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How do you get the magnitude of a vector in Numpy?
...nner1d. Here's how it compares to other numpy methods:
import numpy as np
from numpy.core.umath_tests import inner1d
V = np.random.random_sample((10**6,3,)) # 1 million vectors
A = np.sqrt(np.einsum('...i,...i', V, V))
B = np.linalg.norm(V,axis=1)
C = np.sqrt((V ** 2).sum(-1))
D = np.sqrt((V*V)...
AngularJS : How do I switch views from a controller function?
...he regular anchor tag was also being hijacked. I re-established my context from within the Kendo widget and needed to use a method to navigate...this worked.
Thanks for the previous posts!
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Converting .NET DateTime to JSON [duplicate]
...eInt(jsonDate.substr(6)));
Or applying the following regular expression (from Tominator in the comments):
var jsonDate = jqueryCall(); // returns "/Date(1245398693390)/";
var re = /-?\d+/;
var m = re.exec(jsonDate);
var d = new Date(parseInt(m[0]));
...
What's the fastest way to convert String to Number in JavaScript?
...ound that some browsers would optimize the next test based on similar code from the previous test. Unlike the top answerer, I found that implicit was the worst method.
– Pluto
Sep 23 '14 at 23:37
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Why does Javascript getYear() return 108?
...issues now that getYear() has been deprecated in favour of getFullYear() - from quirksmode:
To make the matter even more complex, date.getYear() is deprecated nowadays and you should use date.getFullYear(), which, in turn, is not supported by the older browsers. If it works, however, it should alwa...
How can I rename a field for all documents in MongoDB?
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Anyone could potentially use this command to rename a field from the collection (By not using any _id):
dbName.collectionName.update({}, {$rename:{"oldFieldName":"newFieldName"}}, false, true);
see FYI
shar...
Split delimited strings in a column and insert as new rows [duplicate]
...
As of Dec 2014, this can be done using the unnest function from Hadley Wickham's tidyr package (see release notes http://blog.rstudio.org/2014/12/08/tidyr-0-2-0/)
> library(tidyr)
> library(dplyr)
> mydf
V1 V2
2 1 a,b,c
3 2 a,c
4 3 b,d
5 4 e,f
6 . .
&...
What does this Google Play APK publish error message mean?
...ying in Prod will be unpublished. So should i wait till it get unpublished from all Google Play Servers?
– Vikalp Patel
Jun 5 '14 at 10:45
4
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How do I install a plugin for vim?
...s symlinks) and easy to keep things updated.
# Easily install vim plugins from a source control checkout (e.g. Github)
#
# alias vim-install=rake -f ~/.vim/rakefile-vim-install
# vim-install
# vim-install uninstall
require 'ftools'
require 'fileutils'
task :default => :install
desc "Install a ...
How to convert a Drawable to a Bitmap?
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where does str_url come from? I couldn't find any Drawable function related to strings... thanks for your help.
– Rob
Jun 14 '10 at 9:08
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