Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Group: Matrix Manipulation
Topic: Sorting and Counting
See also: cumsum prod sum

Function: cumprod
Description: cumprod computes the cumulative product of the elements in an array regarding a given dimension.

Usage: z = cumprod (x, j)
Input:
x array
j integer (number of dimension, default = 1)
Output:
z array

Example:

x = #(1, 2, 3)~#(2, 3, 4)~#(3, 4, 5)
cumprod (x)
Result:

Contents of cumprod
[1,]     1     2     3 
[2,]     2     6    12 
[3,]     6    24    60 

Group: Matrix Manipulation
Topic: Sorting and Counting
See also: cumsum prod sum

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

(C) MD*TECH Method and Data Technologies, 17.8.2000