pandas sample seed
>>> df.sample(frac=0.5, replace=True, random_state=1) num_legs num_wings num_specimen_seen dog 4 0 2 fish 0 0 8
pandas sample seed
>>> df.sample(frac=0.5, replace=True, random_state=1) num_legs num_wings num_specimen_seen dog 4 0 2 fish 0 0 8
sample based on column pandas
df1 = df[df['a']==1].sample(n=50) df0 = df[df['a']==0].sample(n=50) print(pd.concat([df1,df0]))
pandas sample
>>> df['num_legs'].sample(n=3, random_state=1) fish 0 spider 8 falcon 2 Name: num_legs, dtype: int64
pandas create sample dataframe
>>> import pandas as pd >>> sentence = 'The quick brown fox jumps over a lazy dog.' >>> words = sentence.split(' ') >>> df1 = pd.DataFrame({'key': range(len(words)), ... 'column1_Words': words, ... 'column2_Length': [len(x) for x in words] ... }) >>> df1 key column1_Words column2_Length 0 0 The 3 1 1 quick 5 2 2 brown 5 3 3 fox 3 4 4 jumps 5 5 5 over 4 6 6 a 1 7 7 lazy 4 8 8 dog. 4 >>>
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