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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...
How to search and replace globally, starting from the cursor position and wrapping around the end of
...he cursor position before starting actual replacements, the
line addressed by '' is the line that was the current one before
that substitution command was run. (The '' address refers to the
' pseudo-mark; see :help :range and :help '' for details.)
Note that the second command (after the | comma...
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...
Call apply-like function on each row of dataframe with multiple arguments from each row
...,c('x','z')], 1, function(x) testFunc(x[1],x[2]))
EDIT To access columns by name and not index you can do something like this:
testFunc <- function(a, b) a + b
apply(dat[,c('x','z')], 1, function(y) testFunc(y['z'],y['x']))
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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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Protecting executable from reverse engineering?
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but they can all be worked around and or figured out by code analysists given the right time frame.
If you give people a program that they are able to run, then they will also be able to reverse-engineer it given enough time. That is the nature of programs. As soon as the bin...
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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