scss 体验AI代码助手 代码解读复制代码importthreading defprint_numbers():foriinrange(1,6):print(f"Number {i}")defprint_letters():forletterin'abcde':print(f"Letter {letter}")# 创建两个线程 t1=threading.Thread(target=print_numbers)t2=threading.Thread(target=print_letters)# 启动线程 t1.start(...
In [60]: dates = pd.date_range('1/1/2000', periods=100, freq='W-WED') In [61]: long_df = pd.DataFrame(np.random.randn(100, 4), ...: index=dates, ...: columns=['Colorado', 'Texas', ...: 'New York', 'Ohio']) In [62]: long_df.loc['5-2001'] Out[62]: Colorad...
我们还可以使用parse_dates参数在任何文件加载时直接声明日期列。 df = pd.read_csv("dataset.txt", parse_dates=["date"]) df.info() """ <class 'pandas.core.frame.DataFrame'> RangeIndex: 204 entries, 0 to 203 Data columns (total 2 columns): # Column Non-Null Count Dtype --- --- --...
列表解析式 l1 = [i * 2 for i in range(10)] print(l1) 1. 2. [0, 2, 4, 6, 8, 10, 12, 14, 16, 18] 1. 筛选条件 l1 = [i * 2 for i in range(10) if i*2 > 10] print(l1) 1. 2. [12, 14, 16, 18] 1. 嵌套循环 l1 = ['A', 'B', 'C'] l2 = ['1', ...
#Using scipy:Subtract the line of best fitfrom scipy import signal #处理信号df = pd.read_csv('https://raw.githubusercontent.com/selva86/datasets/master/a10.csv', parse_dates=['date'])detrended = signal.detrend(df.value.values) #用于去趋势化(detrend)#df.value 返回的是一个 pandas Series...
}', rep)programing = [eval(k[0]) for k in data] # 编程语言dates = [i[1] for i in data]# 正则表达式处理 提取出想要的数据for x in range(len(dates)): name = programing[x] datas = re.findall(r'\[Date.UTC(.*?)\]', dates[x], re.DOTALL) for m in datas: date1 = re....
文本中的代码词、数据库表名、文件夹名、文件名、文件扩展名、路径名、虚拟 URL、用户输入和 Twitter 用户名显示如下:“我们可以通过调用get_data()函数来收集所需的信息。” 代码块设置如下: defhello_world():print(“Hello World!”) hello_world() ...
year= 2021month= 5monthcal=c.monthdatescalendar(year, month)try: third_friday= [dayforweekinmonthcalfordayinweekifday.weekday()== calendar.FRIDAYandday.month == month][2]print(third_friday)exceptIndexError:print('No date found')
defget_all_dates_of_week(date):start_of_week=get_start_of_week(date)end_of_week=get_end_of_week(date)all_dates_of_week=[start_of_week+datetime.timedelta(days=x)forxinrange(7)]returnall_dates_of_week 1. 2. 3. 4. 5. 代码解释:使用列表推导式生成包含本周所有日期的列表。
monthcal = c.monthdatescalendar(datetime.today().year, datetime.today().month) try: tues = [day for week in monthcal for day in week if day.weekday() == calendar.TUESDAY and day.month == datetime.today().month][0] print(tues) ...