{"id":207389,"date":"2025-07-08T08:21:30","date_gmt":"2025-07-08T00:21:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207389\/"},"modified":"2025-07-08T08:21:30","modified_gmt":"2025-07-08T00:21:30","slug":"%e5%a6%82%e4%bd%95%e4%b8%ba%e6%88%91%e7%9a%84%e6%95%b0%e6%8d%ae%e8%8e%b7%e5%8f%96%e8%bf%99%e4%b8%aa%e7%89%b9%e5%ae%9a%e7%9a%84%e5%bd%a2%e7%8a%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207389\/","title":{"rendered":"\u5982\u4f55\u4e3a\u6211\u7684\u6570\u636e\u83b7\u53d6\u8fd9\u4e2a\u7279\u5b9a\u7684\u5f62\u72b6"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u4e3a\u6211\u7684\u6570\u636e\u83b7\u53d6\u8fd9\u4e2a\u7279\u5b9a\u7684\u5f62\u72b6<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 09:33:41<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60Golang<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587\u300a\u5982\u4f55\u4e3a\u6211\u7684\u6570\u636e\u83b7\u53d6\u8fd9\u4e2a\u7279\u5b9a\u7684\u5f62\u72b6\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0Golang<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u5728 go \u4e2d\uff0c\u6211\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570 bars, err := custplotter.newcandlesticks(data)<\/code> \u4ece\u8fd9\u91cc\uff1a https:\/\/github.com\/pplcc\/plotext\/tree\/master\/custplotter<\/p>\n

\u5b83\u671f\u5f85\u6570\u636e\u7684\u5f62\u72b6\uff1a<\/p>\n

[{2 16435 16458 16435 16446 1} {3 16446 16458 16435.04 16455 1} .....]<\/code><\/p>\n

\u4f46\u662f\u6211\u4e0b\u9762\u7684\u4ee3\u7801\u6b63\u5728\u4ee5\u8fd9\u79cd\u5f62\u72b6\u521b\u5efa\u6211\u7684\u6570\u636e\uff1a<\/p>\n

[[2 16435 16458 16435 16446 1] [3 16446 16458 16435.04 16455 1] .....]<\/code><\/p>\n

\u8fd9\u7ed9\u4e86\u6211\u8fd9\u4e2a\u9519\u8bef\u6d88\u606f\uff1a \u65e0\u6cd5\u5728 custplotter.newcandlesticks<\/code> \u7684\u53c2\u6570\u4e2d\u4f7f\u7528\u6570\u636e (type [ ][ ]string<\/code>) \u4f5c\u4e3a custplotter.tohlcver<\/code> \u7c7b\u578b\uff1a<\/p>\n

[ ][ ]\u5b57\u7b26\u4e32\u672a\u5b9e\u73b0 custplotter.tohlcver\uff08\u7f3a\u5c11 len \u65b9\u6cd5\uff09<\/code><\/p>\n

\u6211\u8ba4\u4e3a\u95ee\u9898\u5728\u4e8e\u6570\u636e\u5f62\u72b6\u3002\u5982\u4f55\u66f4\u6539\u4ee3\u7801\u4ee5\u521b\u5efa\u6240\u9700\u7684\u6570\u636e\u5f62\u72b6\uff08\u4f7f\u7528 { } \u800c\u4e0d\u662f [ ]\uff09\uff1f<\/p>\n

\/\/read excel file******************************************\n    xlsx, err := excelize.OpenFile(\"\/media\/Snaps\/test snaps.xlsm\")\n    if err != nil {\n        fmt.Println(err)\n        return\n    }\n\n    \/\/read all rows into df\n    df := xlsx.GetRows(\"ticker_2\")\n\n    \/\/get only TOHLCV columns and 60 rows\n    df3 := make([][]string, 60) \/\/ create slice for 60 rows\n    idx := 0\n    for _, row := range df[1:61] { \/\/ read 60 rows\n        df3row := make([]string, 6) \/\/ create slice for 6 columns\n        copy(df3row, row[28:34]) \/\/ copy desired columns to new row slice\n        df3[idx] = df3row\n        idx++\n    }<\/pre>\n
\u6211\u5728 go \u6587\u732e\u4e2d\u627e\u5230\u7684\u6240\u6709\u5207\u7247\u793a\u4f8b\u4ec5\u4f7f\u7528 [ [ ], [ ] ]<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u6839\u636e <\/p>\n
\u770b\u6765\u60a8\u9700\u8981\u7684\u662f custplotter.tohlcvs<\/code> \u5b83\u53ea\u662f float64 \u7ed3\u6784\u7684\u4e00\u90e8\u5206\u3002<\/p>\n
\uff1a<\/p>\n
type tohlcver interface {\n    \/\/ len returns the number of time, open, high, low, close, volume tuples.\n    len() int\n\n    \/\/ tohlcv returns an time, open, high, low, close, volume tuple.\n    tohlcv(int) (float64, float64, float64, float64, float64, float64)\n}\n\n\/\/ tohlcvs implements the tohlcver interface using a slice.\ntype tohlcvs []struct{ t, o, h, l, c, v float64 }<\/pre>\n
\u6240\u4ee5\u57fa\u672c\u4e0a\u4f60\u7684\u89e3\u51b3\u65b9\u6848\u53ef\u80fd\u7c7b\u4f3c\u4e8e\uff1a<\/p>\n
df3 := make(tohlcvs, 60) \/\/ create slice for 60 rows\nidx := 0\nfor _, row := range df[1:61] { \/\/ read 60 rows\n    df3[idx].t, err = strconv.parsefloat(row[28], 64)\n    df3[idx].o, err = strconv.parsefloat(row[29], 64)\n    df3[idx].h, err = strconv.parsefloat(row[30], 64)\n    df3[idx].l, err = strconv.parsefloat(row[31], 64)\n    df3[idx].c, err = strconv.parsefloat(row[32], 64)\n    df3[idx].v, err = strconv.parsefloat(row[33], 64)\n    idx++\n}<\/pre>\n
\u6216\u8005\u60a8\u4e5f\u53ef\u4ee5\u5b9e\u73b0 tohlcver<\/code> \u63a5\u53e3:)<\/p>\n
type SlicesOfTOHLCV [][6]float64\n\nfunc (s SlicesOfTOHLCV) Len() int {\n    return len(s)\n}\n\nfunc (s SlicesOfTOHLCV) TOHLCV(i int) (float64, float64, float64, float64, float64) {\n    return s[i][0], s[i][1], s[i][2], s[i][3], s[i][4], s[i][5]\n}\n\nmySlice := make(SlicesOfTOHLCV, 60)\ni := 0\nfor _, row := range df[1:61] {\n    mySlice[i] = [6]float64{}\n    for j := 0; j < 6; j ++ {\n        mySlice[i][j], err = strconv.ParseFloat(row[28+j], 64)\n        if err != nil {\n            panic(err)\n        }\n    }\n    i ++\n}<\/pre>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u5982\u4f55\u4e3a\u6211\u7684\u6570\u636e\u83b7\u53d6\u8fd9\u4e2a\u7279\u5b9a\u7684\u5f62\u72b6\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207389","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207389","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207389"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207389\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207389"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207389"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}