python - Select random row based on intervals -


is there function in python pandas randomly selects row based on values column in dataframe (function perform roulette wheel selection)?

i.e.

 id     value  1      1  2      2  3      3

then chance 1/(1+2+3) row 1 selected, chance 2/6 row 2 , 3/6 row 3.

i know easy write own function random number between 0 , sum(value) , loop , select row wondering if there pre-defined function.

select index like:

i = choice(range(len(df)), df.value)

where choice whatever want here.

then use iloc.


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