Finding maximum value in specific range in figure window.

Data analysis in figure window tells the maximum value in complete x-axis range. How can i get the maximum value in a specific range? As in figure its showing the x-axis range 10-10.11 and telling the maximum value of y-axis 178.4. But i want to find the maximum y-axis value in range of x-axis 10-10.05, so how can i change the x-axis range ?