split_number = number_str.split('.'): Splits the number on the decimal point to get the integer and fractional parts. integer_part = split_number[0]: Stores the integer part of the number. fractional_part = split_number[1]: Stores the fractional part of the number. decimal_places = ...
在这个示例中,3.6被四舍五入为4,而3.3则被四舍五入为3。 4.2 指定小数位数 (Specifying the Number ofdecimalPlaces) print(round(3.14159, 2)) # 输出: 3.14print(round(2.71828, 3)) # 输出: 2.718 在这里,我们可以看到round函数是如何根据指定的小数位数来进行四舍五入的,xxt-aidol.cn,。 4.3 负数的...
DataFrame.round([decimals]) #Round a DataFrame to a variable number of decimal places. DataFrame.sem([axis, skipna, level, ddof]) #返回无偏标准误 DataFrame.skew([axis, skipna, level, …]) #返回无偏偏度 DataFrame.sum([axis, skipna, level, …]) #求和 DataFrame.std([axis, skipna, le...
>>>getcontext().prec=6 >>>Decimal('3.0') Decimal('3.0') >>>Decimal('3.1415926535') Decimal('3.1415926535') >>>Decimal('3.1415926535')+Decimal('2.7182818285') Decimal('5.85987') >>>getcontext().rounding=ROUND_UP >>>Decimal('3.1415926535')+Decimal('2.7182818285') Decimal('5.85988') 如果...
double_precision : int, default 10 The number of decimal places to use when encoding floating point values. force_ascii : bool, default True Force encoded string to be ASCII. date_unit : str, default 'ms' (milliseconds) The time unit to encode to, governs timestamp and ISO8601 precisi...
Round a DataFrame to a variable number of decimal places. DataFrame.sem([axis, skipna, level, ddof, …]) 返回无偏标准误 DataFrame.skew([axis, skipna, level, …]) 返回无偏偏度 DataFrame.sum([axis, skipna, level, …]) 求和 DataFrame.std([axis, skipna, level, ddof, …]) ...
Decimal 数字的表示是完全精确的。 相比之下,1.1 和2.2 这样的数字在二进制浮点中没有精确的表示。 最终用户通常不希望 1.1 + 2.2 如二进制浮点数表示那样被显示为 3.3000000000000003。精确性延续到算术中。 在十进制浮点数中,0.1 + 0.1 + 0.1 - 0.3 恰好等于零。 在二进制浮点数中,结果为 5.5511151231257827e...
{:.3f}'.tvalues_format: strThe number of decimal places for t-values, e.g., '{:.2f}'.'''# Create a DataFramerows=sum([[var,f'{var}_t']forvarin['const']+reg_order],[])ifreg_namesisNone:reg_names=[f'({i+1})'foriinrange(len(reg_lst))]show=pd.DataFrame(index=rows,...
DataFrame.round([decimals])Round a DataFrame to a variable number of decimal places. DataFrame.sem([axis, skipna, level, ddof, …])返回无偏标准误 DataFrame.skew([axis, skipna, level, …])返回无偏偏度 DataFrame.sum([axis, skipna, level, …])求和 ...
deci is the number of decimal places in the provided decimal object Records can be an iterable over the records (sequences of field values)."""#header infover = 3now=datetime.datetime.now() yr, mon, day= now.year - 1900, now.month, now.day ...