Can we download the notebooks in this series? If so where can we find the links too the notebooks?

Can we download the notebooks in this series? If so where can we find the links too the notebooks?

My final attempt at the PigLatin challenge. The code is much improved since my last submission. It passes all of the tests on the specification, including preserving punctuation + Rohit NamJoshi's Test procedure. I haven't tried to submit to the challenge web page, but will do so later. Any comments welcome: Having never really had a need to process strings before, I found this to be a difficult task...

PigLatin[text_String] := Module[{s = text},

  vlclst = {"a", "e", "i", "o", "u"};
  vuclst = {"A", "E", "I", "O", "U"};
  punclist = {".", ",", ";", ":", "!"};
  lst = StringExtract[s, All];

  StrngReorder[strRO_] :=
   StringInsert[
    StringTake[strRO, 1 - StringLength[strRO]],
    StringPart[strRO, 1],
    If[StringEndsQ[strRO, punclist], -2, -1]
    ];

  StrngStartConsonant[strSC_] :=
   StringFreeQ[
    StringPart[strSC, 1],
    vlclst,
    IgnoreCase -> True
    ];

  StrngAddWay[strAW_] :=
   StringInsert[strAW,
    "way",
    If[StringEndsQ[strAW, punclist], -2, -1]
    ];

  StrngAddAy[strAY_] :=
   StringInsert[
    NestWhile[StrngReorder[#] &, strAY, StrngStartConsonant[#] &],
    "ay",
    If[StringEndsQ[strAY, punclist], -2, -1]
    ];

  StrngMoveFirstVowel[strFV_] :=
   StringInsert[
    StringTake[strFV, 1 - StringLength[strFV]],
    StringTake[strFV, 1],
    If[StringEndsQ[str, punclist], -2, -1]
    ];

  StrngAddAy2[strAY2_] := Module
    [{str = strAY2},
    str = StrngMoveFirstVowel[strAY2];
    StrngAddAy[str]
    ];

  StrngRule2[str2_] := If[
    StringStartsQ[str2, vlclst],
    StrngAddWay[str2],
    str2];

  StrngRule3[str3_] := If[
    StrngStartConsonant[str3],
    StrngAddAy[str3],
    str3];

  StrngRule4[str4_] := If[
    StringStartsQ[str4, vuclst] && 
     StringContainsQ[StringTake[str4, {2, StringLength[str4]}], 
      vlclst],
    StrngAddAy2[str4],
    str4
    ];

  lst = StrngRule4 /@ StrngRule3 /@ StrngRule2 /@ lst;

  StringRiffle[lst]
  ]

Hi Yuliia,

Use pigTests from my answer above to test your solution.

pigTests // 
 KeyValueMap[If[(r = textpiglatin[#1]) == #2, True, Print["Expected: ", #2, " Got: ", r]; False] &]

Expected: If ethay ordway ontainscay onay owercaselay owelsvay, othingnay isway angedchay.

Got: If ethay ordway ontainscay onay owercaselay owels,vay othingnay isway anged.chay

It fails on the sentence with punctuation test.

Thank you. I fixed the code to account for punctuation and cleaned everything up a bit.

Attachments:

PigLatin.nb

Abrita Here's my solution to the PigLatin challenge, It works on all of the sample words and sentences given in the challenge, but when I try and upload it too the Wolfram Challenge Web page it says it runs too slow, but on my machine the timing is all but instantaneous. Any hints on what I've done wrong would be appreciated. I've updated the code, which appears to work, but not on the Wolfram Challenge Web page

PigLatin[text_String] := Module[{s = text},

  vlclst = {"a", "e", "i", "o", "u"};
  vuclst = {"A", "E", "I", "O", "U"};
  lst = TextWords[s];

  StrngReorder[strRO_] := 
   StringTake[strRO, 1 - StringLength[strRO]] <> StringPart[strRO, 1];

  StrngStartConsonant[strSC_] := 
   StringFreeQ[StringPart[strSC, 1], vlclst, IgnoreCase -> True];

  StrngProcess4[str_] := Module[{sg = str},
    sg = StringTake[sg, 1 - StringLength[sg]] <> StringTake[sg, 1];
    NestWhile[StrngReorder[#] &, sg, StrngStartConsonant[#] &] <> "ay"
    ];

  StrngRule2[str2_] := 
   If[StringStartsQ[str2, vlclst], str2 <> "way", str2];

  StrngRule3[str3_] := If[StrngStartConsonant[str3],
    NestWhile[StrngReorder[#] &, str3, StrngStartConsonant[#] &] <> 
     "ay", str3];

  StrngRule4[str4_] := If[
    StringStartsQ[str4, vuclst] && 
     StringContainsQ[StringTake[str4, {2, StringLength[str4]}], 
      vlclst],
    StrngProcess4[str4], str4
    ];

  lst = StrngRule4 /@ StrngRule3 /@ StrngRule2 /@ lst;
  lstjoin = lst[[1]];
  Do[lstjoin = lstjoin <> " " <> lst[[i]], {i, 2, Length[lst]}];
  lstjoin

  ]

PigLatin[x_] :=

 Block[{lowerVowels = {"a", "e", "i", "o", "u"}, consonants}, 
  consonants = {"B", "C", "D", "F", "G", "H", "J", "K", "L", "M", "N",
     "P", "Q", "R", "S", "T", "V", "W", "X", "Y", "Z", "b", "c", "d", 
    "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", 
    "v", "w", "x", "y", "z", "A", "E", "I", "O", "U"};
  StringRiffle[Map[If[StringFreeQ[#, lowerVowels], #,
      If[StringContainsQ[StringTake[#, 1], lowerVowels],
       If[
        Total[Boole[
           StringContainsQ[Characters[#], PunctuationCharacter]]] == 0,
        # <> "way", 
        StringJoin[Drop[Characters[#], -1]] <> "way" <> 
         Last[Characters[x]]],
       If[
        Total[Boole[
           StringContainsQ[Characters[#], PunctuationCharacter]]] == 0,
        StringJoin[Reverse[TakeDrop[Characters[#],

        LengthWhile[
         Boole[StringContainsQ[Characters[#], consonants]], #1 == 
           1 &]
        ]]] <> "ay",
    StringJoin[Reverse[TakeDrop[Drop[Characters[#], -1],

        LengthWhile[
         Boole[StringContainsQ[Characters[#], consonants]], #1 == 
           1 &]
        ]]] <> "ay" <> Last[Characters[#]]]]] &, StringSplit[x]]]]

Cloud version of the code

Hi Aaron,

Languages that use a Lisp-like syntax (Lisp, Scheme, Racket, Clojure, WL, ...) suffer from "bracket/parenthesis hell". I find it hard to understand deeply nested expressions. Good formatting and indenting helps, but you still have to comprehend it from "inside out".

In WL you can use Postfix (//), Composition (@*), RightComposition (/*) and operator forms of functions to write expressions in a left to right order that I find easier to understand..

Consider: "Which of the first 100 prime numbers have digits whose sum is also prime?" Here is one way to answer it using infix notation

Select[Table[Prime[n], {n, 100}], PrimeQ[Total[IntegerDigits[#]]] &]

I find this to be much easier to understand

Table[Prime[n], {n, 100}] // Select[IntegerDigits /* Total /* PrimeQ]

From left to right I read this as "From the first 100 primes select those whose digits when totaled is prime".

Experiment with both styles and see what works best for you.

We didn't get to patterns on Thrusday. We'll look at them tomorrow and then get back to the challenge.

For some reason, my code didn't seem to load, here it goes again, just in case:

PigLatin[x_] :=

 Block[{lowerVowels = {"a", "e", "i", "o", "u"}, consonants}, 
  consonants = {"B", "C", "D", "F", "G", "H", "J", "K", "L", "M", "N",
     "P", "Q", "R", "S", "T", "V", "W", "X", "Y", "Z", "b", "c", "d", 
    "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", 
    "v", "w", "x", "y", "z", "A", "E", "I", "O", "U"};
  StringRiffle[Map[If[StringFreeQ[#, lowerVowels], #,
      If[StringContainsQ[StringTake[#, 1], lowerVowels],
       If[
        Total[Boole[
           StringContainsQ[Characters[#], PunctuationCharacter]]] == 0,
        # <> "way", 
        StringJoin[Drop[Characters[#], -1]] <> "way" <> 
         Last[Characters[x]]],
       If[
        Total[Boole[
           StringContainsQ[Characters[#], PunctuationCharacter]]] == 0,
        StringJoin[Reverse[TakeDrop[Characters[#],

        LengthWhile[
         Boole[StringContainsQ[Characters[#], consonants]], #1 == 
           1 &]
        ]]] <> "ay",
    StringJoin[Reverse[TakeDrop[Drop[Characters[#], -1],

        LengthWhile[
         Boole[StringContainsQ[Characters[#], consonants]], #1 == 
           1 &]
        ]]] <> "ay" <> Last[Characters[#]]]]] &, StringSplit[x]]]]

Hi Abrita,

Using RegularExpression rather than StringPattern.

This converts a single word

pigWord[word_String] := Which[
  ! StringContainsQ[word, RegularExpression["[aeiou]"]],
  word,
  StringMatchQ[word, RegularExpression["^[aeiou].*"]],
  word <> "way",
  True,
  StringReplace[word, RegularExpression["^([^aeiou]+)(.+)"] -> "$2$1ay"]]

To work with the sentence example with punctuation from the challenges page, we have to preserve the punctuation by calling pigWord on the consecutive word characters.

pigLatin[string_String] := StringReplace[string, w : RegularExpression["\\w+"] :> pigWord[w]]

Test cases

pigTests =
  <|
   "Or" -> "Or",
   "owl" -> "owlway",
   "string" -> "ingstray",
   "Aura" -> "uraAay",
   "Ochre" -> "eOchray",
   "or" -> "orway",
   "Agree" -> "eeAgray",
   "agree" -> "agreeway",
   "If the word contains no lowercase vowels, nothing is changed." ->
    "If ethay ordway ontainscay onay owercaselay owelsvay, othingnay isway angedchay.",
   "moves that collection of consonants to the end of the word" ->
    "ovesmay atthay ollectioncay ofway onsonantscay otay ethay endway ofway ethay ordway"
   |>;

Run the test cases

pigTests // KeyValueMap[pigLatin[#1] == #2 &] // FreeQ[False]
(* True *)

Hi! Is it possible to watch the earlier lessons from this week? Thanks, Garfield

[WSG20] Programming Fundamentals Week 1

Attachments:

Challenge.nb

A desktop version of the previous post:

Manipulate[
 Column[{Row[{Column[{Style["Release Title:", color], 
       EntityList[EntityClass["Movie", "StarWarsFranchise"]][[
        releaseNumber]]}], "  ",
     Column[{Style["Director:", color], 
       EntityList[EntityClass["Movie", "StarWarsFranchise"]][[
          releaseNumber]][EntityProperty["Movie", "Director"]][[1]]}],
      "   ",
     Column[{Style["Producer:", color], 
       EntityList[EntityClass["Movie", "StarWarsFranchise"]][[
          releaseNumber]][EntityProperty["Movie", "Producers"]][[1]]}],
     "   ",
     Column[{Style["Production Budgent:", color], 
       EntityClass["Movie", "StarWarsFranchise"][
         EntityProperty["Movie", "ProductionBudget"]][[
        releaseNumber]]}]}],
   Style["Cast and Roles:", color], 
   Grid@Partition[
     Column /@ 
      Transpose[{Keys[
         EntityList[EntityClass["Movie", "StarWarsFranchise"]][[
           releaseNumber]][EntityProperty["Movie", "CastAndRoles"]]], 
        First /@ 
         Values[EntityList[
             EntityClass["Movie", "StarWarsFranchise"]][[
            releaseNumber]][
           EntityProperty["Movie", "CastAndRoles"]]]}], 4]}],
 {releaseNumber, Range@10, ControlType -> Setter}, {releaseNumber, 
  Range@10, Slider}, {color, Purple}]

I can make a collage of the leading actors of each movie.

Here's the code for ten actors (based on Abrita's code):

Manipulate[ ImageCollage[PersonData[movie["Cast"][[Range[10]]], "Image"]],

{movie, EntityList[EntityClass["Movie", "StarWarsFranchise"]]} ]

That results in:

Looking at the coding on this page for the daily challenge from yesterday, many of these things are far more advanced than what was covered in the first lecture yesterday. I think these long pieces of code can bamboozle people, it certainly does for me.

I feel like we went from fairly basic concepts to the multiple lines of code very quickly. For me there needs to be a bit more of a smooth transition.

Daily Challenge (May 5): Make an interactive version of the visualization from the previous day that allows your reader to explore the data--select and compare various features against each other. (Explore a bit yourself and select a few meaningful properties for the list of choices you'd like to offer your reader; don't include ALL the entity properties of the Movie entity).

An actual analysis or comparison of production costs should include the time value of money referenced to some date, otherwise the comparison is invalid... right?

Q: (I'm new to Wolfram curated datasets) Is there a document or notebook associated with each curated dataset that describes how the data was curated? And, like the "daily challenge" problem, how would we know if the money values are referenced to some year's dollars or are just the time value of money for the given date? Besides a document/notebook describing the curation process and source for datasets, it would be nice to have a separate document/notebook that describes the particulars of a given dataset (like how money values should be interpreted), etc.

Here is a class that can be used to get the inflation-adjusted values of production budget at a single valuation date so the resulting comparison is fair:

Now after extracting and massaging the data from this class it can be visualized and compared on a DateHistogram:

Here is a comparison using the value of the dollar, based on Today:

Here is a comparison using the value of the dollar at the time of the release of Mathematica:

My god, the dollar has lost 55% of its value in the past 31 years!

You should receive the links in the daily reminder email for the webinars. If you are not receiving those emails kindly write to wolfram-u@wolfram.com.

In the meantime, here is my code:

a = EntityClass["Movie", "StarWarsFranchise"]["Name"];

y = EntityClass["Movie", "StarWarsFranchise"]["ProductionBudget"]

x = EntityClass["Movie", "StarWarsFranchise"]["ReleaseDate"]

BarChart[y, ChartLabels -> Placed[{x, a}, {Before, After}], BarOrigin -> Left, AxesLabel -> {"Date of release", "Production budget [USD]"}]

Hi Valeriu, I had a DateListPlot in mind. But the fun of using the Wolfram Language is that there are so many ways of doing the same thing. And your chart highlights the information just as well. Thanks for sharing.

Could you please post links to the quizzes mentioned in the session today. Thank you.

You can register for study groups at https://www.wolfram.com/wolfram-u/special-event/study-groups/

For this week specifically: sign up here

Daily Challenge (May 4): A challenge in the spirit of "May the fourth be with you".

Chart the production budget against the release date of the Star Wars movies (from the WL EntityClass "StarWarsFranchise"). Which movie had the lowest production budget?