FORTRAN Subroutines for Time Series Analysis The authors have recently been concerned in a time-series study that constituted a fairly typical piece of applied statistical research, involving extensive computations on a moderately large quantity of data. Wehave found that the many different numerical processes that were required could be built up almost completely from a small number of basic operations, and a set of FORTRAN subroutines has been written to perform these. The main purpose of this note is to describe these subroutines, but since the question of general statistical programs is topical [1], we include some general remarks. CACM January, 1963 Healy, M. J. R. Bogert, B. P. CA630106 JB March 14, 1978 2:55 PM 942 5 942 942 5 942 942 5 942 948 5 942 1118 5 942 826 5 942 826 6 942 942 6 942 942 6 942 942 6 942