[processing][saga] Fix definition of Multiple regression points/grids alg

Fixes #21146

(cherry picked from commit 4f8e231)

Author: nyalldawson

python/plugins/processing/algs/saga/description/MultipleRegressionAnalysis(PointsandPredictorGrids).txt

@@ -2,13 +2,13 @@ Multiple Regression Analysis (Points and Predictor Grids)
 statistics_regression
 QgsProcessingParameterMultipleLayers|PREDICTORS|Predictors|3|None|False
 QgsProcessingParameterFeatureSource|POINTS|Points|-1|None|False
-QgsProcessingParameterFeatureSource|ATTRIBUTE|Dependent Variable|5|None|False
-QgsProcessingParameterFeatureSource|INFO_COEFF|Details: Coefficients|5|None|True
-QgsProcessingParameterFeatureSource|INFO_MODEL|Details: Model|5|None|True
-QgsProcessingParameterFeatureSource|INFO_STEPS|Details: Steps|5|None|True
-QgsProcessingParameterVectorDestination|RESIDUALS|Residuals
+QgsProcessingParameterField|ATTRIBUTE|Dependent Variable|None|POINTS|-1|False|False
+QgsProcessingParameterVectorDestination|INFO_COEFF|Details: Coefficients|5|None|True|True
+QgsProcessingParameterVectorDestination|INFO_MODEL|Details: Model|5|None|True|True
+QgsProcessingParameterVectorDestination|INFO_STEPS|Details: Steps|5|None|True|True
+QgsProcessingParameterVectorDestination|RESIDUALS|Residuals|-1|None|True|True
 QgsProcessingParameterRasterDestination|REGRESSION|Regression
-QgsProcessingParameterRasterDestination|REGRESCORR|Regression with Residual Correction
+QgsProcessingParameterRasterDestination|REGRESCORR|Regression with Residual Correction|None|True|True
 QgsProcessingParameterEnum|RESAMPLING|Resampling|[0] Nearest Neighbour;[1] Bilinear Interpolation;[2] Bicubic Spline Interpolation;[3] B-Spline Interpolation|False|3
 QgsProcessingParameterBoolean|COORD_X|Include X Coordinate|False
 QgsProcessingParameterBoolean|COORD_Y|Include Y Coordinate|False
@@ -17,4 +17,4 @@ QgsProcessingParameterEnum|METHOD|Method|[0] include all;[1] forward;[2] backwar
 QgsProcessingParameterNumber|P_VALUE|Significance Level|QgsProcessingParameterNumber.Double|5.000000|False|0.000000|100.000000
 QgsProcessingParameterEnum|CROSSVAL|Cross Validation|[0] none;[1] leave one out;[2] 2-fold;[3] k-fold|False|0
 QgsProcessingParameterNumber|CROSSVAL_K|Cross Validation Subsamples|QgsProcessingParameterNumber.Integer|10|False|2|None
-QgsProcessingParameterEnum|RESIDUAL_COR|Residual Interpolation|[0] Multleve B-Spline Interpolation;[1] Inverse Distance Weighted|False|0
+QgsProcessingParameterEnum|RESIDUAL_COR|Residual Interpolation|[0] Multleve B-Spline Interpolation;[1] Inverse Distance Weighted|False|0

python/plugins/processing/tests/testdata/custom/saga/points_regression.cpg

@@ -0,0 +1 @@
+UTF-8

python/plugins/processing/tests/testdata/custom/saga/points_regression.dbf

@@ -0,0 +1 @@
+GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

python/plugins/processing/tests/testdata/custom/saga/points_regression.prj

@@ -0,0 +1 @@
+GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]

python/plugins/processing/tests/testdata/custom/saga/points_regression.qpj

@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<SAGA_METADATA>
+  <HISTORY saga-version="2.3.1">
+    <MODULE library="statistics_regression" id="1" name="Multiple Regression Analysis (Points and Predictor Grids)">
+      <OPTION type="grid_system" id="PARAMETERS_GRID_SYSTEM" name="Grid system">
+        <CELLSIZE>0.0001</CELLSIZE>
+        <XMIN>18.666347944200002</XMIN>
+        <XMAX>18.7035479442</XMAX>
+        <YMIN>45.7767514376</YMIN>
+        <YMAX>45.8116514376</YMAX>
+      </OPTION>
+      <OPTION type="table_field" id="ATTRIBUTE" name="Dependent Variable" index="1">rvalue_1</OPTION>
+      <OPTION type="choice" id="RESAMPLING" name="Resampling" index="3">B-Spline Interpolation</OPTION>
+      <OPTION type="boolean" id="COORD_X" name="Include X Coordinate">FALSE</OPTION>
+      <OPTION type="boolean" id="COORD_Y" name="Include Y Coordinate">FALSE</OPTION>
+      <OPTION type="boolean" id="INTERCEPT" name="Intercept">TRUE</OPTION>
+      <OPTION type="choice" id="METHOD" name="Method" index="3">stepwise</OPTION>
+      <OPTION type="double" id="P_VALUE" name="Significance Level">5.000000</OPTION>
+      <OPTION type="choice" id="CROSSVAL" name="Cross Validation" index="0">none</OPTION>
+      <OPTION type="choice" id="RESIDUAL_COR" name="Residual Interpolation" index="0">Multleve B-Spline Interpolation</OPTION>
+      <INPUT_LIST type="grid_list" id="PREDICTORS" name="Predictors" system="PARAMETERS_GRID_SYSTEM">
+        <dem type="grid_list" id="PREDICTORS" name="Predictors" system="PARAMETERS_GRID_SYSTEM">
+          <FILE>/tmp/processing_158a4797a951407ca275f957a94862a4/e678b6f2c3484cf9b60adafa5e69b1d6/dem.sgrd</FILE>
+        </dem>
+      </INPUT_LIST>
+      <INPUT type="shapes" id="POINTS" name="Points">
+        <FILE>/tmp/processing_158a4797a951407ca275f957a94862a4/f2045b740e8e466293cb61f78c148a83/POINTS.shp</FILE>
+      </INPUT>
+      <OUTPUT type="table" id="INFO_COEFF" name="Details: Coefficients">MLRA Coefficients</OUTPUT>
+    </MODULE>
+  </HISTORY>
+  <SOURCE>
+    <FILE>/home/nyall/dev/QGIS/python/plugins/processing/tests/testdata/expected/saga/multiple_regression_points_grids_coef.dbf</FILE>
+    <DATABASE>
+      <FIELDS>
+        <FIELD TYPE="INTEGER">VAR_ID</FIELD>
+        <FIELD TYPE="STRING">VAR_NAME</FIELD>
+        <FIELD TYPE="DOUBLE">REGCOEFF</FIELD>
+        <FIELD TYPE="DOUBLE">R</FIELD>
+        <FIELD TYPE="DOUBLE">R2</FIELD>
+        <FIELD TYPE="DOUBLE">R2_ADJ</FIELD>
+        <FIELD TYPE="DOUBLE">STD_ERROR</FIELD>
+        <FIELD TYPE="DOUBLE">T</FIELD>
+        <FIELD TYPE="DOUBLE">SIG</FIELD>
+        <FIELD TYPE="DOUBLE">P</FIELD>
+      </FIELDS>
+    </DATABASE>
+    <PROJECTION></PROJECTION>
+  </SOURCE>
+  <DESCRIPTION></DESCRIPTION>
+</SAGA_METADATA>

python/plugins/processing/tests/testdata/custom/saga/points_regression.shp

@@ -0,0 +1 @@
+GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]