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Split delimited strings in a column and insert as new rows [duplicate]
... 4 f
10 . .
Update 2017: note the separate_rows function as described by @Tif below.
It works so much better, and it allows to "unnest" multiple columns in a single statement:
> head(mydf)
geneid chrom start end strand length gene_count
ENSG00000223972.5 chr1;chr1;chr1...
presentViewController:animated:YES view will not appear until user taps again
... your code this issue won't surface because the runloop will be kept alive by these sources. I've found the issue by using a UITableViewCell which had its selectionStyle set to UITableViewCellSelectionStyleNone, so that no selection animation triggered the runloop after the row selection handler ran...
Using jquery to get element's position relative to viewport
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It is incredible this method was added by IE5... when something is good, is good!
– roy riojas
Mar 9 '13 at 8:51
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Pros and Cons of SQLite and Shared Preferences [closed]
... are designed for this kind of data. As the data is structured and managed by the database, it can be queried to get a sub set of the data which matches certain criteria using a query language like SQL. This makes it possible to search in the data. Of course managing and searching large sets of data...
Shortest distance between a point and a line segment
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We're really just trying to avoid a divide by zero there.
– Grumdrig
Apr 13 '13 at 4:44
10
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How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?
...n instance of HttpContext. So one gets at the wrapped HttpContext instance by asking HttpContextBase for HttpApplication via GetService followed by reading the Context property of the returned HttpApplication instance.
Unlike HttpContextBase, GetService does not appear as a public member of HttpCon...
To switch from vertical split to horizontal split fast in Vim
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Ctrl-w followed by H, J, K or L (capital) will move the current window to the far left, bottom, top or right respectively like normal cursor navigation.
The lower case equivalents move focus instead of moving the window.
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Run a single Maven plugin execution?
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But is there a way to run one of these executions from the command line by using the execution ID perhaps?
No, not possible. What is possible though is to define "a" configuration to be used when the plugin is invoked from the command line using the "special" default-cli execution id:
<plug...
What do helper and helper_method do?
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#application_controller.rb
def current_user
@current_user ||= User.find_by_id!(session[:user_id])
end
helper_method :current_user
the helper method on the other hand, is for importing an entire helper to the views provided by the controller (and it's inherited controllers). What this means is d...
How do I ignore all files in a folder with a Git repository in Sourcetree?
...o track. The existence of this file itself will make git track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
– Billy Moon
Mar 12 '12 at 10:36
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