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Confused about stdin, stdout and stderr?
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258
Standard input - this is the file handle that your process reads to get information from you.
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Understanding FFT output
...s your DC offset and carries no frequency dependent information).
You get 32 real and 32 imaginary outputs because you are using a complex to complex FFT. Remember that you've converted your 32 samples into 64 values (or 32 complex values) by extending it with zero imaginary parts. This results in ...
How to enumerate a range of numbers starting at 1
I am using Python 2.5, I want an enumeration like so (starting at 1 instead of 0):
12 Answers
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How to print a dictionary line by line in Python?
... for y in cars[x]:
print (y,':',cars[x][y])
output:
A
color : 2
speed : 70
B
color : 3
speed : 60
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Path to Powershell.exe (v 2.0)
Where is the Powershell (version 2.0) located? What is the path to Powershell.exe? I have Windows Server 2008 and Powershell installed. When I look at this folder:
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Pythonic way to print list items
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227
Assuming you are using Python 3.x:
print(*myList, sep='\n')
You can get the same behavior o...
Clone Object without reference javascript [duplicate]
...ut reference the object.
You can use lodash's clone method
var obj = {a: 25, b: 50, c: 75};
var A = _.clone(obj);
Or lodash's cloneDeep method if your object has multiple object levels
var obj = {a: 25, b: {a: 1, b: 2}, c: 75};
var A = _.cloneDeep(obj);
Or lodash's merge method if you mean to...
How do I create an empty array/matrix in NumPy?
...w-by-row:
>>> import numpy
>>> a = numpy.zeros(shape=(5,2))
>>> a
array([[ 0., 0.],
[ 0., 0.],
[ 0., 0.],
[ 0., 0.],
[ 0., 0.]])
>>> a[0] = [1,2]
>>> a[1] = [2,3]
>>> a
array([[ 1., 2.],
[ 2., 3.],
[ 0., 0.],
[ 0., ...
Command to get nth line of STDOUT
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Using sed, just for variety:
ls -l | sed -n 2p
Using this alternative, which looks more efficient since it stops reading the input when the required line is printed, may generate a SIGPIPE in the feeding process, which may in turn generate an unwanted error message:
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Suppress Scientific Notation in Numpy When Creating Array From Nested List
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269
I guess what you need is np.set_printoptions(suppress=True), for details see here:
http://pyth...