topic Re: Standard Deviation Between Two Rows in SAS Programming

Standard Deviation Between Two Rows

Khaladdin — Wed, 12 Dec 2018 10:43:29 GMT

Hi,

I have a quick question about standard deviation in SAS.

Assume that I have the following dataset:

Time Value

1 25

2 32

3 23

4 26

I want to compute standard deviation of between two rows. It implies that I will have the following dataset:

Time Value Stddev

1 25 .

2 32 stddev(25;32)

3 23 stddev(32;23)

4 26 stddev(23;26)

Thanks in advance for help!

Jagadishkatam — Wed, 12 Dec 2018 11:15:54 GMT

data have;
input Time Value;
 stddev=std(value,lag(value));
cards;
1 25
2 32
3 23
4 26
;

Khaladdin — Wed, 12 Dec 2018 11:19:31 GMT

Many thanks. Works well!