Problems with simultaneous use Sankey and d3tree htmlwidgets on R Notebook? - r

Question

I use R notebook for data analysis report.
I want to render Sankey and d3tree htmlwidgets on R notebook simultaneously.
I put snakey and then d3tree example code in r chunk, output is well printed on rstudio.
When I entered preview button, sankey output well appeared on html.
But, d3tree output doesn't render on html.
I tryed that put d3tree and then sankey. the result is that two of d3tree and sankey dosen't render on html.
what is the problem??
Can i solve these?
the example code like below
---
title: "test"
output: html_notebook
---
```{r, echo=FALSE}
library(networkD3)
library(treemap)
library(d3treeR)
```
```{r, echo=FALSE}
net_cycles <- list(
links = data.frame(
source = c(0,0,0,1,1,5),
target = c(1,2,3,4,5,0),
value = 10
),
nodes = data.frame(
name = letters[1:6]
)
)
```
```{r, echo=FALSE}
data(business)
business$employees.growth <- business$employees - business$employees.prev
tree <- treemap(business,
index=c("NACE1", "NACE2"),
vSize="employees",
vColor="employees.growth",
type="value",
palette="-RdGy",
range=c(-30000,30000))
```
```{r}
sankeyNetwork(
net_cycles$links,
net_cycles$nodes,
Value = "value"
)
d3tree2(
# Brewer's Red-White-Grey palette reversed with predefined range
tree
,rootname = "World"
)
```