Turn on the data check parameter

Suggests a parameter to improve quality of data.

Whenever an application behaves unexpectedly, consider turning on the CPLEX data consistency checking and modeling assistance (DataCheck or CPX_PARAM_DATACHECK). When this parameter is turned on, CPLEX performs additional checking to verify whether arguments that are arrays actually contain valid data, such as indices within range, no duplicate entries, valid row sense indicators, and valid numeric values. Though these checks are probably too costly for deployed applications, they can be very useful during development.