{"id":221095,"date":"2020-11-23T19:14:44","date_gmt":"2020-11-23T11:14:44","guid":{"rendered":"http:\/\/4563.org\/?p=221095"},"modified":"2020-11-23T19:14:44","modified_gmt":"2020-11-23T11:14:44","slug":"100g-%e6%95%b0%e6%8d%ae%e5%a6%82%e4%bd%95%e5%85%88%e9%9a%8f%e6%9c%ba%e8%af%bb%e5%8f%96-1","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=221095","title":{"rendered":"100G \u6570\u636e\u5982\u4f55\u5148\u968f\u673a\u8bfb\u53d6 1%?"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  100G \u6570\u636e\u5982\u4f55\u5148\u968f\u673a\u8bfb\u53d6 1%?               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : fanqieipnet <\/span>  <span><i><\/i> 4<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\">                        100G \u6570\u636e\u5982\u4f55\u5148\u968f\u673a\u8bfb\u53d6 1%?\u4eca\u5929\u756a\u8304\u52a0\u901f\u5c31\u6765\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e0b\u3002<\/p>\n<p>\u3000\u3000\u5bf9\u4e8e\u52a8\u8f84\u5c31\u51e0\u5341\u6216\u51e0\u767e\u4e2a G \u7684\u6570\u636e\uff0c\u5728\u8bfb\u53d6\u7684\u8fd9\u4e48\u5927\u6570\u636e\u7684\u65f6\u5019\uff0c\u6211\u4eec\u6709\u6ca1\u6709\u529e\u6cd5\u968f\u673a\u9009\u53d6\u4e00\u5c0f\u90e8\u5206\u6570\u636e\uff0c\u7136\u540e\u8bfb\u5165\u5185\u5b58\uff0c\u5feb\u901f\u4e86\u89e3\u6570\u636e\u548c\u5f00\u5c55 EDA ?<\/p>\n<p>\u3000\u3000\u4f7f\u7528 Pandas \u7684 skiprows \u548c \u6982\u7387\u77e5\u8bc6\uff0c\u5c31\u80fd\u505a\u5230\u3002\u89e3\u91ca\u5177\u4f53\u600e\u4e48\u505a\uff0c\u5982\u4e0b\u6240\u793a\uff0c\u8bfb\u53d6\u67d0 100 G \u5927\u5c0f\u7684 big_data.csv \u6570\u636e<\/p>\n<p>\u3000\u3000\u4f7f\u7528 skiprows \u53c2\u6570\uff0c<\/p>\n<p>\u3000\u3000 x &gt; 0 \u786e\u4fdd\u9996\u884c\u8bfb\u5165\uff0c<\/p>\n<p>\u3000\u3000 np.random.rand() &gt; 0.01 \u8868\u793a 99% \u7684\u6570\u636e\u90fd\u4f1a\u88ab\u968f\u673a\u8fc7\u6ee4\u6389<\/p>\n<p>\u3000\u3000\u8a00\u5916\u4e4b\u610f\uff0c\u53ea\u6709\u5168\u90e8\u6570\u636e 1% \u624d\u6709\u673a\u4f1a\u9009\u5165\u5185\u5b58\u4e2d\u3002<\/p>\n<p>\u3000\u3000 import pandas as pd<\/p>\n<p>\u3000\u3000 import numpy as np<\/p>\n<p>\u3000\u3000 df = pd.read_csv(&#8220;big_data.csv&#8221;,<\/p>\n<p>\u3000\u3000 skiprows =<\/p>\n<p>\u3000\u3000 lambda x: x&gt;0and np.random.rand() &gt; 0.01)<\/p>\n<p>\u3000\u3000 print(&#8220;The shape of the df is {}.<\/p>\n<p>\u3000\u3000 It has been reduced 100 times!&#8221;.format(df.shape))<\/p>\n<p>\u3000\u3000\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\uff0c\u8bfb\u53d6\u7684\u6570\u636e\u91cf\u8fc5\u901f\u7f29\u51cf\u5230\u539f\u6765\u7684 1% \uff0c\u5bf9\u4e8e\u8fc5\u901f\u5c55\u5f00\u6570\u636e\u5206\u6790\u6709\u4e00\u5b9a\u7684\u5e2e\u52a9\u3002      <\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>0<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>100G \u6570\u636e\u5982\u4f55\u5148\u968f\u673a\u8bfb\u53d6 1%&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/221095"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=221095"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/221095\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=221095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=221095"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=221095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}