在Matlab函数,X和y是仪器响应矩阵的列向量和参数值,分别为。Ncal是被选中的对象数目。m所选对象中返回的索引向量。-In this Matlab function, X and y are the instrumental response matrix (independent variables) and the column vector of parameter values (dependent variable), respectively. Ncal is the number of objects to be selected for the calibration set. The indexes of the selected objects are returned in vector m