slice pandas dataframe code example

Example 1: make new dataframe from slice

# You need copy with boolean indexing, new DataFrame constructor is not necessary:

d2 = d1[d1.a > 1].copy()

Example 2: python - row slice dataframe by number of rows

df.iloc[[1, 5]]                                               # Get rows 1 and 5
df.iloc[1:6]                                                  # Get rows 1 to 5 inclusive
df.iloc[[1, 5], df.columns.get_loc('Shop')]                   # Get only specific column
df.iloc[[1, 5], df.columns.get_indexer(['Shop', 'Category'])] # Get multiple columns

Example 3: slicing in pandas

# iloc[row slicing, column slicing]
surveys_df.iloc[0:3, 1:4]

Example 4: slicing in pandas

# Select rows 0, 1, 2 (row 3 is not selected)
surveys_df[0:3]

Example 5: get column pandas

column = df["column_name"]

Example 6: pandas df by row index

indices = [133, 22, 19, 203, 14, 1]
df_by_indices = df.iloc[indices, :]