我有以下简单示例Rmarkdown
文档(test.Rmd):
---
title: "Test Knit Caret Paralell VerboseIter"
output: html_document
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
require(caret)
require(doParallel)
```
## data
```{r data}
set.seed(998)
training <- twoClassSim()
```
## model
```{r fitmodel}
fitControl <- trainControl(
method = "repeatedcv",
number = 3,
repeats = 2,
verboseIter = T)
ncores <- detectCores()-1
cl <<- makePSOCKcluster(ncores, verbose = TRUE, outfile = "")
registerDoParallel(cl)
set.seed(825)
Fit <- train(Class ~ .,
data = training,
method = "nnet",
trControl = fitControl,
trace = FALSE
)
stopCluster(cl)
registerDoSEQ()
```
## results
```{r results}
Fit
```
我有几种选择来运行此代码或编织文档
Knit
按钮Knit
文档带有render("test.Rmd")
发生以下情况
R markdown
面板中打印在我正在研究的项目中,我想knit
使用不同参数的文档,所以我想使用最后一个选项。但是我也想看看模型拟合的进展。因此,我想使用选项3。
呈现文档时如何在控制台中获取打印的迭代信息?
这是我想看到的预期输出:
+ Fold1.Rep1: size=1, decay=0e+00
+ Fold1.Rep1: size=3, decay=0e+00
+ Fold1.Rep1: size=5, decay=0e+00
- Fold1.Rep1: size=1, decay=0e+00
+ Fold1.Rep1: size=1, decay=1e-01
- Fold1.Rep1: size=3, decay=0e+00
+ Fold1.Rep1: size=3, decay=1e-01
- Fold1.Rep1: size=5, decay=0e+00
+ Fold1.Rep1: size=5, decay=1e-01
- Fold1.Rep1: size=1, decay=1e-01
+ Fold1.Rep1: size=1, decay=1e-04
- Fold1.Rep1: size=3, decay=1e-01
+ Fold1.Rep1: size=3, decay=1e-04
- Fold1.Rep1: size=1, decay=1e-04
etc.
您可以在Rmd文件的顶部添加knit_hook
以捕获控制台输出并在渲染时打印它们。
```{r, include=FALSE}
print_output <- function(x, options) {
cat(x)
return(x)
}
knitr::knit_hooks$set(chunk = print_output)
```