When previous results are present, the "Run analysis" button is displayed automatically. In this case, it is possible that the user, for example, resets and thereby deletes the experimental design. If the user now clicked the "Run analysis" button, this would fail.
Therefore, any change that prevents the analysis of the previous results to run correctly should cause the button to disappear. But this will be very tricky... Not sure if it is worth the effort.
When previous results are present, the "Run analysis" button is displayed automatically. In this case, it is possible that the user, for example, resets and thereby deletes the experimental design. If the user now clicked the "Run analysis" button, this would fail.
Therefore, any change that prevents the analysis of the previous results to run correctly should cause the button to disappear. But this will be very tricky... Not sure if it is worth the effort.