【发布时间】:2020-10-23 02:01:41
【问题描述】:
数据集:
structure(list(ID = c(1234, 1234, 1234, 1234, 1234, 1234, 1234,
1234, 8769, 8769, 8769, 8769, 8769, 7457, 7457, 7457, 7457, 7457,
7457, 55667, 55667, 55667, 55667, 55667, 55667, 55667, 3789,
3789, 3789, 3789, 3789, 3789), date_of_bloods = structure(c(978307200,
981072000, 1173052800, 1175731200, 1367798400, 1465171200, 1467936000,
1659916800, 1072915200, 1075680000, 1173052800, 1175731200, 1367798400,
978307200, 981072000, 1173052800, 1175731200, 1367798400, 1465171200,
978307200, 981072000, 1173052800, 1270425600, 1273104000, 1465171200,
1467936000, 1270425600, 1367798400, 1465171200, 1465257600, 1465344000,
1465430400), class = c("POSIXct", "POSIXt"), tzone = "UTC"),
result = c(90, 80, 60, 40, 25, 22, 22, 21, 70, 65, 43, 23,
22, 90, 90, 88, 86, 76, 74, 58, 46, 35, 34, 33, 30, 24, 76,
67, 56, 34, 33, 23), `mutation type` = c(1, 1, 1, 1, 1, 1,
1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3,
3, 1, 1, 1, 1, 1, 1)), row.names = c(NA, -32L), class = "data.frame")
我希望每个 ID 每年的结果中位数采用年份仅为 0、1、2、3 等格式的格式,以确保群组之间的一致性,然后绘制这些线条并显示其突变类别的一些指示。
我已经完成了:
filtered$date_of_bloods <-format(filtered$date_of_bloods,format="%Y")
#split into individual ID groups
a <- with(filtered, split(filtered, list(ID)))
#aggregate median results per year
medianfunc <- function(y) {aggregate(results ~ date_of_bloods, data = y, median)}
medians <- sapply(a, medianfunc)
# do lm per ID cohort and get slope of lines
g<- as.data.frame(medians)
coefLM <- function(x) {coef(lm(date_of_bloods ~ results, data = x))}
coefs<- sapply(g, coefLM)
实际年份无关紧要,为了统一起见,我希望它们是每个 ID 的 0、1、2、3、4 等。我不知道该怎么做?然后,我想绘制这些数据(每个 ID 的年中位血量),并以某种形式了解它们属于哪个突变类别。
我希望这不是一个太宽泛的问题。
非常感谢
【问题讨论】: