Trouble Plotting SPM1D Paired t-Test Results in MATLAB: 'Unrecognized Method' Warning

I have installed SPM version 12, and subsequently, I installed spm1d version M.0.4.10 (dated September 23, 2022). I used the following code to perform a paired t-test:

spm = spm1d.stats.ttest_paired(Ext_D, Ext_F); 
spmi = spm.inference(0.05, 'two_tailed', true); 
spm.plot();

The spmi object is successfully created, but when I attempt to plot it in MATLAB, I encounter a warning: 'Unrecognized method, property, or field 'plot' for class 'spm1d.stats.spm.SPM0D'.'

I'm seeking assistance to resolve this issue. Can someone please help me?

[Takeda Ryutaro]

Hello,

I think 'spmi.plot' is correct .

Answer 1

[Takeda Ryutaro]

Sorry, I posted this in the comments section by mistake.

spm1d.plot.plot_meanSD(YA,'color','r');
hold on;
spm1d.plot.plot_meanSD(YB,'color','b');

title('Data','FontSize',18);
legend({'YA','YA SD','YB','YB SD'});

%(1) Conduct SPM analysis:
spm       = spm1d.stats.ttest2(YA, YB);
spmi      = spm.inference(0.05, 'two_tailed',true, 'interp',true);
% disp(spmi);

%(2) Plot:

subplot(1,2,2);
spmi.plot();
spmi.plot_threshold_label();
spmi.plot_p_values();
title('SPM analysis','FontSize',18);

[Maria Inês]

I still have the error in spmi.plot()

These are the results I have in spmi:

SPM{t} (0D) inference

z: 0.5140

df: [1 498]

alpha: 0.0500

zstar: 1.9647

h0reject: 0

p: 0.6074

could they have any influence?

[Maria Inês]

The values I provided are already the values of the average curve for each strain gauge.

[Takeda Ryutaro]

Hi!

Seeing your data, you data size is [250,1].

Does the row represent time point?

If you want to do SPM1d, the size of the data should be [subject, timepoint].

[Maria Inês]

I already did it. Thanks :)