QGIS Algorithm provided by GRASS v.class (grass:v.class). Classifies attribute data, e.g. for thematic mapping.
grass_v_class(
map = qgisprocess:::qgis_default_value(),
column = qgisprocess:::qgis_default_value(),
where = qgisprocess:::qgis_default_value(),
algorithm = qgisprocess:::qgis_default_value(),
nbclasses = qgisprocess:::qgis_default_value(),
.g = qgisprocess:::qgis_default_value(),
html = qgisprocess:::qgis_default_value(),
GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_SNAP_TOLERANCE_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_MIN_AREA_PARAMETER = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)source - Input vector layer. Path to a vector layer.
field - Column name or expression. The name of an existing field. ; delimited list of existing field names.
string - WHERE conditions of SQL statement without 'where' keyword. String value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
enum of ("int", "std", "qua", "equ") - Algorithm to use for classification. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
number - Number of classes to define. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
boolean - Print only class breaks (without min and max). 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression. Original algorithm parameter name: -g.
fileDestination - Classification. Path for new file.
extent - GRASS GIS region extent. A comma delimited string of x min, x max, y min, y max. E.g. '4,10,101,105'. Path to a layer. The extent of the layer is used..
number - v.in.ogr snap tolerance (-1 = no snap). A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
number - v.in.ogr min area. A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
further parameters passed to qgisprocess::qgis_run_algorithm()
logical specifying if complete out of qgisprocess::qgis_run_algorithm() should be used (TRUE) or first output (most likely the main) should read (FALSE). Default value is TRUE.
logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.
logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.