Added format block in previous method.

@@ -821,8 +821,14 @@
     }
 }
 
-
 - (NSString*) formatYLabel:(double)value{
+
+    if (self.yLabelBlockFormatter)
+    {
+        return self.yLabelBlockFormatter(value);
+    }
+    else
+    {
         if (!self.thousandsSeparator) {
             NSString *format = self.yLabelFormat ? : @"%1.f";
             return [NSString stringWithFormat:format,value];
@@ -832,9 +838,9 @@
         [numberFormatter setFormatterBehavior: NSNumberFormatterBehavior10_4];
         [numberFormatter setNumberStyle: NSNumberFormatterDecimalStyle];
         return [numberFormatter stringFromNumber: [NSNumber numberWithDouble:value]];
+    }
 }
 
-
 - (UIView*) getLegendWithMaxWidth:(CGFloat)mWidth{
     if ([self.chartData count] < 1) {
         return nil;