halfway merged and pulled?!

Classes/DataBaseHandler/related functions/groupIt.m

@@ -0,0 +1,53 @@
+function resultTable = groupIt(fixedVars, dataTable, aggregationFunction)
+% groupIt Groups data in a table based on fixedVars and applies aggregationFunction to numeric data.
+%
+%   resultTable = groupIt(fixedVars, dataTable, aggregationFunction)
+%
+%   Inputs:
+%       fixedVars           - Cell array of variable names to group by
+%       dataTable           - Input MATLAB table
+%       aggregationFunction - Function handle (e.g., @mean, @min, @max)
+%
+%   Output:
+%       resultTable         - Grouped and aggregated table
+
+[G, groupKeys] = findgroups(dataTable(:, fixedVars));
+varNames = dataTable.Properties.VariableNames;
+nVars = numel(varNames);
+aggData = cell(height(groupKeys), nVars);
+groupCount = zeros(height(groupKeys), 1);
+
+for i = 1:height(groupKeys)
+    idx = (G == i);
+    groupCount(i) = sum(idx);
+    for j = 1:nVars
+        colData = dataTable.(varNames{j});
+        if isnumeric(colData)
+            if any(idx)
+                aggData{i, j} = aggregationFunction(colData(idx));
+            else
+                aggData{i, j} = NaN;
+            end
+        else
+            if iscell(colData)
+                nonEmptyIdx = find(idx & ~cellfun(@isempty, colData), 1);
+                if ~isempty(nonEmptyIdx)
+                    aggData{i, j} = colData{nonEmptyIdx};
+                else
+                    aggData{i, j} = [];
+                end
+            else
+                nonEmptyIdx = find(idx, 1);
+                if ~isempty(nonEmptyIdx)
+                    aggData{i, j} = colData(nonEmptyIdx);
+                else
+                    aggData{i, j} = [];
+                end
+            end
+        end
+    end
+end
+
+resultTable = cell2table(aggData, 'VariableNames', varNames);
+resultTable.nRows = groupCount;
+end