__ __ __ __ _____ _ _ _____ _ _ _ | \/ | \ \ / / | __ \ (_) | | / ____| | | | | | \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | | | |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | | | | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | | |_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1 if you need WebShell for Seo everyday contact me on Telegram Telegram Address : @jackleetFor_More_Tools:
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integers
--------
uniform within range
sequences
---------
pick random element
pick random sample
generate random permutation
distributions on the real line:
------------------------------
uniform
triangular
normal (Gaussian)
lognormal
negative exponential
gamma
beta
pareto
Weibull
distributions on the circle (angles 0 to 2pi)
---------------------------------------------
circular uniform
von Mises
General notes on the underlying Mersenne Twister core generator:
* The period is 2**19937-1.
* It is one of the most extensively tested generators in existence.
* The random() method is implemented in C, executes in a single Python step,
and is, therefore, threadsafe.
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Used to instantiate instances of Random to get generators that don't
share state.
Class Random can also be subclassed if you want to use a different basic
generator of your own devising: in that case, override the following
methods: random(), seed(), getstate(), and setstate().
Optionally, implement a getrandbits() method so that randrange()
can cover arbitrarily large ranges.
i c C s | j | � d | _ d S( ue Initialize an instance.
Optional argument x controls seeding, as for Random.seed().
N( u seedu Noneu
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� j | � d | _ d S( u� Initialize internal state from hashable object.
None or no argument seeds from current time or from an operating
system specific randomness source if available.
For version 2 (the default), all of the bits are used if *a* is a str,
bytes, or bytearray. For version 1, the hash() of *a* is used instead.
If *a* is an int, all bits are used.
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u� Choose a random item from range(start, stop[, step]).
This fixes the problem with randint() which includes the
endpoint; in Python this is usually not what you want.
u! non-integer arg 1 for randrange()i u empty range for randrange()u non-integer stop for randrange()i u' empty range for randrange() (%d,%d, %d)u non-integer step for randrange()u zero step for randrange()N( u
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u Random.randrangec C s | j | | d � S( uJ Return random integer in range [a, b], including both end points.
i ( u randrange( u selfu au b( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu randint� s u Random.randintc
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� } q� W| | | � | S( uC Return a random int in the range [0,n). Raises ValueError if n==0.u� Underlying random() generator does not supply
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Optional arg random is a 0-argument function returning a random
float in [0.0, 1.0); by default, the standard random.random.
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u= Chooses k unique random elements from a population sequence or set.
Returns a new list containing elements from the population while
leaving the original population unchanged. The resulting list is
in selection order so that all sub-slices will also be valid random
samples. This allows raffle winners (the sample) to be partitioned
into grand prize and second place winners (the subslices).
Members of the population need not be hashable or unique. If the
population contains repeats, then each occurrence is a possible
selection in the sample.
To choose a sample in a range of integers, use range as an argument.
This is especially fast and space efficient for sampling from a
large population: sample(range(10000000), 60)
u> Population must be a sequence or set. For dicts, use list(d).i u Sample larger than populationi i i i i N( u
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Random.samplec C s | | | | j � S( uH Get a random number in the range [a, b) or [a, b] depending on rounding.( u random( u selfu au b( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu uniformP s u Random.uniformg g �?c C sx | j � } | d k r d n | | | | } | | k r` d | } d | } | | } } n | | | | | d S( u� Triangular distribution.
Continuous distribution bounded by given lower and upper limits,
and having a given mode value in-between.
http://en.wikipedia.org/wiki/Triangular_distribution
g �?g �?N( u randomu None( u selfu lowu highu modeu uu c( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu
triangularV s $
u Random.triangularc C sh | j } xP | � } d | � } t | d | } | | d } | t | � k r Pq q | | | S( u\ Normal distribution.
mu is the mean, and sigma is the standard deviation.
g �?g �?g @( u randomu
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u Random.normalvariatec C s t | j | | � � S( u� Log normal distribution.
If you take the natural logarithm of this distribution, you'll get a
normal distribution with mean mu and standard deviation sigma.
mu can have any value, and sigma must be greater than zero.
( u _expu
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lambd is 1.0 divided by the desired mean. It should be
nonzero. (The parameter would be called "lambda", but that is
a reserved word in Python.) Returned values range from 0 to
positive infinity if lambd is positive, and from negative
infinity to 0 if lambd is negative.
g �?( u _logu random( u selfu lambd( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu expovariate� s u Random.expovariatec C s | j } | d k r t | � Sd | } | t d | | � } xe | � } t t | � } | | | } | � } | d | | k s� | d | t | � k rE PqE qE d | }
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S( uF Circular data distribution.
mu is the mean angle, expressed in radians between 0 and 2*pi, and
kappa is the concentration parameter, which must be greater than or
equal to zero. If kappa is equal to zero, this distribution reduces
to a uniform random angle over the range 0 to 2*pi.
g���ư>g �?g �?( u randomu TWOPIu _sqrtu _cosu _piu _expu _acos( u selfu muu kappau randomu su ru u1u zu du u2u qu fu u3u theta( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu vonmisesvariate� s&
.
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Conditions on the parameters are alpha > 0 and beta > 0.
The probability distribution function is:
x ** (alpha - 1) * math.exp(-x / beta)
pdf(x) = --------------------------------------
math.gamma(alpha) * beta ** alpha
g u* gammavariate: alpha and beta must be > 0.0g �?g @gH�����z>g�P���?g @N( u
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u Random.gammavariatec C s� | j } | j } d | _ | d k rw | � t } t d t d | � � � } t | � | } t | � | | _ n | | | S( u� Gaussian distribution.
mu is the mean, and sigma is the standard deviation. This is
slightly faster than the normalvariate() function.
Not thread-safe without a lock around calls.
g @g �?Ng �( u randomu
gauss_nextu Noneu TWOPIu _sqrtu _logu _cosu _sin( u selfu muu sigmau randomu zu x2piu g2rad( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu gauss s
u Random.gaussc C s> | j | d � } | d k r" d S| | | j | d � Sd S( u� Beta distribution.
Conditions on the parameters are alpha > 0 and beta > 0.
Returned values range between 0 and 1.
g �?i g N( u gammavariate( u selfu alphau betau y( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu betavariateN s
u Random.betavariatec C s d | j � } d | d | S( u3 Pareto distribution. alpha is the shape parameter.g �?( u random( u selfu alphau u( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu
paretovariate` s u Random.paretovariatec C s' d | j � } | t | � d | S( uf Weibull distribution.
alpha is the scale parameter and beta is the shape parameter.
g �?( u randomu _log( u selfu alphau betau u( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu weibullvariatei s u Random.weibullvariateN(# u __name__u
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S( u SystemRandomu� Alternate random number generator using sources provided
by the operating system (such as /dev/urandom on Unix or
CryptGenRandom on Windows).
Not available on all systems (see os.urandom() for details).
c C s t j t d � d � d ?t S( u3 Get the next random number in the range [0.0, 1.0).i u bigi ( u intu
from_bytesu _urandomu RECIP_BPF( u self( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu random~ s u SystemRandom.randomc C sr | d k r t d � � n | t | � k r< t d � � n | d d } t j t | � d � } | | d | ?S( u: getrandbits(k) -> x. Generates an int with k random bits.i u( number of bits must be greater than zerou# number of bits should be an integeri i u big( u
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from_bytesu _urandom( u selfu ku numbytesu x( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu getrandbits� s u SystemRandom.getrandbitsc O s d S( u< Stub method. Not used for a system random number generator.N( u None( u selfu argsu kwds( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu seed� s u SystemRandom.seedc O s t d � � d S( uA Method should not be called for a system random number generator.u* System entropy source does not have state.N( u NotImplementedError( u selfu argsu kwds( ( u+ /opt/alt/python33/lib64/python3.3/random.pyu _notimplemented� s u SystemRandom._notimplementedN(
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