make new dataframe from slice
# You need copy with boolean indexing, new DataFrame constructor is not necessary:
d2 = d1[d1.a > 1].copy()
make new dataframe from slice
# You need copy with boolean indexing, new DataFrame constructor is not necessary:
d2 = d1[d1.a > 1].copy()
slicing in pandas
# Select rows 0, 1, 2 (row 3 is not selected)
surveys_df[0:3]
pandas df by row index
indices = [133, 22, 19, 203, 14, 1]
df_by_indices = df.iloc[indices, :]
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