无法对齐 x 轴 Matplotlib（家庭作业）

Question

如前所述，我有一份数据科学基础课程的家庭作业。我正在过滤出具有错误信息的塔，并按幅度和时间绘制好塔的数据。

问题在于我的图表的平均线。应该是通过我的平均分。不幸的是，我似乎无法在 X 轴上对齐。 我的输出如下所示：

我已经尝试过在堆栈溢出问题上找到的解决方案，但我能想到的最好方法是使用以下方法为整个图表画一条平均线：mplot.plot(np.unique(columnOneF),np.poly1d(np.polyfit(columnOneF,columnTwoF,1))(np.unique(columnOneF)))

import csv
import matplotlib.pyplot as mplot
import numpy as np

File = open("WhiteSwordfish_ch1.csv")
csv_file = csv.reader(File)

columnOneF = []
columnTwoF = []
columnThreeF = []
MeanAmp = []
Freq = []
TempFreq = []
last = 0

for row in csv_file:  # Loop graps all the rows out of the CSV File stores them by column in List
    if float(row[2]) == 21.312057:  # If statement check if the frequency if from the good tower if
        Freq.append(row)  # so it then grabs THE WHOLE ROW and stores in a a List

for row in Freq:  # Program loops through only the good tower's data and sorts it into
    columnOneF.append(float(row[0]))  # Seperate list by type
    columnTwoF.append(float(row[1]))
    columnThreeF.append(float(row[2]))




# Mean Line Calculation
for i in Freq:
    current = float(i[0])
    if current == last:
        TempFreq.append(float(i[1]))
    else:
        last = current
        MeanAmp.append(np.mean(TempFreq))
        # MeanAmp.insert(int(current), np.mean(TempFreq))
        TempFreq = []
print(MeanAmp)
print(columnOneF)

# Graph One (Filter Data)
# ****************************************************************************
mplot.title("Filtered Data")
mplot.xlabel("Timing")
mplot.ylabel("Amplitude")
mplot.axis([-100, 800, -1.5, 1.5])
mplot.scatter(columnOneF, columnTwoF, color="red")  # Clean Data POINTS
mplot.plot(MeanAmp, color="blue", linestyle="-")  # Line
# mplot.plot(np.unique(columnOneF),np.poly1d(np.polyfit(columnOneF,columnTwoF,1))(np.unique(columnOneF)))
mplot.show()  # Displays both graphs

Answer 1

您只将MeanAmp 传递给plot() 函数，它被解释为

plot(y) # 绘制 y 使用 x 作为索引数组 0..N-1

Source

如果您提供 x 坐标，与 scatter() 函数相同，行将对齐：

mplot.plot(columnOneF, MeanAmp, color="blue", linestyle="-")