Try just 'i1-i2', instead of 'f=i1-i2' (without quotes around the text).
Best regards,
-John
On 14 September 2010 13:58, Josiane NJIWA <[log in to unmask]> wrote:
> Dear all,
>
> I am a new user of SPM and would like to get familiar with the software. I
> am now trying to use the Batch Editor for basic Image calculation.
> I tried for example to subtract 2 images and have filled all the steps. I
> got 3 error messages which are following:
>
>
> Can't evaluate "f=i1-i2".
> In file "C:\Josiane\Soft\spm8\spm_imcalc.m" (v1143), function "spm_imcalc"
> at line 101.
> In file "C:\Josiane\Soft\spm8\spm_imcalc_ui.m" (v3691), function
> "spm_imcalc_ui" at line 159.
> In file "C:\Josiane\Soft\spm8\config\spm_cfg_imcalc.m" (v3736), function
> "my_spm_imcalc_ui" at line 174.
>
> Does someone know what i am doing wrong?
> Thanks for your understanding and regards,
>
> Josiane.
>
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