April 26, 2025

Dataframe-2D

nrows = [0, 1, 2]
cols = [“a”, “b”]
ncols = [0, 5, 2]

# search with values
df.loc[[nrows], [cols]]
df.iloc[[nrows], [ncols]]

# get an exact value
df.at[row, col]

to_numpy()

numpy_array = df.iloc[:, 1:].to_numpy()

Series-1D

# get an exact value
series.at[row, col]