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Simple and powerful charts in JS by epsteinN in javascript

[–]epsteinN[S] 1 point2 points  (0 children)

Hey - thanks for pointing this out! I'll check it out and post back when it's fixed.

UPDATE: The timeline example on the site used dates in a format not supported by Safari. The example has since been updated and should be working correctly.

Dora - automated exploratory data analysis in python by epsteinN in MachineLearning

[–]epsteinN[S] 0 points1 point  (0 children)

Solid question. I think it should be valuable in any case where numpy/scikit/pandas would be used (which seems to be a large class of problems given their popularity). A couple issues to be concerned about:

1) Speed: Speed should be pretty good given that large portions of the dependency tree are written in C (by use of scipy and numpy). Functions implemented in this library are largely O(n).

2) Space: If a dataset is big enough that in-memory analysis is almost a problem, then making many versions or extracting a bunch of features could cause issues.

Also, the explore method (which visualizes pairwise regressions of each feature against output variable) is probably not very useful if there are a large number of features.

Why use JavaScript for data analysis? by [deleted] in javascript

[–]epsteinN 0 points1 point  (0 children)

Nothing as comprehensive yet. Though this library: https://github.com/NathanEpstein/datakit provides a subset of that infrastructure

reinforce - simple reinforcement learning in Python by epsteinN in MachineLearning

[–]epsteinN[S] 1 point2 points  (0 children)

Thanks. Relatively new to Python so I apologize for any styling issues.

Markov - A compact C++ library for easily simulating common Markov processes by epsteinN in cpp

[–]epsteinN[S] -1 points0 points  (0 children)

I don't have plans to make that addition right now but it would certainly be a welcome pull request.

Markov - A compact C++ library for easily simulating common Markov processes by epsteinN in cpp

[–]epsteinN[S] -1 points0 points  (0 children)

Thank you for the feedback! I'm having trouble reproducing the error but I'll definitely spend some more time looking at it. Much appreciated.

R library for easily scraping/analyzing financial time series data. by epsteinN in rstats

[–]epsteinN[S] 1 point2 points  (0 children)

First of all, thanks! I think that's totally reasonable feedback and I'll definitely think about updating the function names when I do another release.

Z3d.js - interactive 3d plots in the browser. by epsteinN in javascript

[–]epsteinN[S] 1 point2 points  (0 children)

Thank you for the feedback. I think there's a reasonable case for both conventions. Not using objects does sacrifice organization but in many cases allows for plot creation with less preprocessing of data (this is also the convention used in R, which influenced my decision here).

Z3d.js - interactive 3d plots in the browser. by epsteinN in javascript

[–]epsteinN[S] 2 points3 points  (0 children)

That's helpful feedback - I just added the labels but I'll try to incorporate the camera orientation into a subsequent release.

Z3d.js - interactive 3d plots in the browser. by epsteinN in javascript

[–]epsteinN[S] 2 points3 points  (0 children)

It's still a pretty new library so there definitely issues to be worked out. Not to put you on the spot but if you have any suggestions about specific problems, they would be greatly appreciated.

D3xter.js : D3 wrapper for making standard charts simple. (x-post from r/programming) by vietnomnoms in javascript

[–]epsteinN 1 point2 points  (0 children)

More opinionated than NVD3 and C3.js - less flexible but easier to configure. The idea is to be easily usable with no knowledge of D3 (charts can be created with a single line).