{"id":37779,"date":"2026-09-08T18:01:34","date_gmt":"2026-09-08T16:01:34","guid":{"rendered":"https:\/\/www.vita.sk\/?post_type=product&#038;p=37779"},"modified":"2026-09-08T20:21:47","modified_gmt":"2026-09-08T18:21:47","slug":"online-kurz-python-polars-analyza-spracovanie-dat","status":"publish","type":"product","link":"https:\/\/www.vita.sk\/cs\/online-kurz-python-polars-analyza-spracovanie-dat\/","title":{"rendered":"Online kurz Kni\u017enica Polars v Pythone"},"content":{"rendered":"<p>Online kurz Python Polars &#8211; Anal\u00fdza a Spracovanie D\u00e1t je pre v\u00e1s ide\u00e1lny, ak sa chcete nau\u010di\u0165 efekt\u00edvne spracov\u00e1va\u0165 a analyzova\u0165 tabu\u013ekov\u00e9 \u00fadaje pomocou kni\u017enice Polars v Pythone.<strong> Ide o certifikovan\u00fd online kurz na Python Polars.<\/strong> V \u00favode sa dozviete, \u010do je kni\u017enica Polars, na \u010do sa pou\u017e\u00edva a ako s \u0148ou za\u010da\u0165 pracova\u0165. Priprav\u00edme si prostredie a predstav\u00edme si d\u00e1tov\u00e9 r\u00e1mce (DataFrames), ktor\u00e9 sl\u00fa\u017eia na organiz\u00e1ciu a spracovanie \u00fadajov v riadkoch a st\u013apcoch. Nau\u010d\u00edte sa orientova\u0165 v mo\u017enostiach Polars a porovn\u00e1me jeho vyu\u017eitie s kni\u017enicou Pandas a n\u00e1strojom Apache Spark. V\u00fdznamn\u00fa \u010das\u0165 kurzu venujeme Apache Parquet a Apache Arrow, ich vlastnostiam a vyu\u017eitiu pri pr\u00e1ci s rozsiahlej\u0161\u00edmi \u00fadajmi. Vysvetl\u00edme si rozdiel medzi ukladan\u00edm d\u00e1t do s\u00faborov a ich reprezent\u00e1ciou v pam\u00e4ti, ako aj prepojenie Apache Arrow s form\u00e1tom Feather. Prakticky si uk\u00e1\u017eeme exporty do Microsoft Excelu a form\u00e1tu Feather, ktor\u00e9 vyu\u017eijete pri odovzd\u00e1van\u00ed v\u00fdsledkov alebo \u010fal\u0161om spracovan\u00ed \u00fadajov. Pri s\u00faboroch Parquet porovn\u00e1me kompresn\u00e9 algoritmy Snappy, Gzip a Brotli z poh\u013eadu ve\u013ekosti s\u00faborov a r\u00fdchlosti pr\u00e1ce s d\u00e1tami. Obozn\u00e1mite sa aj s prostred\u00edm Google Colab a mo\u017enos\u0165ami nastavenia grafick\u00e9ho procesora (GPU \u2013 Graphics Processing Unit). Z\u00edskan\u00e9 poznatky vyu\u017eijete pri pr\u00e1ci s firemn\u00fdmi \u00fadajmi, pr\u00edprave analytick\u00fdch podkladov a v\u00fdbere vhodn\u00fdch d\u00e1tov\u00fdch form\u00e1tov. Ak sa chcete skuto\u010dne nau\u010di\u0165 pou\u017e\u00edva\u0165 kni\u017enicu Polars v Pythone na anal\u00fdzu a spracovanie d\u00e1t, tak toto je ide\u00e1lny vstupn\u00fd online kurz pre v\u00e1s.<\/p>\n<p>Rich snippety<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Online kurz Python Polars &#8211; Anal\u00fdza a Spracovanie D\u00e1t v\u00e1s nau\u010d\u00ed pou\u017e\u00edva\u0165 kni\u017enicu Polars na pr\u00e1cu s tabu\u013ekov\u00fdmi \u00fadajmi, porovna\u0165 jej mo\u017enosti s Pandas a Apache Spark, orientova\u0165 sa v Parquet a Apache Arrow, exportova\u0165 d\u00e1ta do Microsoft Excelu a form\u00e1tu Feather, porovna\u0165 kompresn\u00e9 algoritmy Snappy, Gzip a Brotli a pracova\u0165 v prostred\u00ed Google Colab s mo\u017enos\u0165ami nastavenia GPU.","protected":false},"author":4,"featured_media":36274,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[722,106,49],"product_tag":[1053,1054,1055,1056,1057,1058,1059,1060,1061,188,212,1052],"class_list":{"0":"post-37779","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-online-kurzy-velke-data-big-data","7":"product_cat-online-kurzy-python","8":"product_cat-online-kurzy-databazy-statistika-analytika","9":"product_tag-datova-analyza","10":"product_tag-spracovanie-dat","11":"product_tag-data-science","12":"product_tag-big-data","13":"product_tag-parquet","14":"product_tag-apache-arrow","15":"product_tag-feather","16":"product_tag-pandas","17":"product_tag-google-colab","18":"product_tag-databazy-a-analytika","19":"product_tag-python","20":"product_tag-polars","22":"first","23":"instock","24":"sale","25":"sold-individually","26":"taxable","27":"shipping-taxable","28":"purchasable","29":"product-type-simple"},"yoast_head":"<!-- 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