MAJOR "Fisher scoring algorithm did not converge"

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adipa
Posts: 1
Joined: Wed Jun 22, 2022 9:39 pm

MAJOR "Fisher scoring algorithm did not converge"

Post by adipa »

I am trying to a do a meta-analysis with MAJOR package using the Effect size and Variance and I am getting this error, it suggests to adjust step length of the algorithm which also does not help. I have used the same data in CMA and RevMan and they give proper results, but now I have to expand the data and am checking Jamovi. Kindly help.
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MAgojam
Posts: 421
Joined: Thu Jun 08, 2017 2:33 pm
Location: Parma (Italy)

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by MAgojam »

Hey @adipa,
if you are using MAJOR v1.2.3 you should have an option to intervene on the step of the Fisher scaling algorithm. Generally the 100 predefined iterations for the algorithm in the rma() function under the hood are enough to achieve convergence.
It may happen that this does not happen and a first suggestion is to intervene on the algorithm step (reducing it).
Last week I updated the Module with this possibility. Let me know and if possible attach a omv with your ES and Sampling Variances for a check.

Cheers,
Maurizio
SergeyYegorov
Posts: 1
Joined: Mon May 22, 2023 1:18 pm

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by SergeyYegorov »

Hi @MAgojam,
I am encountering the same error message when using ORs as Effect size and SEs. Is there a workaround for this?
I know that in Metafor I would adjust the rma function, but is there a way to do this in jamovi?
Thanks!
Sergey

here are my data:
OR_calculated
0.2
0.69
0.255
0.29

SE_calculated
0.234693878
0.12244898
0.113265306
0.402295918
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MAgojam
Posts: 421
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Location: Parma (Italy)

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by MAgojam »

Hey @SergeyYegorov,
are you doing this (screenshot) with version 1.2.4 of MAJOR?
ScreenShot_20230523213355.jpeg
ScreenShot_20230523213355.jpeg (330.62 KiB) Viewed 2656 times
Cheers,
Maurizio
cynthiahs
Posts: 7
Joined: Tue Oct 18, 2022 5:31 pm

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by cynthiahs »

Hello, I'm having the same issue, and I enter the data just like in the screenshot shown above. I'm using the jamovi 2.3.28 version. Any suggestions on how to fix this issue? I also tried different Step lengths and I get the same error message.
Thanks in advance!
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MAgojam
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Joined: Thu Jun 08, 2017 2:33 pm
Location: Parma (Italy)

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by MAgojam »

Hey @Cynthias,
if there are no problems sharing the file where the error occurs, I can take a look at it, because your reference to the previous post seems to work with the jamovi solid v2.3.8 and the MAJOR module in the library (v1. 2.4), as in the attached screenshot.
ScreenShot_20230929135852.jpeg
ScreenShot_20230929135852.jpeg (360.35 KiB) Viewed 2194 times
Cheers,
Maurizio
cynthiahs
Posts: 7
Joined: Tue Oct 18, 2022 5:31 pm

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by cynthiahs »

Hi Maurizio, thank you for your reply. I tried to send the file to you but it won't attach to the message.
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MAgojam
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Re: MAJOR "Fisher scoring algorithm did not converge"

Post by MAgojam »

cynthiahs wrote: Sat Sep 30, 2023 1:22 am I tried to send the file to you but it won't attach to the message.
Thanks @Cynthias,
but you should probably zip it, do you want to try again?

Cheers,
Maurizio
cynthiahs
Posts: 7
Joined: Tue Oct 18, 2022 5:31 pm

Re: MAJOR "Fisher scoring algorithm did not converge"

Post by cynthiahs »

Thank you @Maurizio. I sent you a private message.
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