PNDSPY1016¶

Message pandas.core.series.Series.interpolate has a partial mapping because there is a not supported scenario in Snowpark pandas.

Category Warning

Description¶

This issue appears when the SMA identifies a pandas.core.series.Series.interpolate usage. Snowpark pandas currently has limitations with Series.interpolate. It isn’t supported if axis == 1, limit is set, limit_area is “outside”, or method isn’t “linear”, “bfill”, “backfill”, “ffill”, or “pad”. Also, limit_area=”inside” is supported only when method is linear.

Scenario¶

An unsupported use of pandas.core.series.Series.interpolate.

Input¶

The following example shows an unsupported use of pandas.core.series.Series.interpolate.

import pandas as pd
import numpy as np

s = pd.Series([0, 2, np.nan, 8])
s.interpolate(method='polynomial', order=2)

Output¶

The SMA adds the EWI PNDSPY1016 to the output code to indicate that it has a scenario not supported in Snowpark pandas.

from snowflake.snowpark.modin import plugin
import modin.pandas as pd
import numpy as np

df = pd.DataFrame([(0.0, np.nan, -1.0, 1.0),
                   (np.nan, 2.0, np.nan, np.nan),
                   (2.0, 3.0, np.nan, 9.0),
                   (np.nan, 4.0, -4.0, 16.0)],
                  columns=list('abcd'))
#EWI: PNDSPY1016 => pandas.core.series.Series.interpolate is not support if axis == 1, limit is set, limit_area is "outside", or method is not "linear", "bfill", "backfill", "ffill", or "pad". And limit_area="inside" is supported only when method is linear. Check Snowpark pandas documentation for more detail.
df['d'].interpolate(method='polynomial', order=2)

Recommended fix¶

Since this is an error that applies to a range of partially supported parameters, no specific fix applies to all cases. The appropriate action depends on the particular parameter combination in use.

Even though the element isn’t supported in some scenarios, you might still find a solution or workaround. This issue code only means that the SMA can’t convert the element automatically.