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numpy: most efficient frequency counts for unique values in an array
....org/doc/numpy/reference/generated/numpy.bincount.html
import numpy as np
m>x m> = np.array([1,1,1,2,2,2,5,25,1,1])
y = np.bincount(m>x m>)
ii = np.nonzero(y)[0]
And then:
zip(ii,y[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,y[ii])).T
# array([[ 1, 5],
[ 2, 3],
[ 5, ...
ImportError: No module named sim>x m>
...
You probably don't have the sim>x m> Python module installed. You can find it on pypi.
To install it:
$ easy_install sim>x m>
(if you have pip installed, use pip install sim>x m> instead)
sh...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
...entially unsafe on some systems. The symptom probably won't show up on an m>x m>86, which just makes the problem more insidious; testing on m>x m>86 systems won't reveal the problem. (On the m>x m>86, misaligned accesses are handled in hardware; if you dereference an int* pointer that points to an odd address, i...
Ternary Operators in JavaScript Without an “Else”
...
First of all, a ternary em>x m>pression is not a replacement for an if/else construct - its an equivalent to an if/else construct that returns a value. That is, an if/else clause is code, a ternary em>x m>pression is an em>x m>pression, meaning that it returns a va...
Why does the em>x m>pression 0 < 0 == 0 return False in Python?
...g for sequences of relational operators to make range comparisons easy to em>x m>press. It's much nicer to be able to say 0 &lt; m>x m> &lt;= 5 than to say (0 &lt; m>x m>) and (m>x m> &lt;= 5).
These are called chained comparisons. And that's a link to the documentation for them.
With the other cases you talk about, ...
How can I convert a long to int in Java?
...
Updated, in Java 8:
Math.toIntEm>x m>act(value);
Original Answer:
Simple type casting should do it:
long l = 100000;
int i = (int) l;
Note, however, that large numbers (usually larger than 2147483647 and smaller than -2147483648) will lose some of the bi...
How to convert a string of bytes into an int?
... use the struct module to do this:
&gt;&gt;&gt; struct.unpack("&lt;L", "y\m>x m>cc\m>x m>a6\m>x m>bb")[0]
3148270713L
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Are the shift operators () arithmetic or logical in C?
...ifting a signed value, the &gt;&gt; operator is an arithmetic shift.
For em>x m>ample, assuming a 32 bit machine:
signed int m>x m>1 = 5;
assert((m>x m>1 &gt;&gt; 1) == 2);
signed int m>x m>2 = -5;
assert((m>x m>2 &gt;&gt; 1) == -3);
unsigned int m>x m>3 = (unsigned int)-5;
assert((m>x m>3 &gt;&gt; 1) == 0m>x m>7FFFFFFD);
...
I can't install python-ldap
...
Also, Windows users can em>x m>tract the .msi installer @Semmel mentioned to install into a virtualenv: How to install python-ldap on a python 2.7 virtualenv on windows without compiling (see update 2)
– Dave
Oct 29 ...
Are string.Equals() and == operator really same? [duplicate]
...i.e. it can be overridden, and the implementation used will depend on the em>x m>ecution-time type of the target object), whereas the implementation of == used is determined based on the compile-time types of the objects:
// Avoid getting confused by interning
object m>x m> = new StringBuilder("hello").ToStr...