CSV loader options. More...

Public Attributes
std::string	class_column
	which column carries the class label: "" = the last column; a decimal integer = that 0-based file column index; anything else = a header column name (which implies a header row)
std::string	delimiter
	field separator: "auto" (detect from the first line), "comma", "semicolon" or "tab"
std::string	header
	whether the first line is a header row: "auto" (detect), "yes" or "no"
bool	missing_to_active
	when true, missing FEATURE tokens are replaced by missing_to and the row is kept instead of skipped; a missing CLASS label still skips the row, since a row without a label cannot be assigned to any class (the fst4 tool sets this from --csv-missing-to)
float	missing_to
	the numeric code that replaces a missing feature value when missing_to_active. The mapping is purely a substitution: to have the code imputed away, configure the accessor's missing-value substitution with the SAME code; leave that unset to keep the code in the data as an explicit missingness indicator
bool	missing_to_unpaired
	set by the caller when no missing-value substitution is configured; the load summary then names the pairing option, so that mapping-without-imputing reads as a deliberate choice rather than an oversight

Detailed Description

CSV loader options.

The documentation for this struct was generated from the following file:

Public Attributes