Commit Graph

457 Commits (63e55ac81391f0a01d910c5dda8bcc6bab513976)

Author SHA1 Message Date
John Benediktsson 53382f4472 math.extras: return new arrays to protect users from others. 2012-12-04 09:06:30 -08:00
John Benediktsson c4637b5d79 math.extras: adding unique-indices. 2012-11-07 17:05:06 -08:00
John Benediktsson 1e413edf3a math.statistics: rename full-* to population-*. 2012-11-06 07:16:20 -08:00
John Benediktsson 5f4bf4513b math.extras: implement "search-sorted" and "weighted-random". 2012-10-05 14:48:05 -07:00
Doug Coleman 48184779ea math.extras: Call (gini). 2012-09-26 16:25:20 -07:00
John Benediktsson 9d813ef1a9 math.extras: simpler herfindahl. 2012-09-26 15:43:15 -07:00
John Benediktsson 1fe94e4184 math.extras: adding exponential-index. 2012-09-26 15:29:08 -07:00
John Benediktsson 905e26e9e0 math.extras: adding the Herfindahl measure. 2012-09-26 15:25:45 -07:00
John Benediktsson 35677bc5fa math.extras: remove variable effects from cum-reduce for now. 2012-09-26 15:20:18 -07:00
John Benediktsson 35bd1a4bbc math.extras: invent "cum-reduce" concept for gini. 2012-09-26 15:11:41 -07:00
Doug Coleman 768611d130 math.extras: Add sum-cum-sum. Change concentration-coefficient to be more straightforward. 2012-09-26 09:07:57 -07:00
Doug Coleman 1cf27a2af9 math.extras: Fix concentration-coefficient. 2012-09-25 17:54:24 -07:00
Doug Coleman d5e26ee76d math.extras: Faster gini. Leaving this as a separate patch for comparison. 2012-09-25 17:52:27 -07:00
Doug Coleman 59e97e1587 math.extras: Add gini and concentration coefficient. 2012-09-25 17:46:05 -07:00
John Benediktsson 2da0e52525 math.extras: adding docs for ramanujan. 2012-09-25 10:50:09 -07:00
John Benediktsson b601d154c1 math.extras: fix spelling of stirling, add ramanujan approximation of factorial. 2012-09-25 10:48:09 -07:00
Doug Coleman 3014b1828a math.transforms.bwt: Simplify two places in bwt. 2012-09-10 08:52:42 -07:00
John Benediktsson 9fe9437445 math.transforms.bwt: adding inefficient versions of Burrows-Wheeler transform. 2012-09-09 11:38:59 -07:00
John Benediktsson 7e9f3d665b math.cardinality: adding a cardinality estimator. 2012-09-08 14:00:36 -07:00
John Benediktsson 5af4627e18 math.extras: adding "until-zero". 2012-08-31 15:00:53 -07:00
John Benediktsson a454b2e384 math.extras: adding moving-count. 2012-08-31 11:04:12 -07:00
John Benediktsson 79ee220d6c math.transforms.fft: bit simpler, faster. 2012-08-09 12:34:02 -07:00
John Benediktsson d6aa829a06 math.transforms.fft: specify algorithm. 2012-08-09 08:56:47 -07:00
John Benediktsson 034b5a255d math.transforms.fft: using 2map-index to simplify. 2012-08-09 08:36:26 -07:00
John Benediktsson 206d4f851d math.transforms.fft: adding cross-correlation. 2012-08-08 21:00:49 -07:00
John Benediktsson d46617e323 math.transforms.fft: simple, fairly slow, fft. 2012-08-08 20:28:14 -07:00
John Benediktsson 60e3fc9341 math.extras: adding moving sum/supremum/infimum. 2012-07-30 16:16:10 -07:00
John Benediktsson 01abb351b5 math.extras: more maths functions. 2012-07-27 12:44:51 -07:00
John Benediktsson 4e72d80256 Using "same?" in more places. 2012-07-21 10:22:44 -07:00
John Benediktsson 2f325e4fee using if-zero in even more places. 2012-07-16 19:38:49 -07:00
John Benediktsson 5cc30f46f5 using if-zero in more places. 2012-07-16 15:45:21 -07:00
John Benediktsson 69d11c08e0 math.text.french: removing duplicate if-zero definition. 2012-06-22 08:36:37 -07:00
John Benediktsson 2dfa80c71e math.blas.config: deal with OS X libblas ABI mess
x86-64 libblas uses different ABIs on 10.5 and 10.7, and is broken on 10.6.
Modified from patch by Joe Groff.
2012-06-20 17:17:49 -07:00
John Benediktsson 314dc05ab0 math.extras: adding nonzero. 2012-06-19 14:23:00 -07:00
John Benediktsson fe4be254da sequences.extras: move min-by/max-by to math.compare. 2012-05-19 11:26:01 -07:00
John Benediktsson bab0f663ae math.similarity: fix tests, not sure this is the correct definition. 2012-05-08 08:05:31 -07:00
John Benediktsson a2f8735c9a math.extras: adding moving-median. 2012-05-04 14:23:15 -07:00
John Benediktsson cbf022454b math.finance: adding some tests. 2012-05-04 10:06:24 -07:00
John Benediktsson 0a187f6609 math.finance: some fixes to dema, gdema, and tema. 2012-05-04 09:40:04 -07:00
John Benediktsson 3841bbb891 math.extras: adding moving-average and exponential-moving-average words. 2012-05-04 09:04:58 -07:00
Doug Coleman 3c29b4c131 math.blas, alien.fortran: Back from beyond the grave. 2012-05-04 09:05:43 -07:00
John Benediktsson 7b01763975 math.extras: adding jacobi and legendere symbols. 2012-05-04 08:57:09 -07:00
John Benediktsson 7fe0e95cd4 math.finance: adding dema, gdema, and tema. 2012-05-03 16:31:04 -07:00
John Benediktsson 3c3ad89a22 math.distances: adding correlation-distance. 2012-05-03 15:52:28 -07:00
John Benediktsson d3d109aa3e math.distances: adding a couple more distance functions. 2012-05-03 15:42:12 -07:00
John Benediktsson af8f23a78c math.distances: adding some distance functions. 2012-05-03 13:38:59 -07:00
John Benediktsson 6b8d802985 math.similarity: adding a few similarity metrics. 2012-05-03 10:57:30 -07:00
Doug Coleman f6398365bd math.functions: rename exp to e^ to be consistent with 2^ and 10^. update things. 2012-05-02 10:22:23 -07:00
John Benediktsson 0650495414 math.extras: adding sterling numbers, bernoulli numbers, chi-square and inverse-chi-square words. 2012-04-20 20:09:54 -07:00
John Benediktsson 449814a387 math.primes.twins: calculating twin primes. 2012-04-19 15:14:31 -07:00