INDEX EXTREME

Name:

INDEX EXTREME Type:

Let Subcommand Purpose:

Compute the index of the extreme value (i.e., the value with the largest absolute value) in a variable. Syntax:

Examples:

Note:

HELP STATISTICS

Default:

None Synonyms:

None Related Commands:

INDEX MAXIMUM	= Compute the index for the maximum value of a variable.
INDEX MINIMUM	= Compute the index for the minimum value of a variable.
MINIMUM	= Compute the minimum value of a variable.
MAXIMUM	= Compute the maximum value of a variable.
MEAN	= Compute the mean of a variable.
MAX	= Library function to compute the maximum of two numbers.
MIN	= Library function to compute the minimum of two numbers.

Applications:

Data Analysis Implementation Date:

2009/2 Program 1:

 
LET Y1 = NORMAL RANDOM NUMBERS FOR I = 1 1 100
LET A = INDEX EXTREME Y1

Program 2:

 
.  Generate a "table" plot that contains
.
.    1) Subset flow category = 1
.    2) Row denotes flow value
.       Column denotes cond value
.    3) Plot symbol denotes algorithm corresponding
.       to "extreme value"
.  Step 1: Read the data
.
dimension 400 variables
read mills96.dat flow alg cond flowcat y1 to y14
retain flow alg cond y1  subset flowcat = 1
.
.  Step 2: Perform the relevant cross-tabulations
.
let 
set let cross tabulate collapse
let ytemp  = cross tabulate group two flow cond
let xtemp  = cross tabulate group one flow cond
let extind = cross tabulate index extreme value y1 flow cond
let ntemp  = size ytemp
let vsize = 1 for i = 1 1 ntemp
.
.  Step 3: Generate the table plot using the symbol plot command
.
char 1 2 3 4 5 6 7
y1label Condition Value
x1label Flow Value
xlimits 1 24
major xtic mark number 24
minor xtic mark number 0
ylimits 1 32
major ytic mark number 32
minor ytic mark number 0
tic offset units data
tic offset 1 1
.
symbol plot ytemp xtemp vsize extind