QGIS algorithm - i.cluster

QGIS Algorithm provided by GRASS i.cluster (grass:i.cluster). Generates spectral signatures for land cover types in an image using a clustering algorithm.

grass_i_cluster(
  input = qgisprocess:::qgis_default_value(),
  classes = qgisprocess:::qgis_default_value(),
  seed = qgisprocess:::qgis_default_value(),
  sample = qgisprocess:::qgis_default_value(),
  iterations = qgisprocess:::qgis_default_value(),
  convergence = qgisprocess:::qgis_default_value(),
  separation = qgisprocess:::qgis_default_value(),
  min_size = qgisprocess:::qgis_default_value(),
  signaturefile = qgisprocess:::qgis_default_value(),
  reportfile = qgisprocess:::qgis_default_value(),
  GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
  GRASS_REGION_CELLSIZE_PARAMETER = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

input

multilayer - Input rasters. .

classes

number - Initial number of classes (1-255). 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.

seed

file - Name of file containing initial signatures. Path to a file.

sample

string - Sampling intervals (by row and col). 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.

iterations

number - Maximum number of iterations. 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.

convergence

number - Percent convergence. 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.

separation

number - Cluster separation. 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.

min_size

number - Minimum number of pixels in a class. 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.

signaturefile

fileDestination - Signature File. Path for new file.

reportfile

fileDestination - Final Report File. Path for new file.

GRASS_REGION_PARAMETER

extent - GRASS GIS 7 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..

GRASS_REGION_CELLSIZE_PARAMETER

number - GRASS GIS 7 region cellsize (leave 0 for default). 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()

.complete_output

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.

.quiet

logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.

.messages

logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.

Details

Outputs description

• reportfile - outputFile - Final Report File

• signaturefile - outputFile - Signature File