我是matplotlib的新成員,我用它來顯示.csv文件的數據,代碼如下,當我的鼠標運動觸發時,xdata顯示(鏈接代碼func如下:「onMotion」)不是我想要的(從原始.csv文件中顯示正確的時間字符串爲HH:MM:SS),我想這是一個浮點數,但當我轉換到時候,它仍然不是我所期望的。我應該怎樣做才能做對?任何建議都非常感謝。matplotlib + wxpython不顯示x-ax時間字符串數據
CSV file data is below:
Time CPU MEMEMORY FLOW
21:41:45 7 2.065984885 0
21:41:49 24 2.143804486 207.1622516
21:41:53 18 2.099176758 254.0634666
21:41:57 16 2.148127797 546.959479
21:42:01 25 2.120096005 837.3973892
21:42:05 14 2.123164162 865.6367548
21:42:09 19 2.126511241 894.4122738
21:42:13 16 2.090111751 924.6048394
21:42:17 16 2.088717134 953.8266646
21:42:21 18 2.090948521 985.3669382
就像你看到的,此文件中的時間格式爲HH:MM:SS,但matplotlib它顯示爲如下圖所示。
import matplotlib.pyplot as plt
import pandas as pd
import wx
class CanvasFrame(wx.Frame):
orgData= None
def __init__(self):
self.pro = None
wx.Frame.__init__(self,None,-1, 'App Detection',size=(800,350))
self.orgData =pd.read_csv('data.csv')
self.orgData["Time"] = pd.to_datetime(self.orgData["Time"])
self.SetBackgroundColour("WHITE")
self.figure = plt.figure()
self.axes = self.figure.add_subplot(111)
self.CPU, = self.axes.plot(self.orgData["Time"], self.orgData["CPU"])
self.MEMEMORY, = self.axes.plot(self.orgData["Time"], self.orgData["MEMEMORY"], "m")
plt.xlabel("Time")
plt.ylabel("Usage(%)")
plt.title("Usage of App")
self.axes2 = self.axes.twinx()
self.FLOW, = self.axes2.plot(self.orgData["Time"], self.orgData["FLOW"], "r")
self.axes2.set_ylabel("FLOW(kb)")
self.ins = (self.CPU,)+(self.MEMEMORY,)+(self.FLOW,)
self.labs = [l.get_label() for l in self.ins]
self.axes.legend(self.ins, self.labs, loc=2)
self.canvas = FigureCanvas(self, -1, self.figure)
self.statusbar = self.CreateStatusBar()
self.mouseMoveID = self.canvas.mpl_connect('motion_notify_event',self.onMotion)
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.btnStart = wx.Button(self, -1, "Start")
self.Bind(wx.EVT_BUTTON, self.getData, self.btnStart)
self.btnGen = wx.Button(self, -1, "Gen Chart")
self.Bind(wx.EVT_BUTTON, self.genFigure, self.btnGen)
self.btnSave = wx.Button(self, -1, "Save")
self.Bind(wx.EVT_BUTTON, self.savePic, self.btnSave)
self.tip = wx.StaticText(self, -1, u"Tip: Tip string!")
self.tip.SetForegroundColour("red")
self.sizerH = wx.GridSizer(1,0)
self.sizerH.Add(self.btnStart,10, wx.ALL, 10)
self.sizerH.Add(self.btnGen,10, wx.ALL, 10)
self.sizerH.Add(self.btnSave,10, wx.ALL, 10)
self.sizer.Add(self.sizerH)
self.sizer.Add(self.tip)
self.sizer.Add(self.canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.sizer)
self.Fit()
def onMotion(self, evt):
x = evt.x
y = evt.y
inaxes = evt.inaxes
xdata = evt.xdata
ydata = evt.ydata
self.statusbar.SetStatusText("%s, %s, %s, %s, %s" % (
x, y, inaxes, xdata, ydata))
什麼是FigureCanvas()類?我試圖調試你的代碼,但它給了我錯誤,因爲'名字'FigureCanvas'沒有定義'。您可以爲圖形漫畫添加代碼嗎? –
@Amey'from matplotlib.backends.backend_wxagg將FigureCanvasWxAgg導入爲FigureCanvas'。 'createStatusbar'也丟失了。但完整的問題實際上是獨立於wx中的實現。所以人們可以忽略這一部分。 @RealLau下次詢問時,請提供[mcve]。 – ImportanceOfBeingErnest