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Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Factor Analysis - Rotation failed to converge in 25 iterations! Ask Question. Asked 4 years, 7 months ago. Active 4 years, 7 months ago. Viewed 4k times. I have used Oblique and Orthagonal Rotations and when I am trying to analyse my results I get the message: "Rotation failed to converge in 25 iterations" So I had to adjust this - sometimes I get the results using 29 and sometimes more than Improve this question.
M Rickaby M Rickaby 35 2 2 silver badges 7 7 bronze badges. Raise the upper bound for iterations. You can do it even in the dialog box. Beware Youtube tutorials. If you have problems with your data - I can't say. Are there other warnings being displayed?
If you have extracted, maybe, too much factors, they will require more iterations to converge. I am not getting any more errors. Connect and share knowledge within a single location that is structured and easy to search. I was doing a principal component analysis on a set of scale items in SPSS and noticed that we can set the number of "maximum iterations for convergence" in the dialog box.
I googled the meaning of "iterations" and "convergence" but only found more questions on why "rotations failed to converge in 25 iterations". Many responses simply suggested that one should increase the maximum iterations for convergence to 50 or without really explaining what the error message meant.
May I ask what is actually meant by the error message and under what circumstances it pops out? And what is the iteration process like, i. Thank you! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. What is the iteration process of doing PCA and what does convergence mean? Ask Question. Asked 1 year, 7 months ago. Active 1 year, 7 months ago. Viewed times. Improve this question.
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