我创建了一个简单的csv文件,其数字接近pi,我想创建并将输出存储为png。我有一个非常简单的CSV,两两包含了我想要绘制图形的数量和如何使用matplotlib将简单的csv转换为折线图?
import pandas as pd
import csv
import matplotlib.pyplot as plt
from decimal import Decimal
def create_png():
df = pd.read_csv('sticks.csv', names=["xstk", "stk"])
sumdf = df.sum(0)
num1 = sumdf['xstk']
num2 = sumdf['stk']
total = num1 + num2
aproxpi = [(2*float(total))/num1]
with open('aproxpi.csv', 'a') as pifile:
piwriter = csv.writer(pifile, delimiter= ' ')
piwriter.writerow(aproxpi)
Piplot = pd.read_csv('aproxpi.csv', names=['~Pi'])
#Piplot.groupby('~Pi')
Piplot.plot(title='The Buffon Needle Experiment')
if __name__ == "__main__":
create_png()
当我运行这段代码没有任何反应。如果我在AxesSubPlot上使用show方法,则引发异常。这如何实现?
谢谢,我试图调用show(),但没有意识到这是一种plt的方法。 –