include images programmatically in .md document from within R chunk using knitr

Question

I want to programmatically include a lot of images in my .Rmd markdown document. Something like

```{r echo=FALSE}
cat("![](myfile_1.png)")
```

will not work, as the resulting .md output is

```
## ![](myfile_1.png)
```

I would need to get rid of the code tags ``` and the leading ##. Is there an option to directly inject markdown code from within the R chunk?

BTY: The same issue applies to HTML as well. Here also a HTML code injection from within an R chunk would be really helpful.

Answer 1

Using results ='asis' means that you don't have to mess with the hooks, comments etc as the results are not considered code, but markdown (or whatever the output format happens to be)

```{r myfile-1-plot, echo = F, results = 'asis'}
cat('\n![This is myfile_1.png](myfile1.png)\n')
```

Will result in

![This is myfile_1.png](myfile1.png)

Note that I wrapped the output text with new line markers to ensure that it is on a separate line.