jmount

38 ms·

451.
Tidyverse users: gather/spread are on the way out(win-vector.com)
2 points by jmount 8y ago|0 comments
452.
by jmount 8y ago
Eventually the specialized processing units get re-classified as general processing units, covered in "On the Design of Display Processors" http://cva.stanford.edu/classes/cs99s/papers/myer-sutherlan
453.
by jmount 8y ago
If you are interested in the Traveling Salesman problem, I recommend William J. Cook's excellent "In Pursuit of the Traveling Salesman."
454.
by jmount 8y ago
It comes full circle: computers used to be the size of a building, and now what we call data centers are again the sizes of buildings (and in many cases can be considered a large distributed computer). I've always enjoyed this article
455.
by jmount 8y ago
The idea of writing A in binary and forming the 0/1 polynomial such that p(2) = A is nifty. Then if you factor p(x) it into two polynomials with integer coefficients u(x)v(x) you have u(2) and v(2) are divisors of A, so if none of the
456.
Timing the Same Algorithm in R, Python, and C++(win-vector.com)
5 points by jmount 8y ago|0 comments
457.
Introducing RcppDynProg(win-vector.com)
1 points by jmount 8y ago|0 comments
458.
by jmount 8y ago
I like your point. Just to play with it a bit. Unenforced coding standards can't be relied on. So you want something like lint (of old), tidy-clang, or git check-in hooks to help enforce. At that point it becomes tempting to say &quot
459.
by jmount 8y ago
MailChimp removed half my users from a mailing list that I hadn't sent out recently claiming lots of unverified sign-ups and spam complaints. The sign-ups where all through MailChimp, so I don't know why then didn't like the
460.
by jmount 8y ago
It is only anecdotal: but I had my identity stolen within days of joining the Marriott rewards program in December 2016. I think they may have been getting credit reports on members (which generates a lot more personal data than you gave t
461.
Conway’s Game of Life in R: Or on the Importance of Vectorizing Your R Code(win-vector.com)
1 points by jmount 8y ago|0 comments
462.
Visually Designing Data Transforms(win-vector.com)
2 points by jmount 8y ago|0 comments
463.
Quick Significance Calculations for A/B Tests(win-vector.com)
2 points by jmount 8y ago|0 comments
464.
by jmount 8y ago
"On the design of display processors" has some great observations on the evolution of specialized/general processors http://cva.stanford.edu/classes/cs99s/papers/myer-sutherland...
465.
Timing Column Indexing in R(win-vector.com)
2 points by jmount 8y ago|0 comments
466.
A history of macros in R(github.com)
2 points by jmount 8y ago|0 comments
467.
by jmount 8y ago
Hossenfelder’s book "Lost in Math" ( One review here http://www.math.columbia.edu/~woit/wordpress/?p=10314 ) covers a bit of why confirming the standard model is a bit disappointing. The rough idea is t
468.
by jmount 8y ago
No, I don't believe I said that. I think I mentioned it would be bad in the first note. It just is if something could do that in general conditions it is an absorbing or end-state.
469.
by jmount 8y ago
And in the movies the life forms don't limit division, and probably exhausted the food (hence the barren planets they come from).
470.
by jmount 8y ago
In some science fiction movies (for example "Life", "The Green Slime") the alien life forms grow incredibly fast. If that works or is possible, it makes one wonder why no terrestrial life-form didn't adapt a simila
471.
Timings of a Grouped Rank Filter Task(win-vector.com)
1 points by jmount 8y ago|0 comments
472.
Announcing Practical Data Science with R, 2nd Edition(win-vector.com)
1 points by jmount 8y ago|0 comments
473.
by jmount 8y ago
A gem on this topic: "On the Design of Display Processors" (The Wheel of Reincarnation) http://cva.stanford.edu/classes/cs99s/papers/myer-sutherland...
474.
by jmount 8y ago
With JavaSpaces I remember really getting burned by the lack of queuing fairness guarantees. The ideas were nice- but execution was very laggy.
475.
by jmount 8y ago
Another fun one: Fermi's definition of "remote possibility" as a chance of no more than 1 in 10. (Scary when talking about the odds of initiating a chain reaction, making a small atomic weapon, or even igniting the atmosphere
476.
Vtreat: Big Data Scale Data Preparation from R(win-vector.com)
2 points by jmount 8y ago|0 comments
477.
by jmount 8y ago
The translation stuff may be okay for user code (and I know Apple has done it before). But for scientific code it is just too much cost and too many things to break. I know scientists are not Apple's target market, but this just makes
478.
by jmount 8y ago
I know Apple has gone through these transitions before (68K -> PWR -> Intel). But if there is a move to ARM this is the first time they have moved away from a currently dominant ecosystem (yes, to another popular one in this case; but
479.
Codd's 12 rules(en.wikipedia.org)
5 points by jmount 8y ago|0 comments
480.
by jmount 8y ago
The tasks of dropping columns and also of replacing one column value while brining over all others are very desirable data transformations. Codd's algebra had related features (project/extend and maybe an assign) and they showed

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