title: Graph is displaying the out of plot area in Core Plot and not visible on iPhone
body: <p>I am Using Core Plot in my iPhone application. My X axis Contains Date (i.e., may be hours , one week, and one month.) And my Y axis contains Weather information. When user selects the particulate place Y range changes. Using the Automatic label format. I am taking my plot ranges as below </p>
  
  <pre><code>NSDecimalNumber *max1= [[NSDecimalNumber alloc] initWithFloat:max];
  NSDecimalNumber *min1 = [[NSDecimalNumber alloc] initWithFloat:min];
  NSDecimalNumber *length = [max1 decimalNumberBySubtracting:min1];
  plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(xLow)
                                                  length:CPTDecimalFromFloat((oneUnit*7.0f))];
  plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:[min1 decimalValue] 
                                                  length:[length decimalValue]];
  </code></pre>
  
  <p>But the problem, for places the graph plotting out of the plot area and not visible, how can I adjust the plot values?</p>