Date:         Fri, 2 Sep 2005 17:12:56 +0200
Reply-To:     Marta García-Granero
              <biostatistics@terra.es>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Marta García-Granero
              <biostatistics@terra.es>
Organization: Asesoría Bioestadística
Subject:      Re: Syntax for Errorbars in plot
In-Reply-To:  <25668.1125669848@www83.gmx.net>
Content-Type: text/plain; charset=ISO-8859-15

Hi Karl,

KK> I produce analysis and design of my data with the following syntax:

KK> GLM
KK>   sit1 sit2 sit3 sit4 sit5 sit6 sit7 sit8 sit9 sit10 sit11 sit12 sit13 sit14
KK>   sit15 sit16 sit17 sit18
KK>   /WSFACTOR = f_time 3 Repeated f_loc 3 Repeated f_int 2 Repeated
KK>   /METHOD = SSTYPE(3)
KK>   /PLOT = PROFILE( f_time f_loc f_int f_time*f_loc f_time*f_int f_loc*f_int
KK>   f_time*f_loc*f_int f_loc*f_time*f_int f_int*f_time*f_loc
KK> f_int*f_loc*f_time
KK>  )
KK>   .... some more commands ....
KK>   /CRITERIA = ALPHA(.05)
KK>   /WSDESIGN = f_time f_loc f_int f_time*f_loc f_time*f_int f_loc*f_int
KK> f_time
KK>  *f_loc*f_int .

KK> But I don't get error bars in my plots. I am wondering what do I need to add
KK> to the syntax to get that plotted. SPSS sbould have the data and therefore I
KK> should only need to provide a commmand to make SPSS plot it for me.

You can't. You need to export the mean & standard error to a file and
plot them:

DATA LIST LIST /Year(F5.0) Mean(F4.1) SE(F4.1).
BEGIN DATA
1995 123 2.1
1996 134 2.2
1997 122 2.1
1998 156 2.4
END DATA.

COMPUTE upperval = mean+1.96*se .
COMPUTE lowerval = mean-1.96*se .
EXECUTE .
GRAPH  /HILO(SIMPLE)=VALUE( upperval lowerval mean ) BY year .

If you don't want CI but mean +/- SE, eliminate "1.96*" from both
COMPUTE lines.

Happy week end (it's near quitting time here in Spain).

 Marta                            mailto:biostatistics@terra.es