I am using panel dynamic data , how should i check that my is data is cross section-ally independent ??

More Irfan Ullah's questions See All

Why the difference between degrees of nonclassicality of the input states is required for nonzero entanglement in the output state of a beam splitter?

By considering two single-mode Gaussian states at the input of a beam splitter, it is seen that the entanglement of the output two-mode Gaussian state depends on the difference between the degrees...

22 January 2021 3,490 3 View

What are the (extrinsic) factors that influence the citation rate of a research article?

Dear RG members, Excluding the (intrinsic) factors such as quality and content of an article, what are the extrinsic factors/predicors that influence the citation rate of a research article? Is...

07 January 2021 3,410 3 View

Hi Everyone. I want to conduct DEMATEL analysis for my survey. Everything is in line except the MAXIMUM MEAN DE-ENTROPY (MMDE) ALGORITHM. Need help ?

I can't find any manual or procedure on how to conduct the MMDE process. It looks like most of the literature has copy-pasted the stuff without any method of how to do to it. Any practical book,...

07 January 2021 1,804 2 View

Does anyone have experience in infecting suspension cells (like THP-1 or K562 etc) by retrovirus?

I am trying to make stably expressing cell line of my gene of interest in Suspension cell line using retrovirus but i don't have recommended protocol. I have searched literature but mostly they...

14 December 2020 8,274 3 View

Hello I have a question about solar cells (perovskite solar cells) modeling in COMSOL?

I have done all optical simulations in RF module, now how can i find generation rate of electrons and holes, secondly how can i use these generation rate in semiconductor module to find further...

11 December 2020 6,652 3 View

Can a mathematical model be added to a paper on bean genetic and diseases manuscript?

10 December 2020 2,300 14 View

Straight chain or Ring peptide for inhibiting a homo-dimer of a 20 KDa secretory protein?

I am designing a small peptide to inhibit a homo-dimer of a small secretory protein (about 20 KDa). I need suggestions on, which option would be better? a straight-chain peptide or a ring-shaped...

03 December 2020 4,145 5 View

Should I take sample from surface or subsurface for soil analysis?

I am currently doing my final year project on Geochemical analysis of peat samples. I will be looking at parameters such as major and trace elements plus anions and cations. Should i take samples...

27 November 2020 6,668 18 View

Is the Lambert Academic Publishing reliable for publishing a book?

28 October 2020 1,361 5 View

Could someone share the Sliding Mode Control's Book?

Hello Everyone! Hope you all doing well. I want to study the sliding mode control for controlling UAV Quadrotor. I shall be very grateful if someone share the best and easy to understand book....

21 October 2020 4,383 4 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

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

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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

Does anyone know an alternative product for cardiac Troponin T antibody for Immunofluorescence (Thermo # MA512960)?

We have been using Thermo Fisher anti-cardiac Troponin T antibody for immunofluorescence staining in FFPE mouse heart sections but it was recently discontinued. The literature shows it to be the...

01 March 2021 4,937 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

How to assign different material properties to each element in Abaqus ?

Hello, I am writing a python script to generate my model and write the input file. The problem is I have 1000 elements in my mesh and I want to assign different material properties to each...

01 March 2021 9,511 3 View

Taha Zaghdoudi

You can test that via CDs pesaran test in stata __ xtcds, pesaran abs as a post command of fixed effects estimation xtreg.

Ali Abbas

Dear Zia ur Rehman.

I agree with Taha Zaghoudi

For further clarification, I would suggest you to go through with it and find your answer.

Good luck.

Thesis The European union's technological and economic growth: A st...

Ehsan Khalili

I agree with two first comments.

if you use Stata, have a look at the attachment.