(EL-5400) Forage Selection frequency data

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An excerpt from A pocket computer program for collecting forage selection frequency data in the field, Journal of Range Management,Technical Notes, vol-42, issue 5, SEP 1989, pages 434-436

"                                   Abstract
  An algorithm was developed to conduct bite-count sampling employing a programmable pocket computer. The BASIC program was successfully employed to collect forage selection data on rangeland livestock at a remote field site in Tibet. The program features techniques that are applicable to developing programs for sustained frequency data collection using similar battery-powered computers. Pocket computers have been demonstrated to be powerful field tools, and their potential promises to Increase as new units become available with larger memories and added features.
 …
 … I also decided to minimize the amount of labor involved in the bite-count technique by using a relatively inexpensive, battery-powered, programmable pocket computer, which could be easily used on foot or on horse at the remote field site. The objective of this article is to present the algorithm², and the programming techniques that permitted successful data collection.

                                    Materials and Methods
Computer
  The pocket computer that I used for frequency data collection was the Sharp¹ EL-5400,
 …
Fig. 1. BASIC code of a pocket computer program for collecting livestock forage selection data using the bite-count technique. This program runs on the Sharp EL5400, but with minor changes will run on similar pocket computers. "

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