{"id":3581,"date":"2026-03-11T08:54:32","date_gmt":"2026-03-11T00:54:32","guid":{"rendered":"http:\/\/xuebuwan.com\/wp\/archives\/3581"},"modified":"2026-03-23T17:22:38","modified_gmt":"2026-03-23T09:22:38","slug":"pandas%e5%85%a5%e9%97%a8%ef%bc%9a%e5%a4%84%e7%90%86%e6%95%b0%e6%8d%ae%e7%9a%84%e7%a5%9e%e5%99%a8","status":"publish","type":"post","link":"http:\/\/xuebuwan.com\/wp\/?p=3581","title":{"rendered":"Pandas\u5165\u95e8\uff1a\u5904\u7406\u6570\u636e\u7684\u795e\u5668"},"content":{"rendered":"

\ud83d\udcca Pandas \u662f\u4ec0\u4e48\uff1f<\/h2>\n

Pandas<\/strong>\u662fPython\u91cc\u6700\u5e38\u7528\u7684\u6570\u636e\u5904\u7406\u5e93\uff0c\u4e13\u95e8\u7528\u6765\u5904\u7406\u8868\u683c\u6570\u636e\u3002<\/p>\n

\u5c31\u50cf Excel \u4f46\u66f4\u5f3a\u5927\uff0c\u53ef\u4ee5\u7528\u4ee3\u7801\u64cd\u4f5c\uff01<\/p>\n

\ud83d\udc68\u200d\ud83d\udcbb \u5b89\u88c5<\/h2>\n
pip install pandas<\/code><\/pre>\n
\ud83d\udce6 \u521b\u5efa\u8868\u683c\uff08DataFrame\uff09<\/h2>\n
import pandas as pd\n\n# \u76f4\u63a5\u521b\u5efa\ndf = pd.DataFrame({\n    "\u80a1\u7968": ["\u8305\u53f0", "\u4e94\u7cae\u6db2", "\u6d77\u87ba\u6c34\u6ce5"],\n    "\u4ee3\u7801": ["600519", "000858", "600585"],\n    "\u4ef7\u683c": [1800, 200, 30],\n    "\u6da8\u8dcc\u5e45": [1.5, -0.8, 2.1]\n})\n\nprint(df)<\/code><\/pre>\n
\u7ed3\u679c\uff1a<\/p>\n
     \u80a1\u7968      \u4ee3\u7801    \u4ef7\u683c  \u6da8\u8dcc\u5e45\n0   \u8305\u53f0  600519   1800    1.5\n1  \u4e94\u7cae\u6db2  000858    200   -0.8\n2  \u6d77\u87ba\u6c34\u6ce5  600585     30    2.1<\/pre>\n
\ud83d\udd0d \u67e5\u770b\u6570\u636e<\/h2>\n
print(df.head())      # \u524d\u51e0\u884c\nprint(df.tail())       # \u540e\u51e0\u884c\nprint(df.shape)        # \u884c\u6570\u5217\u6570 (3, 4)\nprint(df.columns)       # \u5217\u540d\nprint(df.info())       # \u4fe1\u606f<\/code><\/pre>\n
\ud83d\udcca \u9009\u62e9\u5217<\/h2>\n
print(df["\u80a1\u7968"])           # \u5355\u5217\nprint(df[["\u80a1\u7968", "\u4ef7\u683c"]])  # \u591a\u5217<\/code><\/pre>\n
\ud83d\udd0e \u7b5b\u9009\u884c<\/h2>\n
# \u4ef7\u683c\u4e0a\u6da8\u7684\nprint(df[df["\u6da8\u8dcc\u5e45"] > 0])\n\n# \u4ef7\u683c\u5927\u4e8e100\u7684\nprint(df[df["\u4ef7\u683c"] > 100])<\/code><\/pre>\n
\u2795 \u6dfb\u52a0\u65b0\u5217<\/h2>\n
# \u8ba1\u7b97\u5e02\u503c\uff08\u7b80\u5355\u793a\u4f8b\uff09\ndf["\u5e02\u503c"] = df["\u4ef7\u683c"] * 1000000\nprint(df)<\/code><\/pre>\n
\ud83d\udcc8 \u7edf\u8ba1\u8ba1\u7b97<\/h2>\n
print(df["\u4ef7\u683c"].mean())   # \u5e73\u5747\u503c\nprint(df["\u4ef7\u683c"].max())    # \u6700\u5927\u503c\nprint(df["\u4ef7\u683c"].min())    # \u6700\u5c0f\u503c\nprint(df["\u6da8\u8dcc\u5e45"].sum())  # \u603b\u548c<\/code><\/pre>\n
\ud83d\udca1 \u91cf\u5316\u5b9e\u6218\uff1a\u5904\u7406\u80a1\u7968\u6570\u636e<\/h2>\n
import akshare as ak\n\n# \u83b7\u53d6\u6570\u636e\ndf = ak.stock_zh_a_hist(symbol="600519")\nprint(df.columns)\n\n# \u9009\u62e9\u9700\u8981\u7684\u5217\ndf = df[["\u65e5\u671f", "\u5f00\u76d8", "\u6536\u76d8", "\u6700\u9ad8", "\u6700\u4f4e", "\u6210\u4ea4\u91cf"]]\n\n# \u7b5b\u9009\u65e5\u671f\ndf = df[df["\u65e5\u671f"] >= "2024-01-01"]\n\n# \u8ba1\u7b97\u6536\u76ca\u7387\ndf["\u6536\u76ca\u7387"] = (df["\u6536\u76d8"] - df["\u6536\u76d8"].shift(1)) \/ df["\u6536\u76d8"].shift(1) * 100\n\nprint(df.head())<\/code><\/pre>\n
\ud83d\udcda \u4e0b\u4e00\u8bfe<\/h2>\n
\u5b66\u4f1a\u4e86Pandas\u57fa\u7840\uff0c\u6211\u4eec\u6765\u5b66\u6570\u636e\u7b5b\u9009\u4e0e\u8fc7\u6ee4<\/strong>\uff01<\/p>","protected":false},"excerpt":{"rendered":"
\ud83d\udcca Pandas \u662f\u4ec0\u4e48\uff1f Pandas\u662fPython\u91cc\u6700\u5e38\u7528\u7684\u6570\u636e\u5904\u7406\u5e93\uff0c\u4e13\u95e8\u7528\u6765\u5904\u7406\u8868\u683c\u6570\u636e\u3002 \u5c31\u50cf Ex … \u9605\u8bfb\u66f4\u591a<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-3581","post","type-post","status-publish","format-standard","hentry","category-python-quant"],"_links":{"self":[{"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3581"}],"version-history":[{"count":1,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3581\/revisions"}],"predecessor-version":[{"id":3603,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/3581\/revisions\/3603"}],"wp:attachment":[{"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3581"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xuebuwan.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}