Struct xgboost::FeatureMap

pub struct FeatureMap(_);

Maps a feature index to a name and type, used when dumping models as text.

See dump_model for usage.

Methods

impl FeatureMap

pub fn from_file<P: AsRef<Path>>(path: P) -> Result<FeatureMap>

Read a FeatureMap from a file at given path.

File should contain one feature definition per line, and be of the form:

<number>\t<name>\t<type>\n

Type should be one of:

• i - binary feature
• q - quantitative feature
• int - integer features

E.g.:

0   age int
1   is-parent?=yes  i
2   is-parent?=no   i
3   income  int