uniform

hana_ml.algorithms.pal.random.uniform(conn_context, low=0, high=1, num_random=100, seed=None, thread_ratio=None)

Draw samples from a uniform distribution.

Parameters:
conn_contextConnectionContext

Database connection object.

lowfloat, optional

The lower bound.

Defaults to 0.

highfloat, optional

The upper bound.

Defaults to 1.

num_randomint, optional

Specifies the number of random data to be generated.

Defaults to 100.

seedint, optional

Indicates the seed used to initialize the random number generator:

  • 0: Uses the system time.

  • Not 0: Uses the specified seed.

Note

When multithreading is enabled, the random number sequences of different runs might be different even if the SEED value remains the same.

Defaults to 0.

thread_ratiofloat, optional

Adjusts the percentage of available threads to use, from 0 to 1. A value of 0 indicates the use of a single thread, while 1 implies the use of all possible current threads. Values outside the range will be ignored and this function heuristically determines the number of threads to use.

Defaults to 0.

Returns:
DataFrame

Dataframe containing the generated random samples.

Examples

Draw samples from a uniform distribution.

>>> res = uniform(conn_context=cc, low=-1, high=1, num_random=10)
>>> res.collect()
   ID  GENERATED_NUMBER
0   0          0.032920
1   1          0.201923
2   2          0.823313
3   3         -0.495260
4   4         -0.138329
5   5          0.677732
6   6          0.685200
7   7          0.363627
8   8          0.024849
9   9         -0.441779