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match.call and do.call
Raw
sessionInfo.txt
> sessionInfo()
R version 3.1.0 (2014-04-10)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats4 parallel stats graphics grDevices utils datasets
[8] methods base
other attached packages:
[1] knitr_1.8 KmerMasks_0.1.0
[3] BSgenome.Hsapiens.UCSC.hg19_1.4.0 BSgenome_1.34.1
[5] rtracklayer_1.26.2 Biostrings_2.34.1
[7] XVector_0.6.0 GenomicRanges_1.18.3
[9] GenomeInfoDb_1.2.4 IRanges_2.0.1
[11] S4Vectors_0.4.0 BiocGenerics_0.12.1
[13] devtools_1.6.1
loaded via a namespace (and not attached):
[1] base64enc_0.1-2 BatchJobs_1.5 BBmisc_1.8
[4] BiocParallel_1.0.0 bitops_1.0-6 brew_1.0-6
[7] checkmate_1.5.1 codetools_0.2-8 compiler_3.1.0
[10] DBI_0.3.1 digest_0.6.8 evaluate_0.5.5
[13] fail_1.2 foreach_1.4.2 formatR_1.0
[16] GenomicAlignments_1.2.1 iterators_1.0.7 markdown_0.7.4
[19] RCurl_1.95-4.5 Rsamtools_1.18.2 RSQLite_1.0.0
[22] sendmailR_1.2-1 stringr_0.6.2 tools_3.1.0
[25] XML_3.98-1.1 zlibbioc_1.12.0
Raw
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<h1>match.call() in and out of do.call</h1>
<pre><code class="r">f = function(w, ...) {
fun = function(x,y, ...) x+y
names(match.call(fun, expand.dots=FALSE))
}
f2 = function(...) f(...)
</code></pre>
<p>I see the same behavior in and out of do.call</p>
<pre><code class="r">do.call(f, list(w = &quot;hi&quot;, x = 5, y = 4, z = &quot;notused&quot;))
</code></pre>
<pre><code>## [1] &quot;&quot; &quot;x&quot; &quot;y&quot; &quot;...&quot;
</code></pre>
<pre><code class="r">f2(w = &quot;hi&quot;, x = 5, y = 4, z = &quot;notused&quot;)
</code></pre>
<pre><code>## [1] &quot;&quot; &quot;x&quot; &quot;y&quot; &quot;...&quot;
</code></pre>
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Raw
test.Rmd
# match.call() in and out of do.call
```{r}
f = function(w, ...) {
fun = function(x,y, ...) x+y
names(match.call(fun, expand.dots=FALSE))
}
f2 = function(...) f(...)
```
I see the same behavior in and out of do.call
```{r}
do.call(f, list(w = "hi", x = 5, y = 4, z = "notused"))
```
```{r}
f2(w = "hi", x = 5, y = 4, z = "notused")
```
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