Data Science. TileDB. Open Source. Quant Research. R. C++. Debian. Linux. Adjunct Clinical Professor, University of Illinois. Lots of coffee. And some running.

Chicago, IL, USA
Joined March 2007
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That is in response / as a follow-up to @df7cb showing the same in #postgresql but I couldn't reply-tweet with a screenshot ... Also no space for the #rdatatable tag the tweet really needed too.
#TIL 13ths are more often Fridays than other weekdays: select extract(dow from d), count(*) from generate_series(date 'today' - interval '400 years', date 'today' + interval '400 years', interval '1 day') as g(d) where extract(day from d) = 13 group by 1 order by 1; @PostgreSQL
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#TIL 13ths are more often Fridays: library(data.table) data.table(d=seq(Sys.Date()-365.25*400, Sys.Date()+365.25*400, by=1))[ mday(d)==13,.(weekday=wday(d))][ ,.(count=.N),by=weekday][ order(weekday)] #rstats /cc @df7cb @josepheconway
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And the R 3.6.2 @Debian package just went out with @Ubuntu PPA builds to follow thanks to @marutterstat. #rstats
#rstats R version 3.6.2 "Dark and Stormy Night" has been released (source version)
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For code with, say, Rcpp.h and/or Boost headers (which really are aggregated include statements) it wants to break things up into smaller more concise statements---just as stated---so you may encounter a lot of output.
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RcppClassic 0.9.12 on CRAN: Maintenance Deprecated previous Rcpp API dirk.eddelbuettel.com/blog/2… #rstats #rcpp
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One to take with us and one to keep...
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RcppArmadillo 0.9.800.3.0 on CRAN: Bugfixes R bindings to powerful and expressive C++ matrix library dirk.eddelbuettel.com/blog/2… #rstats #rcpp
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RDieHarder 0.2.1 on CRAN: Appease CRAN and gcc-10 DieHarder RNG testing for R dirk.eddelbuettel.com/blog/2… #rstats
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And the @Debian (source) package(s) have been updated, binaries to follow. There will also be an updated Docker container via my RQuantLib repo, and I will likely build Ubuntu 19.04 packages via my PPA.
#QuantLib 1.17 was released today. Thanks to all contributors! Get it at <quantlib.org/download.shtml>. List of changes at <quantlib.org/reference/histo…>.
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digest 0.6.23 on CRAN: More sha1 refinements Hash digests for arbitrary R objects dirk.eddelbuettel.com/blog/2… #rstats
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This looks fabulous. Great iniative to show some more @rdatatable awesomeness. Had actually been thinking that "someone" could also do the SQL examples by @b0rk in @rdatatable too .... There is so much power and beauty in `dt[i, j, by]` and the @rdatatable backend.
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ttdo 0.0.4 on CRAN: Generalized tinytest extension Colorized diffs for tinytest unit test predicates dirk.eddelbuettel.com/blog/2… #rstats
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RcppEigen 0.3.3.7.0 on CRAN: Updated upstream, tinytest, small polishes Eigen C++ Matrix Algebra binding for R dirk.eddelbuettel.com/blog/2… #rcpp #rstats /cc @axiomsofxyz
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RcppAnnoy 0.0.14 on CRAN: Some small fixes (Very Fast) Approximate Nearest Neighbours for R dirk.eddelbuettel.com/blog/2… #rcpp #rstats
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Rcpp 1.0.3 at CRAN: More Spit and Polish Seamless R and C++ Integration dirk.eddelbuettel.com/blog/2… #rstats #rcpp /cc @kevin_ushey @stephematician @romain_francois @MiraiSolutions
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Or, and that needs to be said and repeated, lack of breaking changes! CRAN *really* is just simply fantastically reliable here. I have been updating (nearly) daily for maybe a decade or longer and things just don't break if you choose your package stack wisely.
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New repo and machine learning package bringing 'Corels' to R: Certifiably Optimal Rule Lists (Corels) Learner Rcpp bindings to connect R and the Corels C++ backend. github.com/eddelbuettel/rcpp… #rstats #rcpp #machinelearning
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Signs you code too much and run too little #83: An email from @Strava makes you wonder "hm, what can they teach me about Pull Requests?". Happy @nymarathon to all runners! Ran a nice BQ (another one those terms...) there 12 years ago followed by a PR in Berlin the next year...
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binb 0.0.5 on CRAN: Crisper Beamer PDF slides from (R)Markdown dirk.eddelbuettel.com/blog/2… #rstats /cc @robjhyndman @TeaStats
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You can now sponsor me at @GitHub if you are so inclined -- and for the first year @GitHub will match funds! More at github.com/sponsors/eddelbue… Thanks to @joshua_ulrich for alerting me about this, and to @joshua_ulrich and @dselivanov_ for (publically) doing so. #rstats #rcpp
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