Computer Program for Plotting Time Dependent Data with Instruction and Examples

摘要

The use of multichannel automatic data recorders has necessitated the development of techniques for rapid analysis and presentation of data. A computer program was developed to plot time dependent data from a storage matrix. The body of the program, entitled TIMEPLOT, is written in FORTRAN IV. To minimize the run time required, the input and output subroutines are written in F level COBOL. Time, which may range from 1 hour to 16 days, is plotted on the abscissa. The program computes the intervals at which labels are placed and determines the required annotation. Data may be plotted as frequently as one observation per minute or as infrequently as one observation per day. The ordinate may represent any parameter. A single parameter may be plotted or several parameters may be superimposed upon each other. Combinations may be arranged on a single time axis. The program was designed with special features to facilitate the plotting of microclimatic, micrometeorological, and other types of time-dependant data. Plots drawn in india ink may be photographically reduced for use in reports and journal articles. Associated utility programs are also described. (Author)