Calcite | Level 5

## Partial Sum

Hi Rick

I want to find the partial sum of a process ut . The partial sum is defined as :

St=∑ uj

Lower bound for series : j=1

Upper bound for series : t

t= 1,2,...,300

I have no idea how to do this in Proc Iml.

Best Regards

1 ACCEPTED SOLUTION

Accepted Solutions
SAS Super FREQ

## Re: Partial Sum

Half the battle (and fun!) of programming is reading the doc and trying out ideas to see what works.  Give it a try; it's the best way to learn.  You might also want to investigate the colon operator (:).

If you are new to SAS/IL, try these tips for beginners.

5 REPLIES 5
SAS Super FREQ

## Re: Partial Sum

I think the CUSUM function does what you want.

Calcite | Level 5

## Re: Partial Sum

I am new to IMl , so i have no idea how to use that function .Can you write the whole program for me if it is possible ?

Regards

SAS Super FREQ

## Re: Partial Sum

Half the battle (and fun!) of programming is reading the doc and trying out ideas to see what works.  Give it a try; it's the best way to learn.  You might also want to investigate the colon operator (:).

If you are new to SAS/IL, try these tips for beginners.

Calcite | Level 5

## Re: Partial Sum

Dear Rick

Thank you very much for your assist. I get the answer. I also want to thank you for your encouragement . I think i am getting more interested in IML by doing solving this problem myself and with your excellent function.

Best Regards

Hossein

SAS Super FREQ

## Re: Partial Sum

Hurray! Congratulations.  Well done!

From The DO Loop