elasticsearch-js/docs/reference/api/MlDataframeAnalysisFeatureProcessorNGramEncoding.md

Interface MlDataframeAnalysisFeatureProcessorNGramEncoding

Name	Type	Description
custom	boolean
feature_prefix	string	The feature name prefix. Defaults to ngram_ _ .
field	Field	The name of the text field to encode.
length	integer	Specifies the length of the n-gram substring. Defaults to 50. Must be greater than 0.
n_grams	integer[]	Specifies which n-grams to gather. It’s an array of integer values where the minimum value is 1, and a maximum value is 5.
start	integer	Specifies the zero-indexed start of the n-gram substring. Negative values are allowed for encoding n-grams of string suffixes. Defaults to 0.