Update pandas.md

PhilipMay · Nov 19, 2023 · d462177 · d462177
1 parent c75c72b
commit d462177
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/source/python/pandas.md b/source/python/pandas.md
@@ -37,11 +37,18 @@ df = pd.read_csv(
 
 - load csv without header: `df = pd.read_csv("path_or_buffer", names=["column_name_1", "column_name_2"], header=None)`
 
-## Load and Save Parquet
+## Load and Save as Parquet
 
 - save to parquet: `df.to_parquet("<file_name>.parquet.gz", compression="gzip", index=False)`
 - load from parquet: `df = read_parquet("<file_name>.parquet.gz")`
 
+## Load and Save with Pickle
+
+- save to parquet: `df.to_pickle("<file_name>.pkl.xz", compression="xz")`
+- load from parquet: `df = read_pickle("<file_name>.pkl.xz")`
+- see <https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.to_pickle.html>
+- see <https://pandas.pydata.org/docs/reference/api/pandas.read_pickle.html>
+
 ## Display Data
 
 - count values in column (without `NaN` values): `df["col_name"].value_counts()`