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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


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