It is likely not possible to save the image, however anovan creates a table with the same information if you request it, and it is certainly possible to save that —
y = [52.7 57.5 45.9 44.5 53.0 57.0 45.9 44.0]';
g1 = [1 2 1 2 1 2 1 2];
g2 = {'hi';'hi';'lo';'lo';'hi';'hi';'lo';'lo'};
g3 = {'may';'may';'may';'may';'june';'june';'june';'june'};
[p,Tbl] = anovan(y,{g1,g2,g3}) % Return Table Of Results
writecell(Tbl, 'MyAnovanResults.txt') % Write Table Of Results To Text File
Tanovan = readtable('MyAnovanResults.txt', 'VariableNamingRule','preserve') % Read Table Of Results
The anovan function has other outputs as well that you may want to consider requesting.
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