to_latex() does not feature to_string()'s justify parameter

Question

From to_string() :

justify : {'left', 'right'}, default None Left or right-justify the column labels. If None uses the option from the > print configuration (controlled by set_option), 'right' out of the box.

To_latex() doesnt feature such a parameter. What's a valid alternative?

Answer 1

Use the column_format argument.

import io

import pandas as pd


raw_df = io.StringIO("""\
  id1  id2  weights
0   a    2a   144.0
1   a    2b   52.5
2   b    2a   2.0
3   b    2e   1.0
""")
df = pd.read_csv(raw_df, delim_whitespace=True)

print(df.to_latex())

# Output:
# 
# \begin{tabular}{lllr}
# \toprule
# {} & id1 & id2 &  weights \\
# \midrule
# 0 &   a &  2a &    144.0 \\
# 1 &   a &  2b &     52.5 \\
# 2 &   b &  2a &      2.0 \\
# 3 &   b &  2e &      1.0 \\
# \bottomrule
# \end{tabular}

print(df.to_latex(column_format='rrrr'))

# Output:
# 
# \begin{tabular}{rrrr}
# \toprule
# {} & id1 & id2 &  weights \\
# \midrule
# 0 &   a &  2a &    144.0 \\
# 1 &   a &  2b &     52.5 \\
# 2 &   b &  2a &      2.0 \\
# 3 &   b &  2e &      1.0 \\
# \bottomrule
# \end{tabular}