Python Matplotlib繪製氣溫圖表

右介發表於2018-04-10
Python

程式碼中資料從 www.wunderground.com/history/ 下載

#coding=utf-8
import csv
from datetime import datetime

from matplotlib import pyplot as plt

# 從檔案中獲取日期和最高氣溫
filename = 'sitka_weather_2014.csv'
with open(filename) as f:
    reader = csv.reader(f)
    header_row = next(reader)

    # 列印檔案頭及其位置
    # print header_row
    # for index, column_header in enumerate(header_row):
    #     print index,  column_header
    
    dates, highs, lows = [], [], []
    for row in reader:
        current_date = datetime.strptime(row[0], "%Y-%m-%d")
        dates.append(current_date)

        high = int(row[1])
        highs.append(high)

        low = int(row[3])
        lows.append(low)

# 根據資料繪製圖形
fig = plt.figure(dpi=96, figsize=(10, 6))
plt.plot(dates, highs, c='red', alpha=0.5)
plt.plot(dates, lows, c='blue', alpha=0.5)
plt.fill_between(dates, highs, lows, facecolor='blue', alpha=0.1)
# 設定圖形的格式
plt.title("Daily high and low temperatures - 2014", fontsize=24)
plt.xlabel('', fontsize=16)
fig.autofmt_xdate()
plt.ylabel("Temerature (F)", fontsize=16)
plt.tick_params(axis='both', which='major', labelsize=16)

plt.show()

 

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