python想弄个K线图，折腾了一上午没有简单的办法

  • w
    wsyx87930
    想获得特定股票特定期间（比如从2020年3月7日至今）的K线图

    之前都是登录股票软件，点K线图，右键拖选目前区间，然后放大，然后导出图片再编辑

    想把上述步骤自动化一下，没折腾成功：
    1、想绕开股票软件，否则在别人电脑上运行就太麻烦了，还要安装这个股票软件登录账号密码；
    2、财经网站上的K线图很难精确调整日期区间；
    3、获得交易数据后自己画K线图太麻烦了，没有现成的库，看了下网上现成的案例，画出来的K线图都太丑了。。
  • m
    mijuu
    百度良心echart
  • c
    cookiefj
    前排学习！ iOS 13.3 fly ~
  • w
    wsyx87930
    感谢关键词，我来学习一下
  • f
    fqxufo
    javascript 加echart一把梭好评

    https://echarts.apache.org/zh/option.html#series-candlestick
  • 花
    花菊
    mark iOS fly ~
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    opensesame
    百度图表echartHiPDA·NG
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    hjkl0001
    记号，记号 iOS fly ~
  • e
    easygooder
    必须要备份。
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    dqfish
    这个要mark
  • 天
    天地遥昭
    这个要mark一下。。。
  • 数
    数不清
    学习了
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    guangjian
    学习一下
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    zeroxia
    学js nodejs 看哪本书？
  • y
    yaohoo
    https://tushare.pro/document/2?doc_id=27
  • w
    wsyx87930
    这个能直接生成K线图吗？
    我对交易数据要求很低，深交所都能直接爬到，现在就是搞不到漂亮的图。。
  • l
    lovemu
    纷纷学习。。 iOS fly ~
  • y
    yaohoo
    回复16#wsyx87930


    https://cloud.tencent.com/developer/article/1531232
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    马背上的鱼
    马克一下 iOS fly ~
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    谁家丢的西瓜皮
    标记一下 iOS fly ~
  • s
    shehzb
    进来学习的 iOS fly ~
  • i
    ionpick
    这个是我以前写的用python画K线图的代码，供你参考，输出格式是SVG，原理就是把股票每天开盘，收盘，最高，最低这些数据转化成SVG代码就行了，很简单。SVG是一种矢量图形格式，可以在浏览器里面显示。

    1. def DrawStockCandlestickChart(self, code, halfyear, data=[]):
    2. def get_y(price):
    3. height = 156 # 180 * 0.8
    4. y = 25 + (1 - (price - price_lowest) / price_range) * height if price_range else 25

    6. return int(y)

    8. def get_vol_y(vol):
    9. height = 30
    10. # y = 168 + (1 - (vol - volume_lowest) / volume_range) * height
    11. y = 168 + (1 - vol / volume_highest if volume_highest else vol) * height

    13. return int(y)

    15. def DrawChart(g, d, i):
    16. x = int(startx + (daycount - i - 2) * ratio)
    17. up = True if d["open"] <= d["price"] else False

    19. # Draw middle line
    20. y1 = get_y(d["high"])
    21. y2 = get_y(d["low"])
    22. color = g_StockChartPriceFillColorUp if up else g_StockChartPriceColorDown
    23. outline_color = g_StockChartPriceOutlineColorUp if d["open"] <= d["price"] else g_StockChartPriceColorDown

    25. if halfyear in ["category", "halfyear"]: bias = 1
    26. else: bias = 3 if up else 2

    28. g += '<line x1="{:d}" y1="{:d}" x2="{:d}" y2="{:d}" stroke-width="1" style="stroke:{};" />\n'.format(x+bias, y1, x+bias, y2, outline_color)
    29. # g.line((x+bias, y1, x+bias, y2), fill=outline_color)

    31. # Draw volume
    32. if halfyear in ["category", "halfyear"]: stickwidth = 2
    33. else: stickwidth = 6 if up else 5

    35. y1 = get_vol_y(d["volume"])
    36. y2 = 199
    37. color = g_StockChartVolumeColorUp if d["open"] <= d["price"] else g_StockChartVolumeColorDown

    39. g += '<rect x="{:d}" y="{:d}" width="{:d}" height="{:d}" stroke-width="1" style="stroke:{}; fill:{}"/>\n'.format(x, y1, stickwidth, y2-y1, color, color)

    41. # Draw stick
    42. color = g_StockChartPriceFillColorUp if up else g_StockChartPriceColorDown
    43. y1 = get_y(d["open"])
    44. y2 = get_y(d["price"])
    45. if up: y1, y2 = y2, y1

    47. if y2 == y1:
    48. g += '<line x1="{:d}" y1="{:d}" x2="{:d}" y2="{:d}" stroke-width="1" style="stroke:{};" />\n'.format(x, y1, x+stickwidth+1, y2, outline_color)
    49. else:
    50. g += '<rect x="{:d}" y="{:d}" width="{:d}" height="{:d}" stroke-width="1" style="stroke:{}; fill:{}"/>\n'.format(x, y1, stickwidth, y2-y1, outline_color, color)

    52. return g

    54. startx = 10
    55. daycount = 0
    56. preferdays = 118 if halfyear in ["category", "halfyear"] else 53

    58. # Calculate number of days
    59. if len(data) > 1: g, d, price_lowest, price_range, volume_highest, daycount = data
    60. else:
    61. datelist = self.GetAvailableDateList(code, None, preferdays)

    63. for i in datelist:
    64. d = self.QueryStockData(code, i)
    65. if d: daycount += 1

    67. if halfyear in ["category", "halfyear"]:
    68. if daycount and daycount < 50: ratio = 473.0 / ((daycount-1) if daycount > 2 else 2)
    69. else:
    70. daycount = preferdays
    71. ratio = 4
    72. else:
    73. if daycount and daycount < 50: ratio = 473.0 / ((daycount-1) if daycount > 2 else 2)
    74. else:
    75. daycount = preferdays
    76. ratio = 9

    78. if not self.InHoliday():
    79. daycount -= 1 # Move the chart left
    80. t, _ = GetTodayDate(False)
    81. if len(data) == 1 and t in datelist: del datelist[-1]

    83. if len(data) > 1:
    84. # DrawChart(g, d, -1)
    85. g = ""
    86. return DrawChart(g, d, -1).encode()

    88. g = '\n<svg version="1.1" baseProfile="full" width="510" height="220" xmlns="http://www.w3.org/2000/svg">\n\n'

    90. # Draw Outline
    91. g += '<g style="font-family: Simsun; font-size: 12px; stroke-width: 1px; shape-rendering: crispEdges;">\n\n'

    93. g += '<rect x="{:d}" y="{:d}" width="{:d}" height="{:d}" stroke-width="1" style="stroke:{}; fill:{}"/>\n'.format(7, 20, 471, 180, g_StockChartOutlineColor, g_StockChartBackgroundColor)
    94. g += '<rect x="{:d}" y="{:d}" width="{:d}" height="{:d}" stroke-width="1" style="stroke:{}; fill:{}"/>\n'.format(8, 21, 469, 14, "#E5E5F7", "#E5E5F7")

    96. # Draw Coordinate
    97. for i in range(1, 7):
    98. y = 20 + i*26
    99. g += '<line x1="{:d}" y1="{:d}" x2="{:d}" y2="{:d}" stroke-width="1" style="stroke:{};" />\n'.format(8, y, 477, y, g_StockChartCoordinateColor)

    101. for i in range(1, 4):
    102. x = 7 + i*120
    103. g += '<line x1="{:d}" y1="{:d}" x2="{:d}" y2="{:d}" stroke-width="1" style="stroke:{};" />\n'.format(x, 21, x, 199, g_StockChartCoordinateColor)

    105. # Draw title

    107. text = "{} ({})".format(self.StockCodeToName(code), code)

    109. g += '<text x="62" y="14">{}</text>\n'.format(text)
    110. g += '<text x="234" y="14">日 线</text>\n'

    112. # Get highest, lowest
    113. price_highest = 0
    114. price_lowest = 1000
    115. volume_highest = 0
    116. volume_lowest = 100000

    118. # datelist = self.GetAvailableDateList(code, None, daycount)
    119. datelist.reverse()

    121. for i in datelist:
    122. d = self.QueryStockData(code, i)
    123. if not d or (price_highest and d["low"] / price_highest > 1.15): continue

    125. volume = d["volume"]
    126. if price_highest < d["high"]: price_highest = d["high"]
    127. if price_lowest > d["low"]: price_lowest = d["low"]
    128. if volume_highest < volume: volume_highest = volume
    129. if volume_lowest > volume: volume_lowest = volume

    131. price_range = price_highest - price_lowest
    132. volume_range = volume_highest - volume_lowest

    134. # Draw Price

    136. for i in range(7):
    137. x = 483
    138. y = 13 + i*26
    139. priceformat = "{:.1f}" if price_lowest + price_range > 10 else "{:.2f}"
    140. price = priceformat.format(price_lowest + price_range * (6-i) / 6)
    141. g += '<text x="{:d}" y="{:d}">{}</text>\n'.format(x, y+11, price)

    143. # Draw Date
    144. idate, _ = GetTodayDate(True)
    145. x = 474

    147. for i in range(3):
    148. idate = self.GetDateDelta(-daycount // 4, idate)
    149. text = idate[-5:]
    150. x -= 120
    151. y = 213
    152. g += '<text x="{:d}" y="{:d}">{}</text>\n'.format(x, y, text)

    154. # Draw chart
    155. count = -1

    157. for i in datelist:
    158. d = self.QueryStockData(code, i)
    159. if d or i not in self.StockHoliday: count += 1
    160. if not d: continue
    161. g = DrawChart(g, d, count)
    162. if count > daycount-3: break

    164. g += '</g>\n'
    165. g += '\n</svg>\n\n'
    166. content = g.encode()

    168. return content
    复制代码
  • 之
    之一线
    mark。mark
  • c
    cookite_li
    学习。
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    zsdicky
    学习一下
  • k
    kww9812
    bokeh也可以
    plt也可以
    聚宽上看看一堆堆