Estimates a complete mortality curve from abridged data using Calibrated Splines. The user must specify the population size and calibration data using a extrainfo string of the form PInfo[,CSHandle]. If PInfo is a number then it specifies the population per age interval in the mortality object. If PInfo is a string of the form "P=X" where X is a number then the total population is equal to X and the population per age interval will be calculated assuming the population follows a stationary distribution. If the PInfo string is not of this format then it specifies the name of a PCURVE object from which the population per mortality age interval is calculated. CSHandle is name of the results object with ResultsType="CSDATA" containing the calibration data. If not specified it defaults to "DefaultCSData_Mort-M". MALE_CALIBRATED_SPLINE and FEMALE_CALIBRATED_SPLINE buildmethods are the same as CALIBRATED_SPLINE except that the default values for CSHandle are "DefaultCSData_Mort-M" and "DefaultCSData_Mort-F" respectively.