PNDSPY1077¶

Applies to¶

This EWI applies to the following elements (same implementation):

• pandas.core.frame.DataFrame.pct_change

• pandas.core.generic.NDFrame.pct_change

• pandas.core.series.Series.pct_change

Description¶

This issue appears when the SMA detects the use of a pandas element that has a direct equivalent in Snowpark pandas, but some scenarios might behave differently than pandas.

Missing or Unsupported Parameters: limit, freq

Scenario¶

A method with a few scenarios that aren’t supported in Snowpark.

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
result = df.pct_change()

import snowflake.snowpark.modin.pandas as pd

#EWI: PNDSPY1077 => pandas.core.frame.DataFrame.pct_change has a partial mapping, with few scenarios not supported. Check Snowpark pandas documentation for more detail.
df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
result = df.pct_change()

Recommended fix¶

The following parameters are not supported in Snowpark pandas: limit, freq.

Recommended approaches:

1. Avoid unsupported parameters: Modify your code to not use these parameters if they are not essential.

2. Use .to_pandas() for full compatibility: If you need these parameters, convert to native pandas first:

   # Convert to native pandas when unsupported parameters are needed
   native_df = df.to_pandas()
   result = native_df.pct_change(...)  # Use all parameters
   

   Copy

3. Split the operation: Perform supported operations in Snowpark pandas, then use native pandas only for the unsupported functionality.

Additional recommendations¶

Check the Snowpark pandas documentation to verify which scenarios aren’t supported for that specific element.