Dear Marco,
Looks like it's a Matlab question and I'll give it a shot.
It seems to me that your parametrics definition affect DSstr/Pstr/Etype.
Since I don't know how you define the parametrics I'll give a wild guess
since you stop at this line. Your definition of parametric modulation
should be a character rather than a cell string. To convert a cell string
to character, try using char(cell_string) or define it using 'string'
In my file, I used:
'parametrics_type', {{'none'}}, ...
Hope it helps.
Kelvin
On Tue, 31 Jul 2001, Marco Tettamanti wrote:
> Dear SPMers,
> I have been unsuccessfully trying to specify a parametric design model in
> batch mode. The same model without parametric modulation works fine, but
> if I enter a parametric modulation, I get the following error message:
>
> -----------------------------------------------------------------
> ??? Conversion to cell from char is not possible.
>
> Error in ==> /home/neuro1/spm_programmi/spm99/spm_get_ons.m
> On line 336 ==> DSstr = [DSstr '[ x ' Pstr ' (' Etype ')] '];
>
> Error in ==> /home/neuro1/spm_programmi/spm99/spm_fMRI_design.m
> On line 215 ==> [SF,Cname,Pv,Pname,DSstr] = ...
>
> Error in ==> /home/neuro1/spm_programmi/spm99/spm_fmri_spm_ui.m
> On line 289 ==> [xX,Sess] = spm_fMRI_design(nscan,RT);
>
> Error in ==> /home/neuro1/spm_programmi/spm99/spm_bch.m
> On line 160 ==> spm_fmri_spm_ui;
> --------------------------------------------------------------------
>
> I have seen in the mail archive that Russ Poldrack has posted a similar
> question a while ago. It would be great if somebody could make a working
> batch script for parametric designs available :-)
> Does anybody have a clue on what's causing this error?
> I include my batch script below for reference.
> Thank you in advance for any help,
> Greetings,
>
> Marco Tettamanti
> Istituto Scientifico San Raffaele
> Reparto Medicina Nucleare
> Via Olgettina 60
> I-20132 Milano
> Italy
> Tel. 0039 - 02 - 26 42 34 60
> Fax: 0039 - 02 - 21 71 75 58
> email: [log in to unmask]
>
>
> %---------------------------------------------------------------
> % user variables defined here
> %---------------------------------------------------------------
> F1 =
> spm_get('files','/net/horus/export/home/storage_tmp/marcotettamanti/learning14/piro_03','sn*.img');
> F2 =
> spm_get('files','/net/horus/export/home/storage_tmp/marcotettamanti/learning14/piro_02','sn*.img');
>
>
> %---------------------------------------------------------------
> % batch variables defined here for analysis 'model'
> %---------------------------------------------------------------
>
> model(1) = struct( ...
> 'types', 4, ...
> 'global_effects', {'Scaling'}, ...
> 'burst_mode', 0, ...
> 'HF_fil', 'specify', ...
> 'HF_cut', [150 168], ...
> 'LF_fil', 'hrf', ...
> 'LF_cut', 4, ...
> 'int_corr', 'none', ...
> 'now_later', 1, ...
> 'stop_writing', 0, ...
> 'trial_fcon', 1, ...
> 'RT', 3, ...
> 'replicated', 0, ...
> 'nsess', 2, ...
> 'nscans', [202 202], ...
> 'files', {{F1,F2}}, ...
> 'conditions_nb', [4 4], ...
> 'conditions', [1 2], ...
> 'regressors_nb', [0 0], ...
> 'regressors', [], ...
> 'parametrics_type', {{'other','other'}}, ...
> 'parametrics', [1 2], ...
> 'stochastics_flag', [0 0], ...
> 'stochastics', []);
>
> %-------------------------------------------
>
> conditions(1) = struct( ...
> 'names', {{'RL1','JL1','RLS','JLS'}}, ...
> 'onsets', {{[106 131 156 181],[118 143 168 193],[2 27 52 80],[14 39 64
> 92]}}, ...
> 'types', {{'epochs','epochs','epochs','epochs'}}, ...
> 'bf_ev', [], ...
> 'bf_ep', [1 1 1 1], ...
> 'volterra', 0, ...
> 'variable_dur', 0);
>
> conditions(2) = conditions(1);
> conditions(2).onsets = {[2 27 52 77],[14 39 64 89],[103 128 153 181],[115
> 140 165 193]};
>
> %-------------------------------------------
>
> bf_ep(1) = struct( ...
> 'ep_type', 4, ...
> 'length',10, ...
> 'conv', 1, ...
> 'deriv', 0);
>
> %----------------------------------------
>
> parametrics(1) = struct( ...
> 'name', {{'behav','behav','behav','behav'}}, ...
> 'exp_type', {{'linear','linear','linear','linear'}}, ...
> 'trials', {{[1 2 3 4],[1 2 3 4],[1 2 3 4],[1 2 3 4]}}, ...
> 'parameters', {{[1396 1712 1384 2097],[7 7 7 8],[2983 2008 1468 1547],[7
> 8 8 7]}});
>
> parametrics(2) = parametrics(1);
> parametrics(2).parameters = {[1551 1629 2002 1550],[8 8 8 7],[1915 1976
> 1314 1522],[7 8 7 7]};
>
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