{"id":2259,"date":"2017-11-26T13:44:47","date_gmt":"2017-11-26T16:44:47","guid":{"rendered":"http:\/\/www.geekosas.com\/?p=2259"},"modified":"2017-11-26T13:45:41","modified_gmt":"2017-11-26T16:45:41","slug":"step-forward-attribute-selection-en-r","status":"publish","type":"post","link":"https:\/\/geekosas.com\/index.php\/es\/2017\/11\/26\/step-forward-attribute-selection-en-r\/","title":{"rendered":"Step Forward Attribute Selection en R"},"content":{"rendered":"<p>Hice un v\u00eddeo en ingles que explica como programar un step forward attribute selecion para regresiones lineales en R.<\/p>\n<p><iframe loading=\"lazy\"  id=\"_ytid_17895\"  width=\"480\" height=\"270\"  data-origwidth=\"480\" data-origheight=\"270\" src=\"https:\/\/www.youtube.com\/embed\/P5ufV7ZqTUk?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Hice un v\u00eddeo en ingles que explica como programar un step forward attribute selecion para regresiones lineales en R. &nbsp;<\/p>\n<\/div>","protected":false},"author":1,"featured_media":2261,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[],"class_list":["post-2259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/geekosas.com\/wp-content\/uploads\/2017\/11\/400px-Linear_regression.svg_.png?fit=400%2C265&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8vjqF-Ar","jetpack-related-posts":[{"id":2220,"url":"https:\/\/geekosas.com\/index.php\/es\/2017\/10\/15\/r-vs-ms-open-r\/","url_meta":{"origin":2259,"position":0},"title":"R vs MS open R","author":"Daniel Fischer","date":"2017-10-15","format":false,"excerpt":"Microsoft se ha dado cuenta del poder de R, por lo que la ha integrado a sus sistemas, incluido Power BI y SQL Server 2017, Microsoft sac\u00f3 una versi\u00f3n de R gratuita con algunas mejoras, entre ellas est\u00e1n la conecci\u00f3n nativa SQL Server, versionamiento de paquetes en MRAN (Microsoft Cran)\u2026","rel":"","context":"In &quot;Sin categor\u00eda&quot;","block_context":{"text":"Sin categor\u00eda","link":"https:\/\/geekosas.com\/index.php\/category\/sin-categoria\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.geekosas.com\/wp-content\/uploads\/2017\/10\/lm-1024x932.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.geekosas.com\/wp-content\/uploads\/2017\/10\/lm-1024x932.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.geekosas.com\/wp-content\/uploads\/2017\/10\/lm-1024x932.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.geekosas.com\/wp-content\/uploads\/2017\/10\/lm-1024x932.png?resize=700%2C400 2x"},"classes":[]},{"id":2200,"url":"https:\/\/geekosas.com\/index.php\/es\/2017\/09\/24\/comunidad-de-usuario-r-en-chile\/","url_meta":{"origin":2259,"position":1},"title":"Comunidad de usuario R en Chile","author":"Daniel Fischer","date":"2017-09-24","format":false,"excerpt":"Existe un grupo muy activo de usuario R en Meetup,\u00a0https:\/\/www.meetup.com\/useRchile\/\u00a0Los cuales adem\u00e1s tienen un Blog en\u00a0http:\/\/www.userchile.cl o en su grupo de Meetup En cada reuni\u00f3n exponen Data Scientists y hablan de sus trabajos, todos lo v\u00eddeos est\u00e1n disponibles en el Blog o en el Vlog (Youtube), para los que est\u00e1n\u2026","rel":"","context":"In &quot;Sin categor\u00eda&quot;","block_context":{"text":"Sin categor\u00eda","link":"https:\/\/geekosas.com\/index.php\/category\/sin-categoria\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/geekosas.com\/wp-content\/uploads\/2017\/09\/600_454793595.png?fit=600%2C200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/geekosas.com\/wp-content\/uploads\/2017\/09\/600_454793595.png?fit=600%2C200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/geekosas.com\/wp-content\/uploads\/2017\/09\/600_454793595.png?fit=600%2C200&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":2212,"url":"https:\/\/geekosas.com\/index.php\/es\/2017\/10\/14\/sparse-matrix-en-r\/","url_meta":{"origin":2259,"position":2},"title":"Sparse Matrix en R","author":"Daniel Fischer","date":"2017-10-14","format":false,"excerpt":"Los valores 0 en las matrices son muy frecuentes, en especial en las variables dummy, por lo que\u00a0en R existe un paquete llamado Matrix el cual permite crear matrices sparse, en otras palabras, matrices que no utilizan memoria cuando el valor de un elemento es 0. 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