I'm trying to include one imaging file (.png) using R markdown for R presentation. I followed the suggestion from: How to import local image using knitr for markdown but by using , I get this error:
我正在嘗試使用R markdown為R演示文稿包含一個成像文件(.png)。我按照以下建議:如何使用knitr導入本地圖像進行降價但是使用,我收到此錯誤:
Error: unexpected '[' in "
```{r,fig.width=350, fig.height=250,echo=FALSE}
library(png)
library(grid)
appimg <- readPNG('my.png')
grid.raster(appimg)
```
but failed too!
但也失敗了!
I am working on windows 7 R studio 0.98.1102 and R 3.2.1 .
我正在使用Windows 7 R studio 0.98.1102和R 3.2.1。
10
After a huge mount of Google search. I finanlly figure out what is the problem.
經過大量的谷歌搜索。我完全弄清楚問題是什么。
The key is that HTML cannot refer local file for security reason. Except that it is a local HTML file, then it can refer local file in the same file directory.
關鍵是HTML出於安全原因不能引用本地文件。除了它是本地HTML文件,它可以引用同一文件目錄中的本地文件。
And R presentation is actually a HTML file like a webpage.
R演示文稿實際上是一個像網頁一樣的HTML文件。
So, just put your image file the same directory with the HTML file, things will work. At least it worked for me.
因此,只需將您的圖像文件與HTML文件放在同一目錄中,就可以了。至少它對我有用。
Just use
5
Removing the quotes actually worked for me and note that one better doesn't keep any spaces while naming the image as in use,
刪除引號實際上對我有用,請注意,在使用時命名圖像時,最好不要保留任何空格,
Using quotes or having spaces(when renamed) hasn't worked for me in this case.
在這種情況下,使用引號或有空格(重命名時)對我來說不起作用。
2
If your output format is : slidy_presentation You can use html code:
如果輸出格式為:slidy_presentation您可以使用html代碼:
<img src="/Users/name/folder/xyz.png";>
Further, if you wish to align and adjust the image to a specific side (say right of your final output and specify a size) you can use something like -
此外,如果您希望將圖像對齊並調整到特定的一側(比如最終輸出的右側並指定尺寸),您可以使用類似的東西 -
<img src="/Users/name/folder/xyz.png"; style="max-width:280px;float:right;">
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