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How to mark-up phone numbers?
...a phone number as callable link in an HTML document. I have read the microformats approach , and I know, that the tel: scheme would be standard, but is quite literally nowhere implemented.
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How to reshape data from long to wide format
... groups, v.names = the variables that will become multiple columns in wide format, timevar = the variable containing the values that will be appended to v.names in wide format, direction = wide, and sep = "_". Clear enough? ;)
– Brian D
Nov 17 '17 at 17:11
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How to get POSTed JSON in Flask?
...400 Bad Request response), your JSON data is invalid. It is in some way malformed; you may want to check it with a JSON validator.
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How can I unit test a GUI?
...end in this type of non-security-related application, and what level of performance gain could one expect compared to MD5?
– Lèse majesté
Jul 4 '12 at 5:33
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Any way to select without causing locking in MySQL?
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MyISAM tables do not support transactions in any form. A transactional query will run on a MyISAM table, so the query you mention above will execute, but it has no effect.
– zombat
May 27 '09 at 22:15
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How to add images to README.md on GitHub?
... Yes. This is by far the easiest way unless you're worried about performance.I'd note that this is relative to the directory not the repo, so if you have 'myimage.png' in the same dir as 'about_pics.md' then the markup is:
– Rich
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setting multiple column using one update
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
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How to create cron job using PHP?
...y' value
Visit the link for the full article, it explains:
What is the format of the cronjob if you want to enter/edit it manually.
How to use PHP with SSH2 library to authenticate as the user, which crontab you are going to edit.
Full PHP class with all necessary methods for authentication, edi...
Android Reading from an Input stream efficiently
... it's creating lots of heavy String objects, copying their contents and performing operations on them. Instead, you should use StringBuilder to avoid creating new String objects on each append and to avoid copying the char arrays. The implementation for your case would be something like this:
Buffe...
How do I delete rows in a data frame?
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The key idea is you form a set of the rows you want to remove, and keep the complement of that set.
In R, the complement of a set is given by the '-' operator.
So, assuming the data.frame is called myData:
myData[-c(2, 4, 6), ] # notice the...