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Extract a dplyr tbl column as a vector
...ge:base':
#>
#> intersect, setdiff, setequal, union
db <- src_sqlite(tempfile(), create = TRUE)
iris2 <- copy_to(db, iris)
vec <- pull(iris2, Species)
head(vec)
#> [1] "setosa" "setosa" "setosa" "setosa" "setosa" "setosa"
...
How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...esults[i];
google.maps.event.addListener(marker, 'click', () => change_selection(i));
}
In older browsers, you need to create a separate scope that saves the variable in its current state by passing it as a function parameter:
for (var i = 0; i < results.length; i++) {
(function (i) ...
Android SDK on a 64-bit linux machine
...s. Your solution worked for my Linux Mint 13.
– pavel_kazlou
Sep 20 '12 at 20:55
Agree with commenter above, ubuntu 12...
How do I find and view a TFS changeset by comment text?
...
With the Power Tools installed:
tf history $/ -r | ? { $_.comment -like '*findme*' }
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How to create PDF files in Python [closed]
...th the style and markup you want for you pdf document
Executing pdfkit.from_string(...) method by passing the rendered html as parameter
This way you get a pdf document with styling and images supported.
You can install it as follows :
using pip
pip install pdfkit
You will also need to instal...
iOS Detect 3G or WiFi
...TelephonyNetworkInfo *netinfo = [[CTTelephonyNetworkInfo alloc] init];
_carrier = [[netinfo subscriberCellularProvider] carrierName];
if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyGPRS]) {
NSLog(@"2G");
} else if ([netinfo.currentRadioAccessTec...
NPM doesn't install module dependencies
...oose "Restore Packages" after doing other steps mentioned here (delete node_modules and package.lock.json, then npm install).
– Taersious
Mar 19 '18 at 15:56
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SVN needs-lock 设置强制只读属性（官方资料） - 更多技术 - 清泛网 - 专注...
...jar.$ \.odt.$ \.pdf.$ \.ppt.$ \.swf.$ \.vsd.$ \.xls.$ \.zip.[ DISCUZ_CODE_0 ]quot; %TEMP%\tempfile%2`) do (
%SVNLOOK% propget -t %2 %1 svn:needs-lock %%i 1> nul 2> nul
if ERRORLEVEL 1 (
echo commit denied, binary files must have property svn:needs-lock >&2
type %TEMP%\tempf...
Changing image size in Markdown
... to resize the image. Do not forget the space before the =.
You can skip the HEIGHT
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...y current version of ruby is ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin10.5.0] but I want to update it to the latest patch level using rvm. How can I do this?
...