[FEATURE] Drop 'Frequency analysis' and 'Number of unique values in classes' algs

The functionality of both these algorithms is available in 'stats by
categories'

python/plugins/processing/algs/qgis/scripts/Frequency_analysis.py

@@ -1,47 +0,0 @@
-##Vector analysis=group
-
-#inputs
-
-##Input=source
-##Fields=field multiple Input
-##Frequency=sink table
-
-
-from processing.tools.vector import TableWriter
-from collections import defaultdict
-from qgis.core import QgsProcessingUtils, QgsFields, QgsField, QgsWkbTypes, QgsFeature
-from qgis.PyQt.QtCore import QVariant
-from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
-
-inputFields = Input.fields()
-fieldIdxs = []
-out_fields = QgsFields()
-for f in Fields:
-    idx = inputFields.indexFromName(f)
-    if idx == -1:
-        raise GeoAlgorithmExecutionException('Field not found:' + f)
-    fieldIdxs.append(idx)
-    out_fields.append(inputFields.at(idx))
-
-out_fields.append(QgsField('FREQ', QVariant.Int))
-
-(sink, Frequency) = self.parameterAsSink(parameters, 'Frequency', context,
-                                         out_fields)
-
-counts = {}
-feats = Input.getFeatures()
-nFeats = Input.featureCount()
-counts = defaultdict(int)
-for i, feat in enumerate(feats):
-    feedback.setProgress(int(100 * i / nFeats))
-    if feedback.isCanceled():
-        break
-
-    attrs = feat.attributes()
-    clazz = tuple([attrs[i] for i in fieldIdxs])
-    counts[clazz] += 1
-
-for c in counts:
-    f = QgsFeature()
-    f.setAttributes(list(c) + [counts[c]])
-    sink.addFeature(f)

python/plugins/processing/algs/qgis/scripts/Number_of_unique_values_in_classes.py

@@ -1,52 +0,0 @@
-##Vector analysis=group
-
-# inputs
-
-
-##input=source
-##class_field=field input
-##value_field=field input
-##N_unique_values=sink
-
-
-from qgis.PyQt.QtCore import QVariant
-from qgis.core import QgsFeature, QgsField, QgsProcessingUtils
-
-fields = input.fields()
-fields.append(QgsField('UNIQ_COUNT', QVariant.Int))
-
-(sink, N_unique_values) = self.parameterAsSink(parameters, 'N_unique_values', context,
-                                               fields, input.wkbType(), input.sourceCrs())
-
-
-class_field_index = input.fields().lookupField(class_field)
-value_field_index = input.fields().lookupField(value_field)
-
-outFeat = QgsFeature()
-classes = {}
-feats = input.getFeatures()
-nFeat = input.featureCount()
-for n, inFeat in enumerate(feats):
-    if feedback.isCanceled():
-        break
-    feedback.setProgress(int(100 * n / nFeat))
-    attrs = inFeat.attributes()
-    clazz = attrs[class_field_index]
-    value = attrs[value_field_index]
-    if clazz not in classes:
-        classes[clazz] = []
-    if value not in classes[clazz]:
-        classes[clazz].append(value)
-
-feats = input.getFeatures()
-for n, inFeat in enumerate(feats):
-    if feedback.isCanceled():
-        break
-    feedback.setProgress(int(100 * n / nFeat))
-    inGeom = inFeat.geometry()
-    outFeat.setGeometry(inGeom)
-    attrs = inFeat.attributes()
-    clazz = attrs[class_field_index]
-    attrs.append(len(classes[clazz]))
-    outFeat.setAttributes(attrs)
-    sink.addFeature(outFeat)