我有3个类别列和40个具有数值的列的数据集。我想分别计算40个数字列的第90个百分位数。
以该数据框为可重现示例:
fruit = c("apple","orange","banana","berry") #1st col
ID = c(123,3453,4563,3235) #2nd col
price1 = c(3,5,10,20) #3rd col
price2 = c(5,7,9,2) #4th col
price3 = c(4,1,11,8) #5th col
df = data.frame(fruit,ID,price1,price2,price3) #combine into a dataframe
我想做以下事情:calc_percentile = quantile(df[,3:5], probs = 0.90)
我正在寻找的输出将是:
# Column 90thPercentile
# price1 17
# price2 8.4
# price3 10.1
考虑到我有40列,一一进行是不切实际的。感谢您的帮助!
答案 0 :(得分:2)
tf.one_hot
答案 1 :(得分:1)
使用dplyr
和tidyr
:
library(dplyr)
library(tidyr)
df[,3:5] %>%
summarise_all(funs(list(quantile(., probs = 0.9)))) %>%
gather("Column", "90thPercentile")