{"id":200,"date":"2021-12-10T08:49:44","date_gmt":"2021-12-10T00:49:44","guid":{"rendered":"http:\/\/purplepoolobservatory.com\/?p=200"},"modified":"2021-12-10T08:49:44","modified_gmt":"2021-12-10T00:49:44","slug":"pandas%e7%94%9f%e6%88%90%e6%97%a5%e6%9c%9f%e5%ba%8f%e5%88%97","status":"publish","type":"post","link":"https:\/\/purplepoolobservatory.com\/?p=200","title":{"rendered":"pandas\u751f\u6210\u65e5\u671f\u5e8f\u5217"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>pandas\u7684date_range\u51fd\u6570\u53ef\u4ee5\u65b9\u4fbf\u7684\u751f\u6210\u65e5\u671f\u5e8f\u5217\r\n\r\nfrom datetime import datetime\u200b\r\n\r\nimport pandas as pd\r\n\r\nt_series=pd.date_range(start=datetime(2000,1,1),end=datetime(2000,12,31),freq='D')\r\n\r\n\u8fd9\u91cc\u751f\u6210\u4ecestart\u5230end\u6309\u5929\u7684\u65e5\u671f\u5e8f\u5217\uff0c\u5982\u679cfreq\u662fM\uff0c\u5219\u662f\u6bcf\u4e2a\u81ea\u7136\u6708\u7684\u6708\u5e95\u200b\r\n\r\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u73b0\u5728\u7684t_series\u5e76\u4e0d\u662fdatetime\u7c7b\u578b\u7684\u5e8f\u5217\uff0c\u800c\u662f\u200btimestamp\u7c7b\u578b\u7684\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u7684\u65f6\u5019\u8fd8\u8981\u6ce8\u610f\u8f6c\u6362\uff0c\u91c7\u7528map\u548c\u533f\u540d\u51fd\u6570\u53ef\u4ee5\u8fdb\u884c\u65b9\u4fbf\u7684\u8f6c\u6362\r\n\r\nt_series_new=t_series.map(lambda t:t.date())\u200b\r\n\r\n\u6b64\u65f6\u7684t_series_new\u5c31\u662fdate\u7c7b\u578b\u7684\u4e86\uff0c\u8fd8\u9700\u8981\u6ce8\u610fdatetime\u548cdate\u7c7b\u578b\u662f\u4e0d\u53ef\u4ee5\u8fdb\u884c\u6bd4\u8f83\u7684\uff0c\u8981\u8f6c\u6210\u4e00\u81f4\u624d\u53ef\u4ee5\u3002\u200b<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-200","post","type-post","status-publish","format-gallery","hentry","category-technology","post_format-post-format-gallery"],"_links":{"self":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=200"}],"version-history":[{"count":1,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/200\/revisions"}],"predecessor-version":[{"id":201,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=\/wp\/v2\/posts\/200\/revisions\/201"}],"wp:attachment":[{"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplepoolobservatory.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}