Many changes in DBHandler

new general processing structure
just before splitting off the projects folder from this repo

Classes/DataBaseHandler/related functions/cleanUpTable.m

@@ -0,0 +1,32 @@
+function cleanedTable = cleanUpTable(inputTable)
+% Converts string numbers to numeric, 'NaN' to NaN, and tries to convert date strings to datetime.
+
+cleanedTable = inputTable;
+varNames = cleanedTable.Properties.VariableNames;
+
+for i = 1:numel(varNames)
+    col = cleanedTable.(varNames{i});
+    if iscell(col)
+        numericCol = str2double(col);
+        if all(isnan(numericCol) == strcmpi(col, 'NaN') | cellfun(@isempty, col))
+            cleanedTable.(varNames{i}) = numericCol;
+        else
+            try
+                cleanedTable.(varNames{i}) = datetime(col, 'InputFormat', 'yyyy-MM-dd HH:mm:ss.SSSSSS');
+            catch
+                cleanedTable.(varNames{i}) = string(col);
+            end
+        end
+    elseif isstring(col)
+        numericCol = str2double(col);
+        if all(isnan(numericCol) == strcmpi(col, "NaN"))
+            cleanedTable.(varNames{i}) = numericCol;
+        else
+            try
+                cleanedTable.(varNames{i}) = datetime(col, 'InputFormat', 'yyyy-MM-dd HH:mm:ss');
+            catch
+            end
+        end
+    end
+end
+end