Category Archives: Uncategorized

Injury Epidemiology of Baghdad

New paper out: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0131834

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Cool idea: JoVE

Here is a super-cool approach to making science more reproducible: the journal of visualized experiments http://www.jove.com/

Here is an example: http://www.jove.com/video/2065/combining-behavioral-endocrinology-experimental-economics

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Medium data in Python: loading a 10G .dta file

Here is a little recipe I cooked from today, a way to load a large Stata file into Python that you can cancel and still get something to play around with. I put it in an old StackOverflow question, so can somebody upvote it for me?

http://stackoverflow.com/a/31869752/1935494

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A bit confusing: zooming and tooltips in mpld3

Here is an answer to a question about zooming and tooltips in mpld3: http://stackoverflow.com/questions/31122064/tooltips-disappear-after-zoom-in-out-when-using-matplotlib-mpld3/31843371#31843371

I like the animation I made to answer it, but it is also something worth considering changing, because this interface *is* a bit confusing.

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Faster, clearer code with Python Pandas

Today I learned about DataFrame.query and DataFrame.eval, which I first saw when I was looking over some students’ shoulders during code review last quarter. Very cool way to make things faster to run and to read: https://gist.github.com/aflaxman/f40ecd3c3eb33f5ab8d2

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Some Python libraries to watch

http://ioam.github.io/holoviews/Tutorials/Introduction with led me to https://ioam.github.io/param/ which could be useful for lots of scientific computation.

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Here is a careful recap of the journalistic coverage of Iraq mortality estimation

> Some scientists think that’s what’s really needed: for journalists to simply learn more about statistics in order to better weigh the validity of new studies as they report on them.

http://www.cjr.org/criticism/iraq_body_count.php

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How do we stop data errors?

On my mind, due to some careful checking of results prior to submissions. Nothing substantive changed, but the numbers have to be right.

Correction
Data Errors in Results Section
JAMA. 2015;314(1):86 doi:10.1001/jama.2015.6076
Data Errors in Table 2
JAMA. 2015;314(1):86 doi:10.1001/jama.2015.6072
Data Errors in Table 3 and in Text
JAMA. 2015;314(1):86 doi:10.1001/jama.2015.6074
Incorrect Data in Table 4
JAMA. 2015;314(1):86 doi:10.1001/jama.2015.5464

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ADVI in PyMC3

I don’t know how to use it and I don’t know if it works yet, but I’m watching the demos grow: https://github.com/pymc-devs/pymc3/blob/2250386c826e8744e13654188074dd69dad829de/pymc3/examples/advi.ipynb https://github.com/pymc-devs/pymc3/blob/01312efb319f45ec81824f7eccfea69e7b5a7ba1/pymc3/examples/GLM-hierarchical-ADVI.ipynb

I think I want some

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Uncertainty quantification by clinicians

I continue to be drawn to articles in JAMA Oncology about how we wrestle with uncertain information in life-and-death decision making:
http://oncology.jamanetwork.com/article.aspx?articleID=2398178
http://oncology.jamanetwork.com/article.aspx?articleID=2398176

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