;  $Id: //depot/idl/IDL_70/idldir/examples/doc/plot/plot01#1 $

;  Copyright (c) 2005-2007, ITT Visual Information Solutions. All
;       rights reserved.
; 
; This batch file defines variables used in examples in
; Chapter 10, "Plotting" of _Using IDL_.

; The following are example data from a fictitious study of Pacific
; Northwest Salmon fisheries. In the examples, these data are used
; to represent fish populations sampled in the years 1967, 1970, and
; from 1975 to 1983. The vectors defined  represent the number of
; fish counted, in thousands.

SOCKEYE=[463, 459, 437, 433, 431, 433, 431, 428, 430, 431, 430]
COHO=[468, 461, 431, 430, 427, 425, 423, 420, 418, 421, 420]
CHINOOK=[514, 509, 495, 497, 497, 494, 493, 491, 492, 493, 493]
HUMPBACK=[467, 465, 449, 446, 445, 444, 443, 443, 443, 443, 445]

; Construct an array containing all of the SAT data.

ALLPTS = [[COHO], [SOCKEYE], [HUMPBACK], [CHINOOK]]

; Construct a vector in which each element contains the year of the score.
; Create a variable containing the number of elements in the YEAR vector
; minus one.

YEAR = [1967, 1970, INDGEN(9) + 1975]
N1 = N_ELEMENTS(YEAR) - 1
; Construct a vector of names for lines.

NAMES=['Coho','Sockeye','Humpback', 'Chinook']