Program for Analysis of Residua

At present, the evaluation of experimental data by means of regression methods represents one of most frequently adopted procedures thanks to large expansion of computer technology. There exist a number of professional algorithms that perform regression calculations of various functions with application of many known methods. However, the calculation results need to be additionally verified, i.e. it must be stated whether or not the solution found is sufficiently correct and accurate. For this purpose a significant tool is the analysis of residua, but this analysis is often omitted even in commercial algorithms. Therefore, a subroutine REZID was assembled: it tests the obtained set of residua by numerical and some graphical methods. The subroutine was designed mainly for use with the program set SPONA [LUKŠAN, 1982 and 1987], which is why it was written in FORTRAN 77 language.