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np.mean() vs np.average() in Python NumPy?
...n some cases. I have a very large single-precision array that is accessed from an h5 file. If I take the mean along axes 0 and 1, I get wildly incorrect results unless I specify dtype='float64':
>T.shape
(4096, 4096, 720)
>T.dtype
dtype('<f4')
m1 = np.average(T, axis=(0,1)) ...
How do I create a multiline Python string with inline variables?
...sked (in terms of syntax) are template strings. For example:
>>> from string import Template
>>> t = Template("This is an $example with $vars")
>>> t.substitute({ 'example': "example", 'vars': "variables"})
'This is an example with variables'
I should add though that th...
Java: splitting a comma-separated string but ignoring commas in quotes
...
Quotes should be removed from parsed tokens, after string is parsed.
– Sudhir N
Aug 4 '16 at 9:40
...
Checking if a variable is not nil and not zero in ruby
...
From Ruby 2.3.0 onward, you can combine the safe navigation operator (&.) with Numeric#nonzero?. &. returns nil if the instance was nil and nonzero? - if the number was 0:
if discount&.nonzero?
# ...
end
Or p...
Get current date/time in seconds
... get the difference between time() being our current time and a time stamp from a previous time that had been stored in a database say when a user posted something. In the event you'd like to get a formatted time like 'October 22nd, 2015' you can craft your own function to return that from a timesta...
Are Swift variables atomic?
...ly to assume as no low-level documentation is available, but you can study from assembly. Hopper Disassembler is a great tool.
@interface ObjectiveCar : NSObject
@property (nonatomic, strong) id engine;
@property (atomic, strong) id driver;
@end
Uses objc_storeStrong and objc_setProperty_atomic f...
How do I alias commands in git?
...tion by copying git-completion.bash to your home directory and sourcing it from your ~/.bashrc. (I believe I learned about this from the Pro Git online book.) On Mac OS X, I accomplished this with the following commands:
# Copy git-completion.bash to home directory
cp usr/local/git/contrib/completi...
Split a vector into chunks in R
... number of chunks of size n. I had the same problem and used the solutions from @mathheadinclouds.
– rrs
Apr 21 '14 at 18:26
...
Why Collections.sort uses merge sort instead of quicksort?
...
Highly likely from Josh Bloch §:
I did write these methods, so I suppose I'm qualified to answer. It is
true that there is no single best sorting algorithm. QuickSort has
two major deficiencies when compared to mergesort:
...
Should the folders in a solution match the namespace?
...ce.
In any case while you can't determine which folder a class file is in from the namespace, you can find it by using Go To Definition or the search solution explorer box in Visual Studio. Also this isn't really a big issue in my opinion. I don't expend even 0.1% of my development time on the prob...