Subgroup/Subset meta analysis in R?

More Louai Alsaloumi's questions See All

Test retest reliability?

I am planning to do test retest reliability for survey, I want to know process, how to choose my sample and sample size, what is the duration between two tests? how to get the same sample...

27 November 2017 4,383 5 View

Place attachment in Today's Globalized World

How much place attachment is important in today's globalized world? Is there such a concept with the existence of smooth mobility and the freedom of movement, validity of citizenship that allow...

01 January 1970 4,686 7 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Proloy Barua

This tutorial book many useful for generating forest plots and subgroup analysis:

https://bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/forest.html

Hongyang Ma

The book may be helpful.

"Subgroup Analyses using the Mixed-Effects-Model"

https://bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/mixed.html

Louai Alsaloumi

Wisam Akram

I need a code for Rstudio to perform the analysis and show the results (p value of the model, I^2..etc) in the graph.

I am sorry colleague really I didn't understand what you are asking about. I have done and evaluated more than 10 Metanalyses bit never used a code?

Maybe a statistician can help you better!?

Regards

Wisam

Dear Louai

At last, I could understand you! You're requesting an activation code for RStudio which a new software! Yet on personal grounds I never advise you to use pirated software! They Will hack your computer and damage it!?

Indeed, it is true. Once I have set up a pirated software which belongs back in 2005?

They hacked my Modem!? And till today I can't use it! In addition, they removed the very characteristic which comes with my browser (slimjet) to download videos from YouTube! Till the present day!?

Accordingly, I advise you to download Mecalc which simple, highly user-friendly software, and buy it. Believe me, it will be easier for you to complete your research!

Good Luck

Charles Ogbu

Apologies Louai Alsaloumi for creating another question within your question profile. I am new into the meta-analysis concept. Having done a little reading and watched videos on youtube I understand there are different kinds of meta-analysis. And the type of estimate also depends on the data, the field and the relationships that exists in theory.

I am from an engineering field. I am working on Lifecycle assessment (LCA) of wastewater treatment plants(WWTPs). I want to understand the reasons for variations and the extent of these variations in LCA studies. This looks like a problem that could be tackled with meta-analysis.

My little concept is ''Among WWTPs, compared using LCA, what are the effect of 2 factor such and technical and methods factors(each factor has about three levels) on the outcome (energy use, GWP, ATP etc.).

Dear Wisam Akram , Hongyang Ma ,Proloy Barua could you kindly suggest the type of Meta-analysis, estimates/ratios, random/fixed effect model, and reference material that could be of help. thank you