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How to get a group of toggle buttons to act like radio buttons in WPF?
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The easiest way is to style a ListBom>x m> to use ToggleButtons for its ItemTemplate
<Style TargetType="{m>x m>:Type ListBom>x m>}">
<Setter Property="ListBom>x m>.ItemTemplate">
<Setter.Value>
<DataTemplate>
<Tog...
Mam>x m> or Default?
What is the best way to get the Mam>x m> value from a LINQ query that may return no rows? If I just do
17 Answers
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Statistics: combinations in Python
...See scipy.special.comb (scipy.misc.comb in older versions of scipy). When em>x m>act is False, it uses the gammaln function to obtain good precision without taking much time. In the em>x m>act case it returns an arbitrary-precision integer, which might take a long time to compute.
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Advantages of stateless programming?
...ctional mindset, but there are some situations that just seem overly complem>x m> without the ability to save state in an easy way (I don't consider Haskell's monads 'easy').
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How do I find which rpm package supplies a file I'm looking for?
As an em>x m>ample, I am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel m>x m>86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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Cosine Similarity between 2 Number Lists
...d to calculate the cosine similarity between two lists , let's say for em>x m>ample list 1 which is dataSetI and list 2 which is dataSetII . I cannot use anything such as numpy or a statistics module. I must use common modules (math, etc) (and the least modules as possible, at that, to reduce tim...
How do I copy a string to the clipboard on Windows using Python?
...ing methods along with other cool stuff.
If all you need is to put some tem>x m>t to system clipboard, this will do it:
from Tkinter import Tk
r = Tk()
r.withdraw()
r.clipboard_clear()
r.clipboard_append('i can has clipboardz?')
r.update() # now it stays on the clipboard after the window is closed
r.de...
Reshaping data.frame from wide to long format
...ou can use the same melt function as in the reshape2 package (which is an em>x m>tended & improved implementation). melt from data.table has also more parameters that the melt-function from reshape2. You can for em>x m>ample also specify the name of the variable-column:
library(data.table)
long <- mel...
How to round float numbers in javascript?
I need to round for em>x m>ample 6.688689 to 6.7 , but it always shows me 7 .
17 Answers
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How do I write JSON data to a file?
... - data is a dictionary and not yet JSON-encoded. Write it like this for mam>x m>imum compatibility (Python 2 and 3):
import json
with open('data.json', 'w') as f:
json.dump(data, f)
On a modern system (i.e. Python 3 and UTF-8 support), you can write a nicer file with
import json
with open('data....