R中的复复制函数
我在R中有一个代码,它最终生成一个名为R中的复复制函数,r,loops,apply,replication,glmnet,R,Loops,Apply,Replication,Glmnet,我在R中有一个代码,它最终生成一个名为sigma的向量和3个子集,即sub1.sigma,sb2.sigma,sub3.sigma。我想重复这个过程n次,比如说10次,然后观察上面提到的向量上的值。我使用的复制函数如下 set.seed(2021) code <- replicate(10,{ data<-matrix(rnorm(100*5,mean=0,sd=1), 100, 5) colnames(data) <- c("X1", "X2
sigma
的向量和3个子集,即sub1.sigma
,sb2.sigma
,sub3.sigma
。我想重复这个过程n次,比如说10次,然后观察上面提到的向量上的值。我使用的复制函数如下
set.seed(2021)
code <- replicate(10,{
data<-matrix(rnorm(100*5,mean=0,sd=1), 100, 5)
colnames(data) <- c("X1", "X2", "X3", "X4", "X5")
data <- as.data.frame(data)
a <- 5
b <- 0.8
c <- 100
data[,2] <- a*data[,1] - b*rnorm(c)
data[,3] <- a*data[,1] + b*rnorm(c)
data[,4] <- a*data[,1] - b*rnorm(c)
library(glmnet)
library(coefplot)
A <- as.matrix(data)
set.seed(1)
results <- lapply(seq_len(ncol(A)), function(i) {
list(
cvfit = cv.glmnet(A[, -i] , A[, i] , standardize = TRUE , type.measure = "mse" , nfolds = 10 , alpha = 1)
)
})
lam <- as.data.frame(`names<-`(
lapply(results, function(x) (x$cvfit$lambda.min)),
paste0("X", seq_along(results))
))
sigma<- matrix(rnorm(1*5,mean=0,sd=1), 1, 5)
colnames(sigma) <- c("X1", "X2", "X3", "X4", "X5")
as.vector(sigma)
sub1.sigma <- subset(sigma, select = sigma <= sum(lam))
sub2.sigma <- subset(sigma, select = sigma <= 2*sum(lam))
sub3.sigma <- subset(sigma, select = sigma <= 3*sum(lam))
}, simplify = FALSE)
code[1:10]
由于您没有从
replicate
返回任何内容,因此它返回代码的最后一行,即sub3.sigma
。您可以返回一个输出列表
library(glmnet)
library(coefplot)
set.seed(2021)
code <- replicate(10,{
data<-matrix(rnorm(100*5,mean=0,sd=1), 100, 5)
colnames(data) <- c("X1", "X2", "X3", "X4", "X5")
data <- as.data.frame(data)
a <- 5
b <- 0.8
c <- 100
data[,2] <- a*data[,1] - b*rnorm(c)
data[,3] <- a*data[,1] + b*rnorm(c)
data[,4] <- a*data[,1] - b*rnorm(c)
A <- as.matrix(data)
set.seed(1)
results <- lapply(seq_len(ncol(A)), function(i) {
list(
cvfit = cv.glmnet(A[, -i] , A[, i] , standardize = TRUE , type.measure = "mse" , nfolds = 10 , alpha = 1)
)
})
lam <- as.data.frame(`names<-`(
lapply(results, function(x) (x$cvfit$lambda.min)),
paste0("X", seq_along(results))
))
sigma<- matrix(rnorm(1*5,mean=0,sd=1), 1, 5)
colnames(sigma) <- c("X1", "X2", "X3", "X4", "X5")
sub1.sigma <- subset(sigma, select = sigma <= sum(lam))
sub2.sigma <- subset(sigma, select = sigma <= 2*sum(lam))
sub3.sigma <- subset(sigma, select = sigma <= 3*sum(lam))
dplyr::lst(sigma, sub1.sigma, sub2.sigma, sub3.sigma)
}, simplify = FALSE)
库(glmnet)
图书馆(coefplot)
种子集(2021年)
代码
library(glmnet)
library(coefplot)
set.seed(2021)
code <- replicate(10,{
data<-matrix(rnorm(100*5,mean=0,sd=1), 100, 5)
colnames(data) <- c("X1", "X2", "X3", "X4", "X5")
data <- as.data.frame(data)
a <- 5
b <- 0.8
c <- 100
data[,2] <- a*data[,1] - b*rnorm(c)
data[,3] <- a*data[,1] + b*rnorm(c)
data[,4] <- a*data[,1] - b*rnorm(c)
A <- as.matrix(data)
set.seed(1)
results <- lapply(seq_len(ncol(A)), function(i) {
list(
cvfit = cv.glmnet(A[, -i] , A[, i] , standardize = TRUE , type.measure = "mse" , nfolds = 10 , alpha = 1)
)
})
lam <- as.data.frame(`names<-`(
lapply(results, function(x) (x$cvfit$lambda.min)),
paste0("X", seq_along(results))
))
sigma<- matrix(rnorm(1*5,mean=0,sd=1), 1, 5)
colnames(sigma) <- c("X1", "X2", "X3", "X4", "X5")
sub1.sigma <- subset(sigma, select = sigma <= sum(lam))
sub2.sigma <- subset(sigma, select = sigma <= 2*sum(lam))
sub3.sigma <- subset(sigma, select = sigma <= 3*sum(lam))
dplyr::lst(sigma, sub1.sigma, sub2.sigma, sub3.sigma)
}, simplify = FALSE)
result <- lapply(purrr::transpose(code), function(x) do.call(rbind, x))