r强制列表到数据帧
我试图获取一个嵌套列表并将内容存储到一个数据框中r强制列表到数据帧,r,list,nested-lists,R,List,Nested Lists,我试图获取一个嵌套列表并将内容存储到一个数据框中 # install.packages('Hmisc') listObj <- Hmisc::describe(iris) dataframe <- c() for(i in 1:4){ subList <- listObj[[i]] rowadd <- c( subList$descript, subList$counts[['n']], subList$counts[['missi
# install.packages('Hmisc')
listObj <- Hmisc::describe(iris)
dataframe <- c()
for(i in 1:4){
subList <- listObj[[i]]
rowadd <- c(
subList$descript,
subList$counts[['n']],
subList$counts[['missing']],
subList$counts[['distinct']],
as.character(unname(paste(subList$extremes[1:5], collapse = ', '))),
as.character(unname(paste(subList$extremes[6:10], collapse = ', ')))
)
dataframe <- rbind(dataframe, rowadd)
}
dataframe <- data.frame(dataframe, row.names = NULL)
colnames(dataframe) <- c('description', 'n', 'missing', 'distinct', 'lowest', 'highset')
该列表是Hmsic::descripe
函数的输出。这是一个测试用例
list <- Hmisc::describe(iris)
预期输出将有两个数据帧,其中以下列表对象转换为列
对于基于连续变量的列表对象,预期的数据帧如下所示
description n missing distinct lowest highest
Sepal.Length 150 0 35 4.3, 4.4, 4.5, 4.6, 4.7 7.3, 7.4, 7.6, 7.7, 7.9
Sepal.Width 150 0 23 2.0, 2.2, 2.3, 2.4, 2.5 3.9, 4.0, 4.1, 4.2, 4.4
Petal.Length 150 0 43 1.0, 1.1, 1.2, 1.3, 1.4 6.3, 6.4, 6.6, 6.7, 6.9
Petal.Width 150 0 22 0.1, 0.2, 0.3, 0.4, 0.5 2.1, 2.2, 2.3, 2.4, 2.5
description n missing distinct Values Frequency
Species 150 0 3 setosa, versicolor, virginica 50,50,50
对于基于离散变量的列表对象,预期的数据帧如下所示
description n missing distinct lowest highest
Sepal.Length 150 0 35 4.3, 4.4, 4.5, 4.6, 4.7 7.3, 7.4, 7.6, 7.7, 7.9
Sepal.Width 150 0 23 2.0, 2.2, 2.3, 2.4, 2.5 3.9, 4.0, 4.1, 4.2, 4.4
Petal.Length 150 0 43 1.0, 1.1, 1.2, 1.3, 1.4 6.3, 6.4, 6.6, 6.7, 6.9
Petal.Width 150 0 22 0.1, 0.2, 0.3, 0.4, 0.5 2.1, 2.2, 2.3, 2.4, 2.5
description n missing distinct Values Frequency
Species 150 0 3 setosa, versicolor, virginica 50,50,50
完成这项任务的任何帮助都是值得赞赏的。谢谢。首先
Hmsic
有打字错误,它是Hmisc
您可以使用$
访问列表对象的元素
我不认为有优雅的功能来制作数据帧
下面是连续数据帧的最小示例
# install.packages('Hmisc')
listObj <- Hmisc::describe(iris)
dataframe <- c()
for(i in 1:4){
subList <- listObj[[i]]
rowadd <- c(
subList$descript,
subList$counts[['n']],
subList$counts[['missing']],
subList$counts[['distinct']],
as.character(unname(paste(subList$extremes[1:5], collapse = ', '))),
as.character(unname(paste(subList$extremes[6:10], collapse = ', ')))
)
dataframe <- rbind(dataframe, rowadd)
}
dataframe <- data.frame(dataframe, row.names = NULL)
colnames(dataframe) <- c('description', 'n', 'missing', 'distinct', 'lowest', 'highset')
#安装程序包('Hmisc'))
listObj