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Sorting multiple keys with Unix sort
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Use the -k option (or --key=POS1[,POS2]). It can appear multiple times and each key can have global options (such as n for numeric sort)
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Get Android API level of phone currently running my application [duplicate]
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412
Check android.os.Build.VERSION, which is a static class that holds various pieces of information...
Get first day of week in SQL Server
... some sensible logic built in to round up or down:
SELECT DATEDIFF(YEAR, '2010-01-01', '2011-12-31');
SELECT DATEDIFF(YEAR, '2010-12-31', '2011-01-01');
To answer how to get a Sunday:
If you want a Sunday, then pick a base date that's not a Monday but rather a Sunday. For example:
DECLARE @dt D...
Linear Regression and group by in R
... lm() function. My data is an annual time series with one field for year (22 years) and another for state (50 states). I want to fit a regression for each state so that at the end I have a vector of lm responses. I can imagine doing for loop for each state then doing the regression inside the loop ...
What is the minimum I have to do to create an RPM file?
...ir %(echo $HOME)/rpmbuild
%_tmppath %{_topdir}/tmp
EOF
cd ~/rpmbuild
2. create the tarball of your project
mkdir toybinprog-1.0
mkdir -p toybinprog-1.0/usr/bin
mkdir -p toybinprog-1.0/etc/toybinprog
install -m 755 toybinprog toybinprog-1.0/usr/bin
install -m 644 toybinprog.conf toybinprog-1.0...
How many parameters are too many? [closed]
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Benchmarking (python vs. c++ using BLAS) and (numpy)
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jfsjfs
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Converting Storyboard from iPhone to iPad
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21 Answers
21
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Swift double to string
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213
It is not casting, it is creating a string from a value with a format.
let a: Double = 1.5
let...