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Pass a data.frame column name to a function
...e more about tidyeval here.
library(rlang)
library(tidyverse)
set.seed(123)
df <- data.frame(B = rnorm(10), D = rnorm(10))
Use column names as strings
fun3 <- function(x, ...) {
# capture strings and create variables
dots <- ensyms(...)
# unquote to evaluate inside dplyr verbs
...
RESTful Alternatives to DELETE Request Body
...ngs. The query string is part of the URI. Sending a DELETE request to /foo?123 means you are deleting a different resource than if you were to send DELETE to /foo?456.
– Nicholas Shanks
Jan 25 '16 at 17:38
...
Understanding offsetWidth, clientWidth, scrollWidth and -Height, respectively
...nswered Jan 11 '14 at 15:26
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在 App Inventor 2 中使用图像 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
How to pull request a wiki page on GitHub?
...
123
GitHub doesn't support pull requests for the wiki repository, only the main repository (this i...
Effects of changing Django's SECRET_KEY
...ership]::GeneratePassword(50,5)
With Bash (source):
# tr includes ABCabc123 and the characters from OWASP's "Password special characters list"
cat /dev/urandom | tr -dc 'A-Za-z0-9!"#$%&\''()*+,-./:;<=>?@[\]^_`{|}~' | head -c 100 ; echo
At this point I thought why not try a larger key,...
Is XSLT worth it? [closed]
...hing like:
<ReleaseNotes>
<FixedBugs>
<Bug id="123" component="Admin">Error when clicking the Foo button</Bug>
<Bug id="125" component="Core">Crash at startup when configuration is missing</Bug>
<Bug id="127" component="Admin">Er...
What is the “FS”/“GS” register intended for?
...ritten code on 6809 (with and without paged memory), 6502, z80, 68k and 80[123]?86, my perspective is that segmented memory is a horror show and I'm glad it was consigned to the dustbin of history. The use of FS and GS for efficient access of thread_local data is a happy unintended consequence of an...
What's the best way to get the last element of an array without deleting it?
... = $array[count($array)-1]; || 123 | 300 | 137 | 139 | 143 | 140 | 144 || 312 | 218 | 48 | 53 | 45 | 47 | 51 || ...
Client-server synchronization pattern / algorithm?
... a user's name has changed then the delta can be something like {revision: 123, name: "John Doe"}
– dipole_moment
Jan 3 '17 at 17:23
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