Q: What's the best way to fill an **entire** beamer slide with tikzDevice output (i.e., the `.tex` file output from the `tikz()` function in R's `tikzDevice` package)?

I've included some undesirable examples below. In summary:

1. Example 1: Can see that the input .pdf looks sloppy.
2. Example 2: Can see that simply inputting the tikzDevice output leads to spilling out over the slide
3. Example 3: Can see that simply inputting the tikzDevice output designed to fill the text region works just fine. But this is not my goal. I want to fill the **entire** slide
4. Example 4: Can see that the `\resizebox{}` leads to spillage. I was surprised this didn't work
5. Example 5: Including the tikzDevice output within another `tikzpicture` environment. This actually works fine. But a `tikzpicture` environment within a `tikzpicture` environment? Seems hacky. There must be a better way.
6. Example 6: Well, there's no actual example here. I'm just hypothesizing that there are some minimal edits one can make directly to the tikzDevice output which will lead to the desired outcome. But I've mucked around and come up with nothing.

**R Code**

```
################### Setup
library(tikzDevice)
beamer.parms = list(paperwidth   = 364.19536/72,  # converts `pt` to `in`
                    paperheight  = 273.14662/72,
                    textwidth    = 307.28987/72,
                    textheight   = 269.14662/72,
x = rnorm(1000)

#################### PDF Plot
pdf(file = "./img/img0010a-eg.pdf", 
    width = beamer.parms$paperwidth,
    height = beamer.parms$paperheight)
plot(x, main = "my title", las = 1, type = "n")
grid(lwd=2, lty="dashed", col="gray")
points(x)
dev.off()

######################## TikZ image to fill full beamer slide
tikz("./img/img0010b-eg-full.tex", 
     width = beamer.parms$paperwidth, 
     height = beamer.parms$paperheight)
plot(x, main = "my title", las = 1, type = "n")
grid(lwd=2, lty="dashed", col="gray")
points(x)
dev.off()

######################## TikZ image to fill text region of beamer slide
tikz("./img/img0010c-eg-text.tex", 
     width = beamer.parms$textwidth, 
     height = beamer.parms$textheight)
plot(x, main = "my title", las = 1, type = "n")
grid(lwd=2, lty="dashed", col="gray")
points(x)
dev.off()

```

**tikzDevice output (img0010b-eg-full.tex)**

```
\begin{tikzpicture}[x=1pt,y=1pt]
<coloring commands>
  \begin{scope}
    \path[clip] (  0.00,  0.00) rectangle (365.56,274.17);
    <more coloring commands>
    <drawing commands>
  \end{scope}
\end{tikzpicture}

```

**LaTeX Code**

```
\documentclass{beamer}
\usepackage{tikz}
\begin{document}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \begin{frame}  % fills a full slide, put is ugly because of pdf input
    \begin{tikzpicture}[remember picture,overlay]
      \node[at=(current page.center)] {
          \includegraphics[width=\paperwidth, height=\paperheight]{./img/img0010a-eg}

      };
    \end{tikzpicture}
  \end{frame}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \begin{frame}  % spills off to the right
    \input{./img/img0010b-eg-full.tex}
  \end{frame}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \begin{frame}  % fills the text region of the slide. But goal is to fill ALL.
    \input{./img/img0010c-eg-text.tex}
  \end{frame}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \begin{frame}  % Surprised this didn't work. Spills off to the right. 
   \resizebox{\paperwidth}{\paperheight}{%
     \input{./img/img0010b-eg-full.tex}
  }%
  \end{frame}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  \begin{frame}  % This works. But a tikzpicture environment inside of a 
                 % tikzpicture environment? This seems hacky. Must be a better
                 % way.
    \begin{tikzpicture}[remember picture,overlay]
      \node[at=(current page.center)] {
        \input{./img/img0010b-eg-full.tex}
      };
    \end{tikzpicture}
  \end{frame}
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\end{document} 

```

**Resulting slides**
![pdf approach](https://i.stack.imgur.com/qm2FP.jpg)

![tikzdevice with spillage](https://i.stack.imgur.com/qY78C.jpg)

![tikzdevice over text region. no spillage](https://i.stack.imgur.com/XNs4I.jpg)

![tikzdevice with resizebox. spillage](https://i.stack.imgur.com/AhPSo.jpg)

![tikzdevice inside of a tikzpicture environment. no spillage](https://i.stack.imgur.com/vf0XC.jpg)