class Descripteur

module descripteur

The documentation is here.

Instances of this class correspond to simple descriptors to which numbers are set.

Construction

__init__

builds a Descripteur with a given number.

Optional keyword:

str=s

builds from string s, using read_str;

prop=p

builds from Proportion p, using read_prop;

fic=f

builds from filename f, using read_nf;

fprop=f

builds from filename f of Proportion, using read_prop;

read_str

builds from a string, in format of simple descriptors;

read_nf

builds from a filename;

read_prop

builds from a Proportion, using loglex. For efficiency considerations, the proportions priors and posteriors are translated differently (see descriptors):

• priors are clustered in a tree from the last letters to the first ones, and each leaf of this tree will be the output of the corresponding posterior. Afterwards, these labels are output with backward-or (|{}) operator along the edges of the tree, and the posteriors are output in their specific format. The order in backward-or operator is not related with any order in the proportions. Priority is given to the most specific prior. The −100000 labels are for no-matching priors.

  Example: The output of the posteriors are replaced by the `'.

  

• posteriors are clustered in a tree from the first letters to the last ones, and each leaf of this tree is the logarithm of the corresponding proportion. Afterwards, the labels are output with the here-or (|()) and forward-or (|`') operators. −100000 labels are for not-matching posteriors.

  

copy

returns itself deeply copied Descripteur, with a given number;

equals

copies from another Descripteur.

Handling

num

returns the number of the Descripteur.

prediction

computes the prediction on a data, at a given position.

Input-Output

Descripteur instances have a specific format that is described in Simple descriptors section.

__str__

outputs in specific format.