r - 按年份低于阈值的值的百分比-6ren

r - 按年份低于阈值的值的百分比

转载作者：行者123 更新时间：2023-12-04 11:06:51

可能很容易但很难获得。

如何按年份获取以下数据中低于 112 的值的百分比？输出是 2 个值，一个代表一年。

这是我试图推导出百分比的代码，但它为每一行生成一个值，而不是对一年中的所有日期进行汇总:

library(dplyr)

dat= a %>% 
        filter(value < 112) %>%
        group_by(year) %>%
        mutate(per=paste0(round(100*value/value,2),'%'))


a= structure(list(value = c(196, 186, 188, 186, 188, 191, 229, 277, 
    274, 258, 242, 261, 248, 226, 208, 196, 200, 255, 617, 515, 411, 
    328, 280, 267, 261, 251, 245, 236, 228, 220, 242, 345, 462, 515, 
    532, 549, 428, 348, 314, 300, 300, 320, 320, 303, 371, 566, 648, 
    609, 583, 555, 530, 476, 436, 402, 462, 589, 790, 736, 629, 623, 
    745, 1040, 1450, 1460, 1280, 1050, 878, 725, 648, 711, 779, 691, 
    623, 569, 487, 439, 445, 476, 535, 663, 711, 677, 629, 912, 1170, 
    994, 838, 810, 844, 790, 711, 629, 623, 564, 541, 555, 575, 697, 
    671, 756, 1030, 971, 799, 731, 697, 648, 617, 549, 513, 476, 
    433, 481, 784, 1320, 1150, 932, 736, 682, 657, 691, 617, 564, 
    535, 501, 515, 530, 481, 476, 530, 456, 391, 348, 334, 303, 297, 
    289, 286, 283, 289, 283, 279, 273, 267, 254, 245, 238, 238, 238, 
    232, 230, 230, 227, 227, 227, 227, 227, 227, 227, 220, 215, 210, 
    205, 205, 205, 205, 205, 200, 196, 191, 186, 181, 177, 172, 164, 
    160, 156, 156, 156, 154, 152, 152, 148, 144, 138, 133, 125, 114, 
    114, 111, 99.6999969482422, 89.5, 89.5, 88.5999984741211, 88.5999984741211, 
    56.5999984741211, 56.5999984741211, 56.5999984741211, 56.5999984741211, 
    56.5999984741211, 56.5999984741211, 56.5999984741211, 56.5999984741211, 
    56.5999984741211, 56.5999984741211, 56.5999984741211, 56.5999984741211, 
    56.5999984741211, 56.5999984741211, 56.5999984741211, 56.5999984741211, 
    56.5999984741211, 56.5999984741211, 56.5999984741211, 56.5999984741211, 
    48.7000007629395, 48.7000007629395, 48.7000007629395, 48.7000007629395, 
    48.7000007629395, 48.7000007629395, 48.7000007629395, 48.7000007629395, 
    48.7000007629395, 48.4000015258789, 48.0999984741211, 48.0999984741211, 
    48.0999984741211, 47, 47, 46.7000007629395, 46.4000015258789, 
    45.9000015258789, 45.2999992370605, 44.7000007629395, 44.2000007629395, 
    42.5, 41.9000015258789, 42.5, 46.7000007629395, 48.0999984741211, 
    48.0999984741211, 49.5999984741211, 47.2999992370605, 45.2999992370605, 
    39.0999984741211, 32.7999992370605, 32.7999992370605, 34, 34, 
    34.7999992370605, 36, 36, 36, 36, 36, 36, 36, 36, 35.4000015258789, 
    34.7999992370605, 34.7999992370605, 34.7999992370605, 34, 34, 
    34.7999992370605, 35.4000015258789, 36, 36, 36, 36.7999992370605, 
    34.7999992370605, 35.0999984741211, 36.7999992370605, 38.7999992370605, 
    38.7999992370605, 39.5999984741211, 39.5999984741211, 40.7999992370605, 
    40.7999992370605, 40.2000007629395, 39.5999984741211, 38.7999992370605, 
    38.5, 37.7000007629395, 37.7000007629395, 37.7000007629395, 37.7000007629395, 
    37.7000007629395, 37.7000007629395, 37.7000007629395, 37.7000007629395, 
    36.7999992370605, 36.7999992370605, 36.7999992370605, 36.7999992370605, 
    36.7999992370605, 36.7999992370605, 36.7999992370605, 36.7999992370605, 
    36.7999992370605, 36.7999992370605, 36.7999992370605, 36, 36, 
    34.7999992370605, 34, 34, 33.4000015258789, 32.7999992370605, 
    32, 32.5999984741211, 32.5999984741211, 32, 34, 34, 34, 33.4000015258789, 
    32.7999992370605, 32.5999984741211, 33.4000015258789, 33.4000015258789, 
    32.7999992370605, 32.7999992370605, 32, 31.1000003814697, 31.1000003814697, 
    31.1000003814697, 31.1000003814697, 30.6000003814697, 30, 32, 
    45.2999992370605, 56.5999984741211, 66, 68, 74.1999969482422, 
    79.9000015258789, 87.1999969482422, 99.0999984741211, 105, 102, 
    102, 108, 113, 120, 126, 135, 135, 135, 135, 135, 135, 135, 159, 
    179, 218, 187, 159, 139, 135, 135, 124, 128, 124, 124, 135, 135, 
    218, 278, 265, 278, 292, 385, 365, 385, 459, 436, 360, 306, 265, 
    265, 337, 345, 436, 385, 337, 385, 425, 365, 320, 311, 292, 311, 
    337, 436, 413, 354, 306, 278, 213, 246, 228, 208, 199, 189, 179, 
    175, 259, 306, 278, 278, 365, 484, 997, 968, 915, 835, 767, 753, 
    753, 767, 782, 782, 767, 767, 767, 699, 646, 538, 484, 425, 425, 
    459, 646, 1320, 2030, 2100, 1600, 1320, 1130, 1170, 1090, 1140, 
    968, 929, 835, 793, 835, 929, 875, 889, 1040, 1180, 1060, 954, 
    835, 699, 646, 606, 631, 646, 620, 631, 739, 767, 728, 592, 552, 
    566, 631, 552, 498, 436, 394, 413, 436, 1990, 1360, 1060, 900, 
    835, 807, 782, 807, 782, 915, 889, 875, 782, 674, 473, 552, 513, 
    513, 484, 513, 436, 413, 447, 425, 385, 566, 566, 271, 328, 306, 
    306, 283, 252, 228, 223, 218, 228, 234, 252, 218, 218, 208, 208, 
    228, 213, 208, 208, 203, 203, 213, 213, 189, 208, 240, 223, 223, 
    218, 218, 213, 208, 208, 208, 208, 213, 208, 203, 189, 189, 184, 
    179, 175, 171, 159, 163, 159, 146, 150, 154, 159, 159, 154, 146, 
    146, 119, 90.9000015258789, 63.0999984741211, 64.8000030517578, 
    64.8000030517578, 60.9000015258789, 62.9000015258789, 62.9000015258789, 
    62.9000015258789, 58.9000015258789, 58.9000015258789, 65.6999969482422, 
    63.7000007629395, 61.7000007629395, 60, 56.0999984741211, 56.0999984741211, 
    56.0999984741211, 49.2999992370605, 44.5, 42.5, 39.5999984741211, 
    39.5999984741211, 42.5, 41.5999984741211, 36.7999992370605, 36, 
    40.7999992370605, 45.5999984741211, 50.4000015258789, 55.2000007629395, 
    55.2000007629395, 56.0999984741211, 55.2000007629395, 50.4000015258789, 
    49.2999992370605, 48.4000015258789, 47.2999992370605, 50.4000015258789, 
    49.2999992370605, 52.0999984741211, 48.4000015258789, 48.4000015258789, 
    48.4000015258789, 48.4000015258789, 48.4000015258789, 49.2999992370605, 
    47.2999992370605, 48.4000015258789, 48.4000015258789, 48.4000015258789, 
    49.2999992370605), year = c(1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 
    1911, 1911, 1911, 1911, 1911, 1911, 1911, 1911, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 
    1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912, 1912
    )), class = "data.frame", row.names = c(NA, -611L))

最佳答案

一个有用的常见技巧是对值的逻辑向量使用mean 来获得比例:

a %>% 
    group_by(year) %>% 
    summarise(per = scales::percent(mean(value < 112)))
## A tibble: 2 x 2
#   year per  
#  <dbl> <chr>
#1  1911 23.3%
#2  1912 40.7%

关于r - 按年份低于阈值的值的百分比，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58828020/

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r - 按年份低于阈值的值的百分比