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Can dplyr package be used for conditional mutating?
...the 2nd iteration forward (which might affect timing since DT$g is already allocated?), the result also propagates back to ans1 and therefore might (if R's optimizer deems it necessary? Not sure on this...) avoid another copy that DPLYR_fun and BASE_fun need to make?
– Ken Will...
When should we use mutex and when should we use semaphore
...have to carefully track who currently has responsibility for it, much like allocated memory).
So, if you have a number of instances of a resource (say three tape drives), you could use a semaphore with a count of 3. Note that this doesn't tell you which of those tape drives you have, just that you ...
How to remove trailing whitespaces with sed?
.../' $file
fi
}
to which I add:
SRC_FILES_EXTENSIONS="js|ts|cpp|c|h|hpp|php|py|sh|cs|sql|json|ini|xml|conf"
function find_source_files() {
if [[ $# -eq 0 ]]; then
echo "$FUNCNAME will list sources files (having extensions $SRC_FILES_EXTENSIONS)"
echo "Usage :"
echo "$FUNCNAME folde...
Analytics Google API Error 403: “User does not have any Google Analytics Account”
... and added the Service User's email address. .p12 authorization using the PHP API works, but only if I check off "Read & Analyze" only in the permissions list.
– Johnny O
Sep 15 '15 at 22:18
...
Understanding Canvas and Surface concepts
...seen.
A Bitmap is just an interface to some pixel data. The pixels may be allocated by Bitmap itself when you are directly creating one, or it may be pointing to pixels it doesn't own such as what internally happens to hook a Canvas up to a Surface for drawing. (A Bitmap is created and pointed to ...
Is there a way to check which CSS styles are being used or not used on a web page?
...is is aweso -- UnCSS cannot be run on non-HTML pages, such as templates or PHP files - nevermind.......
– Brian Powell
Dec 15 '17 at 19:36
...
(13: Permission denied) while connecting to upstream:[nginx]
... in order to get audit2allow first. Reference: centos.org/forums/viewtopic.php?t=5012
– gross.jonas
Nov 13 '14 at 9:57
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How to have jQuery restrict file types on upload?
...ad field to only jpg/jpeg, png, and gif. I am doing backend checking with PHP already. I am running my submit button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
...
How do I flush the cin buffer?
...ble.
See Using fflush(stdin).
Also, see http://ubuntuforums.org/showpost.php?s=9129c7bd6e5c8fd67eb332126b59b54c&p=452568&postcount=1 for an alternative.
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Is it possible to specify the schema when connecting to postgres with JDBC?
...ch) to use it:
http://archives.postgresql.org/pgsql-jdbc/2008-07/msg00012.php
http://jdbc.postgresql.org/
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