil-webgl/blob/91dd9ca3b720f35b2c89953e71fe5e8f9a6b8d5f/0093-lost-context-part-2/index.js#L295)), although due to the hard browsers...

Is the drawing buffer from previous complete frame invalidated right upon the context loss? I was thinking that if the drawing buffers are not invalidated immediately the above linked method...

OK, I did not do much experimentation, but I did some more reading. According to [WebGL spec](https://www.khronos.org/registry/webgl/specs/latest/1.0/), the previous drawing buffer is discarded on `webglcontextrestored` event, see **5.15.3 The Context...

I have realized that it is not exactly possible to "trigger" context restore. It is an event that is fired by the browser at its will. Whilst we could make...

What is the status on this? It seems like we now have [two](https://github.com/3dmol/3Dmol.js/blob/master/viewer/viewer.html) [versions/copies](https://github.com/3dmol/3Dmol.js/blob/master/viewer.html) of some kind of viewer/editor.

@theotherphil Good catch! My image viewer has blackish background, so I did not see it initially. It seems that the black bars are more prevalent, there is also a horizontal...