R help - Oct 2014 - Knitr: how to find out from within a .Rmd file the output type?

Hi.

Is there a way how to find out from within a .Rmd file what output format
is generated?

The reason is this: I write a paper in R markdown in RStudio. Sometimes I
generate .html, sometimes .pdf. My paper presents a table of regression
models using stargazer function. I've got the following code in my paper:

```{r, echo=FALSE, message=FALSE, results='asis'}
model2 <- lm(...)
model3 <- lm(...)
model5 <- lm(...)
stargazer(model2, model3, model5,
          ...,
          type="html")
```

Whenever I change the output format from .html do .pdf, I have to change
the line type="html" to type="latex" manually. (The same
holds true for
many other functions, e.g. xtable.)

It would be nice to replace the direct declaration with

      type=some_knitr_variable

What is the true name of the some_knitr_variable? I was not able to find it
anywhere.

Many thanks for your help.

Best wishes,
Michal

	[[alternative HTML version deleted]]

AFAIK markdown is syntactically incompatible with LaTeX, except for math mode
expressions. That is why we have separate extensions Rmd and Rnw for the two
types of files. I don't know where one could successfully make use of the
variable you are asking about.
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Go...
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Sent from my phone. Please excuse my brevity.

On October 31, 2014 4:56:26 AM PDT, "Michal Kvasni?ka" <prgosek at
gmail.com> wrote:
>Hi.
>
>Is there a way how to find out from within a .Rmd file what output
>format
>is generated?
>
>The reason is this: I write a paper in R markdown in RStudio. Sometimes
>I
>generate .html, sometimes .pdf. My paper presents a table of regression
>models using stargazer function. I've got the following code in my
>paper:
>
>```{r, echo=FALSE, message=FALSE, results='asis'}
>model2 <- lm(...)
>model3 <- lm(...)
>model5 <- lm(...)
>stargazer(model2, model3, model5,
>          ...,
>          type="html")
>```
>
>Whenever I change the output format from .html do .pdf, I have to
>change
>the line type="html" to type="latex" manually. (The same
holds true for
>many other functions, e.g. xtable.)
>
>It would be nice to replace the direct declaration with
>
>      type=some_knitr_variable
>
>What is the true name of the some_knitr_variable? I was not able to
>find it
>anywhere.
>
>Many thanks for your help.
>
>Best wishes,
>Michal
>
>	[[alternative HTML version deleted]]
>
>______________________________________________
>R-help at r-project.org mailing list
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

Try knitr::opts_knit$get('rmarkdown.pandoc.to')

Hadley

On Fri, Oct 31, 2014 at 6:56 AM, Michal Kvasni?ka <prgosek at gmail.com>
wrote:
> Hi.
>
> Is there a way how to find out from within a .Rmd file what output format
> is generated?
>
> The reason is this: I write a paper in R markdown in RStudio. Sometimes I
> generate .html, sometimes .pdf. My paper presents a table of regression
> models using stargazer function. I've got the following code in my
paper:
>
> ```{r, echo=FALSE, message=FALSE, results='asis'}
> model2 <- lm(...)
> model3 <- lm(...)
> model5 <- lm(...)
> stargazer(model2, model3, model5,
>           ...,
>           type="html")
> ```
>
> Whenever I change the output format from .html do .pdf, I have to change
> the line type="html" to type="latex" manually. (The
same holds true for
> many other functions, e.g. xtable.)
>
> It would be nice to replace the direct declaration with
>
>       type=some_knitr_variable
>
> What is the true name of the some_knitr_variable? I was not able to find it
> anywhere.
>
> Many thanks for your help.
>
> Best wishes,
> Michal
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.


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