dtoolkit.transformer.AppendTF#
- class dtoolkit.transformer.AppendTF(*args, **kwargs)[source]#
A transformer could append rows data to the end of caller.
See also
pandas.DataFrame.append
This transformer’s prototype method.
Examples
>>> import pandas as pd >>> from dtoolkit.transformer import AppendTF >>> df = pd.DataFrame( ... [[1, 2], [3, 4]], ... columns=list("AB"), ... index=["x", "y"], ... ) >>> df A B x 1 2 y 3 4 >>> df2 = pd.DataFrame( ... [[5, 6], [7, 8]], ... columns=list("AB"), ... index=["x", "y"], ... ) >>> tf = AppendTF(df2) >>> tf.transform(df) A B x 1 2 y 3 4 x 5 6 y 7 8
With
ignore_index
set to True:>>> tf = AppendTF(df2, ignore_index=True) >>> tf.transform(df) A B 0 1 2 1 3 4 2 5 6 3 7 8
- Attributes:
- inverse_transform_method
Methods
fit
(*_)Fit transformer.
fit_transform
(X[, y])Fit to data, then transform it.
Undo transform to
X
.set_output
(*[, transform])Set output container.
transform
(X)Transform
X
.update_invargs
(*args, **kwargs)Inverse transform method argument entry.
transform_method