Question

在我的程序中，我在轴上生成了一个烛台，在axix2中生成了一个数据图。对于烛台图，我创建了一个名为data的变量。它是python字典类型变量。我已分配日期。'date'的地方：['2018/10/30'，'2018/11/03'，'2018/11/04'，'2018/11/05'，'2018/11 / 07'，'2018/11/10'，'2018/11/11']。 其他键是“打开”，“高”，“低”，“关闭”和“音量”
此处的日期为'2018/10/30'和'2018/11/03'有日期间隔。
这里的日期'2018/11/07'和'2018/11/10'还有一个日期。
所以当我生成烛台图时，缺少日期空间被占用了。我该如何删除这个缺少的日期空间。我的程序：

import sys
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from PyQt5.QtWidgets import QMainWindow,QVBoxLayout
from PyQt5.QtWidgets import QApplication
from PyQt5 import QtCore, QtGui, QtWidgets
import datetime
from matplotlib.dates import num2date, date2num
from mpl_finance import candlestick_ochl as candlestick
import numpy as np
import matplotlib.ticker as ticker
class MainWindow_code_serarch(object):

    def setup_code_serarch(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(870, 680)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.verticalLayoutWidget1 = QtWidgets.QWidget(self.centralwidget)
        self.verticalLayoutWidget1.setGeometry(QtCore.QRect(17, 30, 341, 153))
        self.verticalLayoutWidget1.setObjectName("verticalLayoutWidget")
        self.verticalLayout1 = QtWidgets.QVBoxLayout(self.verticalLayoutWidget1)
        self.verticalLayout1.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout1.setObjectName("verticalLayout1")

        self.verticalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
        self.verticalLayoutWidget.setGeometry(QtCore.QRect(17, 150, 741, 553))
        self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.figure = Figure(figsize=None, dpi=80, facecolor='k')
        self.canvas = FigureCanvas(self.figure)
        # self.navigation_toolbar = MyToolbar(self.canvas, self)
        # self.navigation_toolbar.coordinates = False

        self.verticalLayout.addWidget(self.canvas)
        # self.verticalLayout1.addWidget(self.navigation_toolbar)
        axes, axes2 = self.figure.subplots(nrows=2, sharex=True)


        data={
        'date' : ['2018/10/30', '2018/11/03', '2018/11/04', '2018/11/05', '2018/11/07', '2018/11/10', '2018/11/11'],
        'open': [8824, 8726.31, 8642.14, 8531.51, 8630.25, 8602.50, 8640.22],
        'high':[8858, 8748.60, 8551.36, 8653.16, 8476.69, 8630, 8570.56],
        'low' :[8688, 8743.67, 8550.76, 8449.50, 8631.83, 8602.18, 8743.22],
        'close':[8820, 8747.17, 8550.52, 8553., 8517.10, 8628.78, 8588.52],
        'volume': [17759.56, 120000.17, 18739.52, 38599.50, 16517.10, 17723.78, 15588.52]
        }

        x = date2num([datetime.datetime.strptime(d, '%Y/%m/%d').date() for d in data['date']])
        candle_trace = zip(x, data['open'], data['high'], data['low'], data['close'], data['volume'])
        candlestick(axes, candle_trace, width=.75, colorup='w', colordown='r');

        axes2.plot(x,[1, 2, 3, 4,7,8,9])

        axes.set_position([0.02, 0.37, 0.88, 0.6])
        axes2.set_position([0.02, 0.15, 0.88, 0.22])
        axes.tick_params(axis='both', color='#ffffff', labelcolor='#ffffff')
        axes.yaxis.tick_right()
        axes2.tick_params(axis='both', color='#ffffff', labelcolor='#ffffff')
        axes2.grid(color='lightgray', linewidth=.5, linestyle=':')
        axes.grid(color='lightgray', linewidth=.5, linestyle=':')
        axes2.yaxis.tick_right()
        axes.autoscale_view()
        axes2.autoscale_view()
        axes2.xaxis_date()
        axes.xaxis_date()

        axes.margins(0, .5)
        axes2.margins(0, .5)
        axes.set_facecolor('#041105')
        axes2.set_facecolor('#041105')
        # axes.xaxis.set_major_formatter(ticker.FuncFormatter(format_date))
        # axes2.xaxis.set_major_formatter(ticker.FuncFormatter(format_date))
        #self.multi = FigureCursor(self.figure, horizOn=True, vertOn=True, color='r', lw=1)
        self.canvas.draw()

        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 246, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        # self.pushButton.clicked.connect(self.graphShowCode)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        # self.pushButton.setText(_translate("MainWindow", "OK"))

    # def format_date(x, pos=None):
    #         thisind = np.clip(int(x + 0.5), 0, N - 1)
    #         return r.date[thisind].strftime('%Y-%m-%d')


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = MainWindow_code_serarch()
    ui.setup_code_serarch(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

输出：

Answer 1

我解决了“从图表matplotlib中删除缺少的日期空间和xtricklabel”这样，在我的数据数组中，我用从0开始的整数替换了日期。我还为xtricklabel设置了时间。

我的解决方案代码：

import sys
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
import matplotlib.pyplot as plt
from matplotlib.figure import Figure
from PyQt5.QtWidgets import QMainWindow,QVBoxLayout
from PyQt5.QtWidgets import QApplication
from PyQt5 import QtCore, QtGui, QtWidgets
import datetime
from matplotlib.dates import num2date, date2num
from mpl_finance import candlestick_ochl as candlestick
import numpy as np
import matplotlib.ticker as ticker
import matplotlib.dates as mdates
import pylab as pl
class MainWindow_code_serarch(object):

    def setup_code_serarch(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(870, 680)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.verticalLayoutWidget1 = QtWidgets.QWidget(self.centralwidget)
        self.verticalLayoutWidget1.setGeometry(QtCore.QRect(17, 30, 341, 153))
        self.verticalLayoutWidget1.setObjectName("verticalLayoutWidget")
        self.verticalLayout1 = QtWidgets.QVBoxLayout(self.verticalLayoutWidget1)
        self.verticalLayout1.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout1.setObjectName("verticalLayout1")

        self.verticalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
        self.verticalLayoutWidget.setGeometry(QtCore.QRect(17, 150, 741, 553))
        self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.figure = Figure(figsize=None, dpi=80, facecolor='k')
        self.canvas = FigureCanvas(self.figure)
        # self.navigation_toolbar = MyToolbar(self.canvas, self)
        # self.navigation_toolbar.coordinates = False

        self.verticalLayout.addWidget(self.canvas)
        # self.verticalLayout1.addWidget(self.navigation_toolbar)
        axes,axes2 = self.figure.subplots(nrows=2, sharex=True)


        data={
        'date' : ['2018/10/30', '2018/11/03', '2018/11/04', '2018/11/05', '2018/11/07', '2018/11/10', '2018/11/11'],
        'open': [8824, 8726.31, 8642.14, 8531.51, 8630.25, 8602.50, 8640.22],
        'high':[8858, 8748.60, 8551.36, 8653.16, 8476.69, 8630, 8570.56],
        'low' :[8688, 8743.67, 8550.76, 8449.50, 8631.83, 8602.18, 8743.22],
        'close':[8820, 8747.17, 8550.52, 8553., 8517.10, 8628.78, 8588.52],
        'volume': [17759.56, 120000.17, 18739.52, 38599.50, 16517.10, 17723.78, 15588.52]
        }
        # result = [( d['low'],d['close'],d['volume']) for d in data]
        # print(result)
        x = date2num([datetime.datetime.strptime(d, '%Y/%m/%d').date() for d in data['date']])
        t= np.arange(len(data['date']))

        candle_trace = zip(t, data['open'], data['high'], data['low'], data['close'], data['volume'])
        # print(list(candle_trace))
        candlestick(axes, candle_trace, width=.75, colorup='g', colordown='r');

        axes2.plot(t,[1, 2, 3, 4,7,8,9])

        axes.set_position([0.02, 0.37, 0.88, 0.6])
        axes2.set_position([0.02, 0.15, 0.88, 0.22])
        axes.tick_params(axis='both', color='#ffffff', labelcolor='#ffffff')
        axes.yaxis.tick_right()
        axes2.tick_params(axis='both', color='#ffffff', labelcolor='#ffffff')
        axes2.grid(color='lightgray', linewidth=.5, linestyle=':')
        axes.grid(color='lightgray', linewidth=.5, linestyle=':')
        axes2.yaxis.tick_right()
        axes.autoscale_view()
        axes2.autoscale_view()
        # axes2.xaxis_date()
        # axes.xaxis_date()

        # axes.margins(0, .5)
        # axes2.margins(0, .5)
        axes.set_facecolor('#041105')
        axes2.set_facecolor('#041105')

        #self.multi = FigureCursor(self.figure, horizOn=True, vertOn=True, color='r', lw=1)
        # N = len(dates)

        axes.set_xticks(range(0, len((x)), 1))
        # axes.set_xticklabels([mdates.num2date(d).strftime('%b-%d') for d in x])
        axes.set_xticklabels([mdates.num2date(d).strftime('%Y-%m-%d') for d in x])
        axes2.set_xticklabels([mdates.num2date(d).strftime('%Y-%m-%d') for d in x])

        self.canvas.draw()

        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 246, 21))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        # self.pushButton.clicked.connect(self.graphShowCode)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        # self.pushButton.setText(_translate("MainWindow", "OK"))




if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = MainWindow_code_serarch()
    ui.setup_code_serarch(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

输出为：

从图表matplotlib烛台中删除缺少的日期空间和技巧标签

1 个答案: