filter_topn
Sort a dataset by selected columns and pick the first N rows (or exclude them).
Usage
The following shows how the step can be used in a recipe.
General syntax for using the step in a recipe. Shows the inputs and outputs the step is expected to receive and will produce respectively. For futher details see sections below.
Inputs & Outputs
The following are the inputs expected by the step and the outputs it produces. These are generally
columns (ds.first_name), datasets (ds or ds[["first_name", "last_name"]]) or models (referenced
by name e.g. "churn-clf").
Configuration
The following parameters can be used to configure the behaviour of the step by including them in
a json object as the last “input” to the step, i.e. step(..., {"param": "value", ...}) -> (output).
How many of the leading rows to keep after sorting.
One or more columns to sort by before picking the first n rows. May be a column name or a list of column names.
If true, the first n rows after sorting will be excluded from the resulting dataset.
Whether to sort in ascending order rather than descending.
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