Program for Producing Histograms from Clinical Data on
| FOCAL8-176
|
Teletype
Eddy Emons, Royal Postgraduate Medical School, Hammersmith
Hospital, London, England
This program uses data from the Hypertension Clinic, which
are blood pressure measurements taken from patients in the
lying and upright positions respectively. Both the systolic
(upper) and the diastolic (lower) pressures are recorded for
each position.
FOCAL is used with all the extended functions erased. The
data are recorded with the high speed reader and stored in a
two dimensional array in field one via the integer overlay
FNEW. For each pressure measurement, the mean and standard
deviation are computed.
From the two dimensional array stored in field one another
two dimensional array is computed and stored in field zero,
representing the histogram data. FOCAL then scans through
each array and types the histogram on the teletype.
| Minimum Hardware: | 8K PDP-8/I, high speed reader
|
| Other Programs Needed: | FNEW integer overlay
|
| Storage Requirement: | Program: 515 locations; data field
one: 3900; field 0: 566 locations
|
| Restrictions: | Extended functions are deleted
|
| Source Language: | FOCAL-69
|
| Catalog:
| July 1973
|