1HaskellADay

Saturday, July 12, 2014

1HaskellADay: Up, up, and away!

I've taken it upon myself to submit problems, then show the solutions, for @1HaskellADay. I started this work on July 1st, 2014. So the next set of entries serve to collect what I've done, both problems and solutions, and, if a particular day posed a particularly interesting problem, that I solved, or, that I didn't solve, I'll capture that here, too.

Problems:

The problems are free-form meditations based off the P-99: Ninety-Nine Prolog problems published by Werner Hett (Ooh! Fancy new look!)
August, 2014

  • August 1st, 2014: "But programming isn't math, so ..." Today's #haskell problem? 'Fix' yesterday's solution to be less ... 'icky.' http://lpaste.net/108559 π, fast (So you're not eating π? ... okay: 'quickly.') A solution set to today's exercises with Wow-o-wow results. http://lpaste.net/108576
  • Bonus: August 1st, 2014: This is Embarrassing(ly parallel) to have π in da face!  http://lpaste.net/108562
  • A-to-the-ST for da D-down-low-on-the-SL. Today's #haskell exercise is write your own language, then some rules. Yeah. http://lpaste.net/108733. LAWLZ! NAND on the A-to-the-ST! http://lpaste.net/108758 A solution to the first 2 exercises to today's problem. YMMV: not pretty nor generic.
  • Baby needs a new pair of shoes! And you need a new daily #haskell problem to solve. http://lpaste.net/108820 Done! ;) Love is the Universal Language. No, wait. We were talking about Money, yes? Me confused. Solution to today's exercise http://lpaste.net/108829. I have a Yen for Thinking Japanese, or so I think so ... a solution to the bonus #haskell exercise http://lpaste.net/108871
  • Bayes was a man of letters. A Bayesian classifier for letter-recognition? Sure, let's give it a go for today's #haskell exercise. http://lpaste.net/108901 So now we know 'M' looks like 'W' to some peeps but 'B', 'I', 'O' check out fine, so WE ARE READING WITH HASKELL! YAY http://lpaste.net/108916 ... added definitions to do test runs over the entire data set and then did various runs, tweaking the system. Results noted. Informative.
  • Today's #haskell exercise. An expert system for blood donation. I use the term 'expert' loosely, eh? ;) http://lpaste.net/108989 Have at it! "I vant to drinq yur bloot! Bwa-hahaha!" Okay. That quote is just ... creepy. A solution to today's exercise is at http://lpaste.net/108994
  • Veni, Vidi, ... Duci? http://lpaste.net/109043 Today's #haskell exercise. It is a relief to know that no tactical nukes were launched by testing the solution to today's #haskell exercise. http://lpaste.net/109061 or How do you count Mississippi's in Roman numerals?
  • August 11th, 2014, Monday: You've heard of 'Rock Management'? How about ROCK LOBSTERS! GIVE ME A ROCK, NAOW!!!1!!!!11! Today's #haskell exercise http://lpaste.net/109188 
  • August 12th, 2014, Tuesday: To Fract or Not to Fract: why are we even considering this question? Today's #haskell exercise http://lpaste.net/109219 

  • Ooh! Bonus problem? On a Tuesday? Wowsers! Today's #haskell #bonus problem: "Continuum spectrum maximum... uh, 'thing'um" http://lpaste.net/109205
  • August 13th, 2014, Wednesday. No problem! (literally), but: "Fract! The Cylons!" No... wait: Starbuck used a different word. A solution to yesterday's fracting problem is at http://lpaste.net/109341
Flatliners. No fracting, no 'peak'ing, just a baseline data set of 
initializeSpectrum defined with flatline function.

Twin Peaks. Still not fracted, but data set with two spikes 
rolled into the base data set with smoothSpike fn 

Fracted. Data set with peaks, fracted using the frackedSpike function

  • August 14th, 2014, Thursday: Pining for that next fibo date-time before 2584. Today's #haskell problem inspired by @AlgebraFact http://lpaste.net/109349. Updated problem. Tightened up return value, removing unnecessary semideterminism. So, it gives, leik, a septatuple answer, leik. ... Yeah. Time keeps flowing like a (Fibonacci) river, to the sea. http://lpaste.net/109389 A solution to  the 'next Fibonacci' problem posted today.
  • Hail, Eris! or the Law of Fives or today's #haskell problem (implementing a Ripple-down rule set). Do it to it! http://lpaste.net/109350. One of three-parter solution to today's problem: Forall Existential(ism) http://lpaste.net/109458 A solution allowing forall-quantified values. Two of the three-part solution: All you need is fnord (la-di-da-di-dah)! Rippling down (and accumulating fired) rules http://lpaste.net/109433. Third of three-part solution: RippleDownRuleto ergo sum, adding rules to the RDR system http://lpaste.net/109473.  Updated the 3rd solution to the RDR (Writer monad definition) to ripple down to left and right, fixing inconsistency in rule findings.
  • August 18th, 2014: What's FP good for? Crypto and technical (financial) indicators. Why? Um, let's do today's #haskell exercise! http://lpaste.net/109553. Full on, all the way! Double Rain-... wait: line-graph. Solution to today's #haskell exercise http://lpaste.net/109597


  • August 19th, 2014: What does it all mean? All the way! No, wait: this is just today's #haskell exercise (backtesting SMA indicator ). http://lpaste.net/109617 Take the monoid and run(State-WriterT), or WAAH! WAAH! I lost 100 corn chips on my investment strategy or, solution: http://lpaste.net/109687 But, as solace, it does come with a pretty picture, illustrating today's solution. Ooh! 

  • August 20th, 2014: Next up for today's #haskell exercise is the Exponential Moving Average. http://lpaste.net/109689 A solution to the E(xponential)M(oving)A(verage) #haskell problem: Stately Conformance http://lpaste.net/109707 


  • August 21st, 2014: My Jeans. No ... I meant: 'GENES'! That's it. Today's #haskell exercise. http://lpaste.net/109749

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