{"id":38880,"date":"2019-10-31T22:26:31","date_gmt":"2019-10-31T19:26:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii\/"},"modified":"2019-10-31T22:26:31","modified_gmt":"2019-10-31T19:26:31","slug":"nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii","title":{"rendered":"Pythoni skripti puudus v\u00f5is viia valede tulemusteni enam kui 100 keemia publikatsioonis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Hawaii \u00fclikooli doktorant avastas<\/a><\/noindex> Pythoni skripti probleem, mida kasutatakse arvutuste jaoks keemilise nihke<\/a><\/noindex>, mis m\u00e4\u00e4rab uuritava aine keemilise struktuuri spectraalsete anal\u00fc\u00fcsisignaalide meetodiga nukleaars-magnetresonantsi<\/a><\/noindex>. \u00dche oma professorite uuringute tulemuste verifitseerimise k\u00e4igus m\u00e4rkis doktorant, et skripti k\u00e4ivitamisel erinevates operatsioonis\u00fcsteemides sama andmekogumi puhul saadi erinev tulemus.<\/p>\n

N\u00e4iteks, kui k\u00e4ivitati macOS 10.14 ja Ubuntu 16.04, andis testitud andmekogumi jaoks skript v\u00e4ljastas<\/a><\/noindex> vale v\u00e4\u00e4rtuse 172.4 asemel 173.2. Skript sisaldab umbes 1000 rida koodi ja on kasutusel keemikute poolt alates 2014. aastast. Koodi uurimine n\u00e4itas, et vale v\u00e4\u00e4rtuse v\u00e4ljastamine oli tingitud<\/a><\/noindex> failide sorteerimise erinevustest erinevates operatsioonis\u00fcsteemides. Skripti autorid eeldasid, et funktsioon «glob()<\/a><\/noindex>» tagastab alati failid, mis on sorteeritud nime j\u00e4rgi, samas kui globi dokumentatsioonis on m\u00e4rgitud, et v\u00e4ljastamise j\u00e4rjekord ei ole tagatud. Parandus seisnes list_of_files.sort() lisamises p\u00e4rast glob() v\u00e4ljakutsumist.<\/p>\n

\"Pythoni<\/a><\/noindex><\/center><\/p>\n

Leitud probleem t\u00f5i kahtluse alla enam kui 100 keemia publikatsiooni korrektsuse, mille j\u00e4reldused p\u00f5hinesid arvutatud skripti keemilisel nihkel. Ei ole teada t\u00e4pset uurimiste arvu, kus skripti kasutati, kuid selle kodeeritud publikatsioon on viidatud 158 t\u00f6\u00f6sse. Nende t\u00f6\u00f6de autoritele soovitati hinnata skripti t\u00f6\u00f6korrasolekut rakendatud arvutis\u00fcsteemides ja teha \u00fcmberarvestus, et veenduda arvutatud v\u00e4\u00e4rtuste \u00f5igsuses. See juhtum on suurep\u00e4rane n\u00e4ide sellest, et mitte ainult eksperimendi kvaliteet, vaid ka saadud andmete korrektne t\u00f6\u00f6tlemine programmides, mida on varem laialdaselt kasutatud, v\u00f5ib m\u00f5jutada l\u00f5pptulemust.
\nToo peamine probleem.<\/p>\n

<\/a><\/noindex><\/p>\n

Allikas: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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