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Fast check for NaN in NumPy
...timeit isnan(dot(x, x))
10000 loops, best of 3: 134 us per loop
In []: x[5e4]= NaN
In []: %timeit isnan(x.min())
100 loops, best of 3: 4.47 ms per loop
In []: %timeit isnan(x.sum())
100 loops, best of 3: 6.44 ms per loop
In []: %timeit isnan(dot(x, x))
10000 loops, best of 3: 138 us per loop
Thus...
Access lapply index names inside FUN
...ormance loss? Yes! here are the benchmarks:
> x <- as.list(seq_len(1e6))
> system.time( y <- lapply(x, function(x){parent.frame()$i[]}) )
user system elapsed
2.38 0.00 2.37
> system.time( y <- lapply(x, function(x){parent.frame()$i[]}) )
user system elapsed
2.45 0.00 2.45
> sy...
How do I check out a remote Git branch?
...jects: 100% (69/69), done.
From https://github.com/githubuser/repo-name
e6ef1e0..5029161 develop -> origin/develop
* [new branch] demo -> origin/demo
d80f8d7..359eab0 master -> origin/master
$ git checkout demo
Branch demo set up to track remote branch demo from ...
Combining multiple git repositories
... SVN import it may fail with a message like:
Rewrite 422a38a0e9d2c61098b98e6c56213ac83b7bacc2 (1/42)mv: cannot stat `/home/.../wikis/nodows/.git-rewrite/t/../index.new': No such file or directory
In this case you need to exclude the initial revision from the filter-branch - i.e. change the HEAD a...
Using Emacs to recursively find and replace in text files not already open
...ace the thing at point: gist.github.com/anonymous/055a9d62f9fc824153599724b8f44d57
– Att Righ
May 2 '17 at 11:31
can I...
In Laravel, the best way to pass different types of flash messages in the session
...what we are using in our projects gist.github.com/YavorK/7aa6e839dbe93e8854e4b033e31836a4
– Hop hop
Aug 31 '16 at 8:06
1
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How to use Single TextWatcher for multiple EditTexts?
...ngedListener(watcher);
e3.addTextChangedListener(watcher);
e4.addTextChangedListener(watcher);
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RegEx match open tags except XHTML self-contained tags
... community wiki
5 revs, 2 users 92%itsadok
98
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extra qualification error in C++
...d. Otherwise, you get an undefined reference. coliru.stacked-crooked.com/a/8f8a0cd3f9db6c94 coliru.stacked-crooked.com/a/6cd1efe94c09d521
– Zoe
May 20 at 9:19
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Eclipse hangs on loading workbench
...n I found is to delete this file: workspace/.metadata/.plugins/org.eclipse.e4.workbench/workbench
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