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Selecting data frame rows based on partial string match in a column
...a data.table (but also remember that subsetting approaches for data.frames and data.tables are not identical):
library(data.table)
mtcars[rownames(mtcars) %like% "Merc", ]
iris[iris$Species %like% "osa", ]
If that is what you had, then perhaps you had just mixed up row and column positions for su...
Preserve line endings
I run sed to do some substitution on windows and I noticed that it automatically converts line endings to Unix (\n). Is there an option to tell sed to use Windows line endings (\r\n) or even better to preserve the line endings from the file?
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How to get JavaScript caller function line number? How to get JavaScript caller source URL?
...red Sep 27 '10 at 18:14
Nathan LandisNathan Landis
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Android phone orientation overview including compass
I've been trying to get my head around the Android orientation sensors for a while.
I thought I understood it. Then I realised I didn't. Now I think (hope) I have a better feeling for it again but I am still not 100%. I will try and explain my patchy understanding of it and hopefully people will be ...
Python error “ImportError: No module named”
...ssing __init__.py (now called __init__.py.bin) means python doesn't understand toolkit as a package.
You create __init__.py in the appropriate directory and everything works... ?
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How to grant remote access to MySQL for a whole subnet?
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EDIT: Consider looking at and upvoting Malvineous's answer on this page. Netmasks are a much more elegant solution.
Simply use a percent sign as a wildcard in the IP address.
From http://dev.mysql.com/doc/refman/5.1/en/grant.html
You can speci...
How to see the changes between two commits without commits in-between?
... The advantage of using git apply vs. patch is you can include renames and some other changes that are specific to git. I like using git format-patch and git am.
– Russell
Jun 12 '12 at 11:23
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Default behavior of “git push” without a branch specified
I use the following command to push to my remote branch:
12 Answers
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Make var_dump look pretty
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Note that echo, var_export, and highlight_string are all php functions and need to be inside a <?php ?> block. Yes even though the highlight_string function line has a <?php ?> pair inside, a pair is needed around the outside as well.
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Why use the SQL Server 2008 geography data type?
I am redesigning a customer database and one of the new pieces of information I would like to store along with the standard address fields (Street, City, etc.) is the geographic location of the address. The only use case I have in mind is to allow users to map the coordinates on Google maps when th...