我需要用偏移量将多个 x-y 数据堆叠在另一个之上

Question

我要我的情节如图XRD results. I am trying to write a python code, which inputs all the data from '.xy' file extension of a particular directory. I am getting two plots overlapped over each other. I want an y-offset between these plots Overlapping data.

import matplotlib.pyplot as plt 
import os

px=[]
py=[]
for h in os.listdir(r'\my directory')
    if h.endswith(".xy"):
        
        
        #print(m)
        x = []
        y = []
        f = open(h, "r")
        for i in f:
            row=i.split()
            x.append(row[0])
            y.append(row[1]) 
        
        for j in range(0, len(x)):
                x[j]=float(x[j])

        for j in range(0, len(y)):
                y[j]=float(y[j])
    
        px.append(x)
        py.append(y)
            
for i in range(len(x)):
    plt.plot(px[i],py[i])

我试图为所有 y 轴数据添加一个常数值，但它会根据偏移量改变绘图的形状。我是 python 的新手。请多多包涵。

Answer 1

很难确定，但看起来你想要这样的东西：

import matplotlib.pyplot as plt 
import os
import numpy as np

# Adjust the values in y_offsets as needed, this controls the spacing between plots
y_offsets = np.linspace(0, 25, len(os.listdir(r'\my directory')))

px=[]
py=[]
# Use zip here to make the data from each file offset by the specified amount
for h, y_off in zip(os.listdir(r'\my directory'), y_offsets):
    if h.endswith(".xy"):
        
        
        #print(m)
        x = []
        y = []
        with open(h, "r") as f: #closes the file when finished
            for i in f:
                row=i.split()
                x.append(row[0])
                y.append(row[1]) 
        
        for j in range(0, len(x)):
                x[j] = float(x[j])

        for j in range(0, len(y)):
                y[j] = float(y[j])+y_off # add y_off here, to shift all the y positions
    
        px.append(x)
        py.append(y)
            
for i in range(len(x)):
    plt.plot(px[i],py[i])

Answer 2

我看不到你的问题

import numpy as np 
import matplotlib.pyplot as plt 
 
x = np.linspace(0, 6.28, 629) 
y = np.sin(x)*np.exp(-0.8*x)                                                      

for n in range(5): 
    plt.plot(x, y+n) 
plt.yticks([]) ; plt.show()

给我

符合预期。

能否请您详细解释一下哪里出了问题，以便我们可能会帮助您？

我需要用偏移量将多个 x-y 数据堆叠在另一个之上

I need to stack the multiple x-y data one above the other with an offset

python

matplotlib

offset