试图找出Python中允许用户输入句子的最佳方式，然后除了计算元音数量之外，还计算该句子中的字符数量。我希望输出返回字符总数，加上 A 总数、O 总数、U 总数等。这是我到目前为止的代码：
# prompt for input
sentence = input('Enter a sentence: ')
# count of the number of a/A occurrences in the sentence
a_count = 0
# count of the number of e/E occurrences in the sentence
e_count = 0
# count of the number of i/I occurrences in the sentence
i_count = 0
# count of the number of o/O occurrences in the sentence
o_count = 0
# count of the number of u/U occurrences in …我试图计算变量(在这种情况下是国家)在任何给定年份出现的频率.例如:
name <- c('AJ Griffin','Steve Bacon','Kevin Potatoe','Jose Hernandez','Kent Brockman',
'Sal Fasno','Kirk Kelly','Wes United','Livan Domingo','Mike Fast')
country <- c('USA', 'USA', 'Canada', 'Dominican Republic', 'Panama', 'Dominican Republic', 'Canada', 'USA', 'Dominican Republic', 'Mexico')
year <- c('2016', '2016', '2016', '2016', '2016', '2015', '2015', '2015', '2015', '2015')
country_analysis <-data.frame(name, country, year)
当我使用下面的代码时,我得到整个数据集的国家比例,但我想进一步削减到特定年份.
P <- country_analysis %>%
group_by(country) %>%
summarise(n=n())%>%
mutate(freq = round(n / sum(n), 1))
理想情况下,最终结果将包含国家,年份,频率列(即2016年,美国,0.4).任何输入将不胜感激.