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diff -ur littler.orig/DESCRIPTION littler/DESCRIPTION
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--- littler.orig/DESCRIPTION	2015-10-29 14:13:59.000000000 +0100
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+++ littler/DESCRIPTION	2016-02-20 18:47:49.748544850 +0100
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@@ -16,7 +16,6 @@
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 License: GPL (>= 2)
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 OS_type: unix
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 Suggests: knitr
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-VignetteBuilder: knitr
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 NeedsCompilation: yes
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 Packaged: 2015-10-29 12:30:13.34583 UTC; edd
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 Repository: CRAN
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diff -ur littler.orig/vignettes/littler-examples.Rmd littler/vignettes/littler-examples.Rmd
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--- littler.orig/vignettes/littler-examples.Rmd	2015-10-29 12:39:18.000000000 +0100
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+++ littler/vignettes/littler-examples.Rmd	2016-02-20 18:43:57.558212957 +0100
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@@ -5,7 +5,6 @@
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 output: rmarkdown::html_vignette
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 vignette: >
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   %\VignetteIndexEntry{Littler Examples}
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-  %\VignetteEngine{knitr::rmarkdown}
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   \usepackage[utf8]{inputenc}
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 ---
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@@ -261,38 +260,6 @@
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 As above, it has my preferred mirror and library location hard-wired.
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-### Calling knitr
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-
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-Here is another convenience script which _knits_ a given file after
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-testing the file actually exists.
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-
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-```r
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-#!/usr/bin/r
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-#
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-# Simple helper script for knitr
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-#
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-# Dirk Eddelbuettel, May 2013
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-#
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-# GPL-2 or later
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-
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-if (is.null(argv)) {
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-    cat("Need an argument FILE.Rnw\n")
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-    q(status=-1)
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-}
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-
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-
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-file <- argv[1]
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-if (!file.exists(file)) {
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-    cat("File not found: ", file, "\n")
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-    q(status=-1)
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-}
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-
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-require(knitr)
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-knit2pdf(file)
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-
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-```
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-
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-
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 ### Running roxygen
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 Similar to the previous example, this one uses roxygen to extract