Added Table::getAggregateValueFromRowCol

composer.json

@@ -3,7 +3,7 @@
   "description": "A PHP library to transform rows into an aggregated table",
   "minimum-stability": "dev",
   "license": "MIT",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "authors": [
     {
       "name": "Sid Bachtiar",

src/OnlineSid/DataTabulator/Table.php

@@ -61,6 +61,21 @@ public function getNbRows() {
         return $this->nb_rows;
     }
 
+    /**
+     * Returns aggregate value, given row index and column index (they are NOT row ID and col ID!!!)
+     *
+     * @param int $r row index, starts from 1 because 0 is the row label
+     * @param int $c col index, starts from 1 because 0 is the col label
+     * @return mixed
+     */
+    public function getAggregateValueFromRowCol($r, $c)
+    {
+        $columns = array_keys($this->unique_columns);
+        $rows    = array_keys($this->unique_rows);
+
+        return $this->getAggregateValue($rows[$r-1], $columns[$c-1]);
+    }
+
     /**
      * @param mixed $row_id
      * @param mixed $col_id
@@ -113,4 +128,30 @@ public function getRowLabel($index)
         return $this->unique_rows[$keys[$index-1]]['name'];
     }
 
+    /**
+     * @param bool $include_headers
+     * @return array
+     */
+    public function toArray($include_headers)
+    {
+        $arr = [];
+
+        // headers
+        if ($include_headers) {
+            $row = [];
+            for ($c=0; $c < $this->getNbColumns(); $c++) {
+                $row[] = $this->getColumnLabel($c);
+            }
+            $arr[] = $row;
+        }
+
+        for ($r=0; $r < $this->getNbRows(); $r++) {
+            $row = [$this->getRowLabel($r)];
+            for ($c=0; $c < $this->getNbColumns(); $c++) {
+
+            }
+        }
+
+        return $arr;
+    }
 }

tests/OnlineSid/DataTabulator/DataTabulatorTest.php

@@ -45,5 +45,10 @@ function test1()
         $this->assertEquals( 'Name', $table->getRowLabel(0));
         $this->assertEquals( 'Joan', $table->getRowLabel(1));
         $this->assertEquals( 'Robb', $table->getRowLabel(2));
+
+        $this->assertEquals(11, $table->getAggregateValueFromRowCol(1, 1));
+        $this->assertEquals(0, $table->getAggregateValueFromRowCol(2, 1));
+        $this->assertEquals(2.3, $table->getAggregateValueFromRowCol(1, 2));
+        $this->assertEquals(8.7, $table->getAggregateValueFromRowCol(2, 2));
     }
 }