{"id":232,"date":"2013-07-05T08:17:07","date_gmt":"2013-07-05T07:17:07","guid":{"rendered":"http:\/\/spss.wp.xpkode.com\/?p=232"},"modified":"2013-07-05T08:17:07","modified_gmt":"2013-07-05T07:17:07","slug":"escolha-aleatoria-de-parte-da-amostra","status":"publish","type":"post","link":"http:\/\/www.dicas-spss.com\/?p=232","title":{"rendered":"Escolha aleat\u00f3ria de parte da amostra"},"content":{"rendered":"<p>Quando se torna necess\u00e1rio trabalhar apenas com uma parte da amostra, teremos de seleccionar casos. Aqui apresenta-se um exemplo de selec\u00e7\u00e3o de metade da amostra.<\/p>\n<p>Seleccionam-se os dados, conforme os comandos da imagem.<\/p>\n<p><a href=\"http:\/\/spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select_cases_0.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-233 aligncenter\" alt=\"select_cases_0\" src=\"http:\/\/spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select_cases_0.png\" width=\"551\" height=\"543\" srcset=\"http:\/\/dicas-spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select_cases_0.png 551w, http:\/\/dicas-spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select_cases_0-300x295.png 300w\" sizes=\"(max-width: 551px) 100vw, 551px\" \/><\/a><\/p>\n<p>Na nova janela, em <span style=\"text-decoration: underline\">Select<\/span> escolhe-se &#8220;Random sample of cases&#8221; e carrega-se no bot\u00e3o &#8220;Sample&#8221;. Na nova janela escreve-se a percentagem de casos que se pretende seleccionar.<\/p>\n<p>Em Output, escolhe-se &#8220;Copy selected cases to a new dataset&#8221; e escreve-se um novo nome para a nova base de dados.<\/p>\n<p>Carregar em &#8220;Continue&#8221; e &#8220;Ok&#8221;.<\/p>\n<p><a href=\"http:\/\/spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select-0.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-235\" alt=\"select-0\" src=\"http:\/\/spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select-0.jpg\" width=\"974\" height=\"644\" srcset=\"http:\/\/dicas-spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select-0.jpg 974w, http:\/\/dicas-spss.wp.w3.pt\/wp-content\/uploads\/sites\/4\/2013\/07\/select-0-300x198.jpg 300w\" sizes=\"(max-width: 974px) 100vw, 974px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quando se torna necess\u00e1rio trabalhar apenas com uma parte da amostra, teremos de seleccionar casos. Aqui apresenta-se um exemplo de selec\u00e7\u00e3o de metade da amostra. Seleccionam-se os dados, conforme os comandos da imagem. Na nova janela, em Select escolhe-se &#8220;Random sample of cases&#8221; e carrega-se no bot\u00e3o &#8220;Sample&#8221;. Na nova janela escreve-se a percentagem de [&hellip;]<\/p>\n","protected":false},"author":22,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/posts\/232"}],"collection":[{"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=232"}],"version-history":[{"count":2,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions"}],"predecessor-version":[{"id":237,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=\/wp\/v2\/posts\/232\/revisions\/237"}],"wp:attachment":[{"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=232"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dicas-spss.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}