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Drop data frame columns by name
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@AjayOhri Yes, it would. Without a comma, you use the "list" way of selecting, which means that even when you extract a single column, you still get a data frame returned. If you use the "matrix" way, as you do, you should be aware that if you only select a si...
Node: log in a file instead of the console
....2 and v0.4; There are much better utilites now around logging. I highly recommend Winston
Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and formatting. Here is a sample of our logger.js https://gist.github.com/rtgi...
How to add a custom Ribbon tab using VBA?
...ome resources addressing it via Google but all look dodgy and outrageously complicated.
7 Answers
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Set database timeout in Entity Framework
My command keeps timing out, so I need to change the default command timeout value.
9 Answers
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How to find unused/dead code in java projects [closed]
...trumented to log when instances are created. And then a small script could compare these logs against the complete list of classes to find unused classes.
Of course, if you go at the method level you should keep performance in mind. For example, the methods could only log their first use. I dont kn...
Build an iOS app without owning a mac? [closed]
...ng your app on iTunes store you need to pay (example $99 / year) .
So For complete iOS Development Setup you need
Get Mac Mini or Mac Machine
Create Developer Account on Apple its free
After login developer account you can download Xcode IDE's .dmg file
pay $99 for publish apps on iTunes
create ...
How to use GROUP_CONCAT in a CONCAT in MySQL
...ed.
Update
Splitting in two steps. First we get a table having all values(comma separated) against a unique[Name,id]. Then from obtained table we get all names and values as a single value against each unique id
See this explained here SQL Fiddle Demo (scroll down as it has two result sets)
Edit T...
How to attach file to a github issue?
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You upload it somewhere and add the link in a comment. GitHub's Issues is rather primitive and doesn't allow attaching files.
Update: You can post images to GitHub issues now. The easiest way is to copy the image (right click, Copy image) and then paste it into the tex...
How to get the seconds since epoch from the time + date output of gmtime()?
...If you are looking for the current unix epoch time please refer to @DanJ's comment or naren's answer, this answer is incorrect!
– kosii
Mar 22 '13 at 10:52
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How can you get the Manifest Version number from the App's (Layout) XML variables?
... edited May 23 '17 at 12:18
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answered Dec 17 '10 at 14:00
Konstantin BurovKon...