该帮助的版本不再更新，请参见https://www.jmp.com/support/help/zh-cn/15.2 获取最新的版本.


Scripting Guide • JSL Building Blocks • Iterate • Summation
上一个
 • 
下一个
Summation
The Summation() function adds the body results over all i values. The syntax is:
Summation( initialization, limitvalue, body );
For example:
s = Summation( i = 1, 10, i );
returns 55, the result of 1+2+3+4+5+6+7+8+9+10.
The script works like this:
s =
Sets the s variable to the value of the function.
Summation(
Begins the Summation() loop.
i = 1,
Sets i to 1.
10,
Sets the limit of i to 10.
i
All values of i from 1 to 10 are added together, resulting in 55.
);
Ends the loop.
This behavior is similar to Σ in the Formula Editor. The following expression:
Summation( i = 1, N Row(), x ^ 2 );
is equivalent to the following formula in the Formula Editor: