[SAC-HELP] problem in RSAC1

[Arthur Snoke]

> I have a simple question. While using rsac1 which is for evenly spaced
> file, what does evenly spaced means ??? is it evenly spaced sample
> data or what?

A time series with a digitizing rate of 1 sps is an example of an evenly 
spaced data set.  All one needs is "dt" to specify the common spacing. 
One does not need to specify the values of the "X" array.

> another question is i am making some changes in header like the time of 
> the origin of an event and using wsac0 but after that for some data (not 
> all) it is saying that "data not evenly spaced" when am again using the 
> rsac1 cmd. do i need to use : CALL SETLHV ('LEVEN', .TRUE.,NERR) to 
> counter this problem?

That I do not understand.  If others cannot help I suggest you post a set 
of SAC> commands that give you that result.  Include an lh.