{"id":1637,"date":"2016-05-30T08:51:12","date_gmt":"2016-05-30T00:51:12","guid":{"rendered":"http:\/\/si.secda.info\/wenft\/?page_id=1637"},"modified":"2016-06-04T11:00:05","modified_gmt":"2016-06-04T03:00:05","slug":"principal-component-analysis","status":"publish","type":"page","link":"https:\/\/si.secda.info\/wenft\/?page_id=1637","title":{"rendered":"Principal Component Analysis"},"content":{"rendered":"<p>Principal Component Analysis<br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/tmApJUWWnyI\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_bSMW1Q9_Ks\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/4zbUcgfycTU\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/G7pZzsFVaYg\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/xNTsAVj0t7U\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/F-nfsSq42ow\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><br \/>\n1. linear decomposion: SVD<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/f9mZ8dSrVJA\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><br \/>\n1.standardized data=correlation matrix<br \/>\n2.principal=factor<br \/>\n3.not rotation<br \/>\n4.factor loading=correlation(z,f)<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/hnzW8UxQlvo?list=PLRW9kMvtNZOjaStLK9ldf_Yc8MB6TkCUx\" height=\"360\" width=\"640\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<p>I think there are two points about factor analysis and one point about principal component analysis.<\/p>\n<p>Factor analysis:<br \/>\n1.replicated correlations from factor loading cross products sums between variables.<br \/>\n2.measurement error variance\/item reliabilities\/commonalities from variable&#8217;s factor loading squared sum<\/p>\n<p>Principal component analysis:<br \/>\n1.Principal componetns are the linear combinarions of original variables based eigen vectors and explain the original variables&#8217; variances.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Principal Component Analysis 1. linear d<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"tags":[],"class_list":["post-1637","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/pages\/1637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1637"}],"version-history":[{"count":11,"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/pages\/1637\/revisions"}],"predecessor-version":[{"id":1650,"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=\/wp\/v2\/pages\/1637\/revisions\/1650"}],"wp:attachment":[{"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1637"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/si.secda.info\/wenft\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}