Change Value

[rohitshres]

How can we change the min and max value of x and y coz my data are [[5,-8,280],[-7,-7,499],[4,-7,1283],[5,-7,14440],[6,-7,453],[7,-7,1286],[8,-7,4612],[-7,-6,7665],[-6,-6,9944]] which doesn't give me result as is wanted