これはかなり一般的な質問であることは知っていますが、私の問題に役立つ答えを見つけることができませんでした. 似たようなことがあれば、この投稿を削除します。
私は、Kaggle の 5000 ムービー データベースからの movies.csv で Octave と協力しており、予算セルまたは収益セル内のゼロの行をすべて削除します。ファイルから列を読み取る際に問題が発生したため、収益列を予算列の近くにコピー アンド ペーストしました。私の一番の悩み。
更新: マトリックスには数値と文字列の値が含まれており、予算/収益がゼロより大きい行のすべてのデータを保持します。これが理解できることを願って、ここにそのサンプルがあります。既にヘッダーなしでファイルに取り組んでいますが、理解を深めるために残しました。
budget,genres,homepage,id,keywords,original_language,original_title,overview,popularity,production_companies,production_countries,release_date,revenue,runtime,spoken_languages,status,tagline,title,vote_average,vote_count
237000000,"[{""id"": 28, ""name"": ""Action""}, {""id"": 12, ""name"": ""Adventure""}, {""id"": 14, ""name"": ""Fantasy""}, {""id"": 878, ""name"": ""Science Fiction""}]",http://www.avatarmovie.com/,19995,"[{""id"": 1463, ""name"": ""culture clash""}, {""id"": 2964, ""name"": ""future""}, {""id"": 3386, ""name"": ""space war""}, {""id"": 3388, ""name"": ""space colony""}, {""id"": 3679, ""name"": ""society""}, {""id"": 3801, ""name"": ""space travel""}, {""id"": 9685, ""name"": ""futuristic""}, {""id"": 9840, ""name"": ""romance""}, {""id"": 9882, ""name"": ""space""}, {""id"": 9951, ""name"": ""alien""}, {""id"": 10148, ""name"": ""tribe""}, {""id"": 10158, ""name"": ""alien planet""}, {""id"": 10987, ""name"": ""cgi""}, {""id"": 11399, ""name"": ""marine""}, {""id"": 13065, ""name"": ""soldier""}, {""id"": 14643, ""name"": ""battle""}, {""id"": 14720, ""name"": ""love affair""}, {""id"": 165431, ""name"": ""anti war""}, {""id"": 193554, ""name"": ""power relations""}, {""id"": 206690, ""name"": ""mind and soul""}, {""id"": 209714, ""name"": ""3d""}]",en,Avatar,"In the 22nd century, a paraplegic Marine is dispatched to the moon Pandora on a unique mission, but becomes torn between following orders and protecting an alien civilization.",150.437577,"[{""name"": ""Ingenious Film Partners"", ""id"": 289}, {""name"": ""Twentieth Century Fox Film Corporation"", ""id"": 306}, {""name"": ""Dune Entertainment"", ""id"": 444}, {""name"": ""Lightstorm Entertainment"", ""id"": 574}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}, {""iso_3166_1"": ""GB"", ""name"": ""United Kingdom""}]",2009-12-10,2787965087,162,"[{""iso_639_1"": ""en"", ""name"": ""English""}, {""iso_639_1"": ""es"", ""name"": ""Espa\u00f1ol""}]",Released,Enter the World of Pandora.,Avatar,7.2,11800
300000000,"[{""id"": 12, ""name"": ""Adventure""}, {""id"": 14, ""name"": ""Fantasy""}, {""id"": 28, ""name"": ""Action""}]",http://disney.go.com/disneypictures/pirates/,285,"[{""id"": 270, ""name"": ""ocean""}, {""id"": 726, ""name"": ""drug abuse""}, {""id"": 911, ""name"": ""exotic island""}, {""id"": 1319, ""name"": ""east india trading company""}, {""id"": 2038, ""name"": ""love of one's life""}, {""id"": 2052, ""name"": ""traitor""}, {""id"": 2580, ""name"": ""shipwreck""}, {""id"": 2660, ""name"": ""strong woman""}, {""id"": 3799, ""name"": ""ship""}, {""id"": 5740, ""name"": ""alliance""}, {""id"": 5941, ""name"": ""calypso""}, {""id"": 6155, ""name"": ""afterlife""}, {""id"": 6211, ""name"": ""fighter""}, {""id"": 12988, ""name"": ""pirate""}, {""id"": 157186, ""name"": ""swashbuckler""}, {""id"": 179430, ""name"": ""aftercreditsstinger""}]",en,Pirates of the Caribbean: At World's End,"Captain Barbossa, long believed to be dead, has come back to life and is headed to the edge of the Earth with Will Turner and Elizabeth Swann. But nothing is quite as it seems.",139.082615,"[{""name"": ""Walt Disney Pictures"", ""id"": 2}, {""name"": ""Jerry Bruckheimer Films"", ""id"": 130}, {""name"": ""Second Mate Productions"", ""id"": 19936}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2007-05-19,961000000,169,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,"At the end of the world, the adventure begins.",Pirates of the Caribbean: At World's End,6.9,4500
245000000,"[{""id"": 28, ""name"": ""Action""}, {""id"": 12, ""name"": ""Adventure""}, {""id"": 80, ""name"": ""Crime""}]",http://www.sonypictures.com/movies/spectre/,206647,"[{""id"": 470, ""name"": ""spy""}, {""id"": 818, ""name"": ""based on novel""}, {""id"": 4289, ""name"": ""secret agent""}, {""id"": 9663, ""name"": ""sequel""}, {""id"": 14555, ""name"": ""mi6""}, {""id"": 156095, ""name"": ""british secret service""}, {""id"": 158431, ""name"": ""united kingdom""}]",en,Spectre,"A cryptic message from Bond’s past sends him on a trail to uncover a sinister organization. While M battles political forces to keep the secret service alive, Bond peels back the layers of deceit to reveal the terrible truth behind SPECTRE.",107.376788,"[{""name"": ""Columbia Pictures"", ""id"": 5}, {""name"": ""Danjaq"", ""id"": 10761}, {""name"": ""B24"", ""id"": 69434}]","[{""iso_3166_1"": ""GB"", ""name"": ""United Kingdom""}, {""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2015-10-26,880674609,148,"[{""iso_639_1"": ""fr"", ""name"": ""Fran\u00e7ais""}, {""iso_639_1"": ""en"", ""name"": ""English""}, {""iso_639_1"": ""es"", ""name"": ""Espa\u00f1ol""}, {""iso_639_1"": ""it"", ""name"": ""Italiano""}, {""iso_639_1"": ""de"", ""name"": ""Deutsch""}]",Released,A Plan No One Escapes,Spectre,6.3,4466
250000000,"[{""id"": 28, ""name"": ""Action""}, {""id"": 80, ""name"": ""Crime""}, {""id"": 18, ""name"": ""Drama""}, {""id"": 53, ""name"": ""Thriller""}]",http://www.thedarkknightrises.com/,49026,"[{""id"": 849, ""name"": ""dc comics""}, {""id"": 853, ""name"": ""crime fighter""}, {""id"": 949, ""name"": ""terrorist""}, {""id"": 1308, ""name"": ""secret identity""}, {""id"": 1437, ""name"": ""burglar""}, {""id"": 3051, ""name"": ""hostage drama""}, {""id"": 3562, ""name"": ""time bomb""}, {""id"": 6969, ""name"": ""gotham city""}, {""id"": 7002, ""name"": ""vigilante""}, {""id"": 9665, ""name"": ""cover-up""}, {""id"": 9715, ""name"": ""superhero""}, {""id"": 9990, ""name"": ""villainess""}, {""id"": 10044, ""name"": ""tragic hero""}, {""id"": 13015, ""name"": ""terrorism""}, {""id"": 14796, ""name"": ""destruction""}, {""id"": 18933, ""name"": ""catwoman""}, {""id"": 156082, ""name"": ""cat burglar""}, {""id"": 156395, ""name"": ""imax""}, {""id"": 173272, ""name"": ""flood""}, {""id"": 179093, ""name"": ""criminal underworld""}, {""id"": 230775, ""name"": ""batman""}]",en,The Dark Knight Rises,"Following the death of District Attorney Harvey Dent, Batman assumes responsibility for Dent's crimes to protect the late attorney's reputation and is subsequently hunted by the Gotham City Police Department. Eight years later, Batman encounters the mysterious Selina Kyle and the villainous Bane, a new terrorist leader who overwhelms Gotham's finest. The Dark Knight resurfaces to protect a city that has branded him an enemy.",112.31295,"[{""name"": ""Legendary Pictures"", ""id"": 923}, {""name"": ""Warner Bros."", ""id"": 6194}, {""name"": ""DC Entertainment"", ""id"": 9993}, {""name"": ""Syncopy"", ""id"": 9996}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2012-07-16,1084939099,165,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,The Legend Ends,The Dark Knight Rises,7.6,9106
260000000,"[{""id"": 28, ""name"": ""Action""}, {""id"": 12, ""name"": ""Adventure""}, {""id"": 878, ""name"": ""Science Fiction""}]",http://movies.disney.com/john-carter,49529,"[{""id"": 818, ""name"": ""based on novel""}, {""id"": 839, ""name"": ""mars""}, {""id"": 1456, ""name"": ""medallion""}, {""id"": 3801, ""name"": ""space travel""}, {""id"": 7376, ""name"": ""princess""}, {""id"": 9951, ""name"": ""alien""}, {""id"": 10028, ""name"": ""steampunk""}, {""id"": 10539, ""name"": ""martian""}, {""id"": 10685, ""name"": ""escape""}, {""id"": 161511, ""name"": ""edgar rice burroughs""}, {""id"": 163252, ""name"": ""alien race""}, {""id"": 179102, ""name"": ""superhuman strength""}, {""id"": 190320, ""name"": ""mars civilization""}, {""id"": 195446, ""name"": ""sword and planet""}, {""id"": 207928, ""name"": ""19th century""}, {""id"": 209714, ""name"": ""3d""}]",en,John Carter,"John Carter is a war-weary, former military captain who's inexplicably transported to the mysterious and exotic planet of Barsoom (Mars) and reluctantly becomes embroiled in an epic conflict. It's a world on the brink of collapse, and Carter rediscovers his humanity when he realizes the survival of Barsoom and its people rests in his hands.",43.926995,"[{""name"": ""Walt Disney Pictures"", ""id"": 2}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2012-03-07,284139100,132,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,"Lost in our world, found in another.",John Carter,6.1,2124
258000000,"[{""id"": 14, ""name"": ""Fantasy""}, {""id"": 28, ""name"": ""Action""}, {""id"": 12, ""name"": ""Adventure""}]",http://www.sonypictures.com/movies/spider-man3/,559,"[{""id"": 851, ""name"": ""dual identity""}, {""id"": 1453, ""name"": ""amnesia""}, {""id"": 1965, ""name"": ""sandstorm""}, {""id"": 2038, ""name"": ""love of one's life""}, {""id"": 3446, ""name"": ""forgiveness""}, {""id"": 3986, ""name"": ""spider""}, {""id"": 4391, ""name"": ""wretch""}, {""id"": 4959, ""name"": ""death of a friend""}, {""id"": 5776, ""name"": ""egomania""}, {""id"": 5789, ""name"": ""sand""}, {""id"": 5857, ""name"": ""narcism""}, {""id"": 6062, ""name"": ""hostility""}, {""id"": 8828, ""name"": ""marvel comic""}, {""id"": 9663, ""name"": ""sequel""}, {""id"": 9715, ""name"": ""superhero""}, {""id"": 9748, ""name"": ""revenge""}]",en,Spider-Man 3,"The seemingly invincible Spider-Man goes up against an all-new crop of villain – including the shape-shifting Sandman. While Spider-Man’s superpowers are altered by an alien organism, his alter ego, Peter Parker, deals with nemesis Eddie Brock and also gets caught up in a love triangle.",115.699814,"[{""name"": ""Columbia Pictures"", ""id"": 5}, {""name"": ""Laura Ziskin Productions"", ""id"": 326}, {""name"": ""Marvel Enterprises"", ""id"": 19551}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2007-05-01,890871626,139,"[{""iso_639_1"": ""en"", ""name"": ""English""}, {""iso_639_1"": ""fr"", ""name"": ""Fran\u00e7ais""}]",Released,The battle within.,Spider-Man 3,5.9,3576
260000000,"[{""id"": 16, ""name"": ""Animation""}, {""id"": 10751, ""name"": ""Family""}]",http://disney.go.com/disneypictures/tangled/,38757,"[{""id"": 1562, ""name"": ""hostage""}, {""id"": 2343, ""name"": ""magic""}, {""id"": 2673, ""name"": ""horse""}, {""id"": 3205, ""name"": ""fairy tale""}, {""id"": 4344, ""name"": ""musical""}, {""id"": 7376, ""name"": ""princess""}, {""id"": 10336, ""name"": ""animation""}, {""id"": 33787, ""name"": ""tower""}, {""id"": 155658, ""name"": ""blonde woman""}, {""id"": 162219, ""name"": ""selfishness""}, {""id"": 163545, ""name"": ""healing power""}, {""id"": 179411, ""name"": ""based on fairy tale""}, {""id"": 179431, ""name"": ""duringcreditsstinger""}, {""id"": 215258, ""name"": ""healing gift""}, {""id"": 234183, ""name"": ""animal sidekick""}]",en,Tangled,"When the kingdom's most wanted-and most charming-bandit Flynn Rider hides out in a mysterious tower, he's taken hostage by Rapunzel, a beautiful and feisty tower-bound teen with 70 feet of magical, golden hair. Flynn's curious captor, who's looking for her ticket out of the tower where she's been locked away for years, strikes a deal with the handsome thief and the unlikely duo sets off on an action-packed escapade, complete with a super-cop horse, an over-protective chameleon and a gruff gang of pub thugs.",48.681969,"[{""name"": ""Walt Disney Pictures"", ""id"": 2}, {""name"": ""Walt Disney Animation Studios"", ""id"": 6125}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2010-11-24,591794936,100,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,They're taking adventure to new lengths.,Tangled,7.4,3330
280000000,"[{""id"": 28, ""name"": ""Action""}, {""id"": 12, ""name"": ""Adventure""}, {""id"": 878, ""name"": ""Science Fiction""}]",http://marvel.com/movies/movie/193/avengers_age_of_ultron,99861,"[{""id"": 8828, ""name"": ""marvel comic""}, {""id"": 9663, ""name"": ""sequel""}, {""id"": 9715, ""name"": ""superhero""}, {""id"": 9717, ""name"": ""based on comic book""}, {""id"": 10629, ""name"": ""vision""}, {""id"": 155030, ""name"": ""superhero team""}, {""id"": 179431, ""name"": ""duringcreditsstinger""}, {""id"": 180547, ""name"": ""marvel cinematic universe""}, {""id"": 209714, ""name"": ""3d""}]",en,Avengers: Age of Ultron,"When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth’s Mightiest Heroes are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure.",134.279229,"[{""name"": ""Marvel Studios"", ""id"": 420}, {""name"": ""Prime Focus"", ""id"": 15357}, {""name"": ""Revolution Sun Studios"", ""id"": 76043}]","[{""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2015-04-22,1405403694,141,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,A New Age Has Come.,Avengers: Age of Ultron,7.3,6767
250000000,"[{""id"": 12, ""name"": ""Adventure""}, {""id"": 14, ""name"": ""Fantasy""}, {""id"": 10751, ""name"": ""Family""}]",http://harrypotter.warnerbros.com/harrypotterandthehalf-bloodprince/dvd/index.html,767,"[{""id"": 616, ""name"": ""witch""}, {""id"": 2343, ""name"": ""magic""}, {""id"": 3872, ""name"": ""broom""}, {""id"": 3884, ""name"": ""school of witchcraft""}, {""id"": 6333, ""name"": ""wizardry""}, {""id"": 10164, ""name"": ""apparition""}, {""id"": 10791, ""name"": ""teenage crush""}, {""id"": 12564, ""name"": ""werewolf""}]",en,Harry Potter and the Half-Blood Prince,"As Harry begins his sixth year at Hogwarts, he discovers an old book marked as 'Property of the Half-Blood Prince', and begins to learn more about Lord Voldemort's dark past.",98.885637,"[{""name"": ""Warner Bros."", ""id"": 6194}, {""name"": ""Heyday Films"", ""id"": 7364}]","[{""iso_3166_1"": ""GB"", ""name"": ""United Kingdom""}, {""iso_3166_1"": ""US"", ""name"": ""United States of America""}]",2009-07-07,933959197,153,"[{""iso_639_1"": ""en"", ""name"": ""English""}]",Released,Dark Secrets Revealed,Harry Potter and the Half-Blood Prince,7.4,5293
したがって、これは私のコードであり、理解できるパターンなしで多くのゼロを含む新しいファイルを出力します (またはそう思われます)。
fid = fopen('original_filepath', 'r');
fout = fopen('new_filepath', 'w+');
tline = fgetl(fid);
while ~feof(fid) #here at first I used ischar but
#it returned an invalid stream number for the ending tline
dollars = strread(tline, '%f', 'delimiter', ',');
budget = dollars(1);
revenue = dollars(2);
if budget = 0 || revenue = 0
fprintf(fout, '%s\n', tline);
end
tline = fgetl(fid);
end
fclose(fid);
fclose(fout);
strread推奨されていないことはわかっていtextscanますが、コンテンツの分割にはさらに問題があります。dollars(k)または、本当に便利だと思うのようなものを持っていることに夢中になっているのかもしれません。