Hello fellow researcher .. What is the meaning of your name?

I would like to create a small guide containing the meanings of the names .. Thanks to everyone who cooperates with me in achieving it.

03 March 2021 5,266 4 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Which is better medicine or food in obesity?

Preference in terms of the scientific aspect

28 February 2021 796 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Treating Intermediate Variable in Linear Regression Analysis in SPSS?

While performing the Linear regression analysis in SPSS version 26.0.0. my intermediate/mediation variable goes to the excluded section. Please share your valuable suggestion "How to restrain the...

25 February 2021 4,591 5 View

How to find natural frequency of a bridge from vehicle induced vibrations?

i have frequencies of bridge that are effected by mass of vehicle. the problem is when any vehicle pass the bridge it would add the its mass to the bridge mass ultimately mass of the bridge will...

22 February 2021 10,004 3 View

Purification of proteins from baculovirus-infected insect cells?

18 February 2021 6,665 6 View

Small displacement measurement in vacuum?

Hello, I have a question. there is a circular thin foil which vibrates in vacuum, the foil restricted and moves up and down. it is like a diaphragm between two pipes . both sides are in vacuum but...

18 February 2021 8,075 3 View

Pile-Raft connection?

Greetings, I was wondering what is the optimal way to connect the reinforcement at the top of the pile (the part that connects to the raft foundation): -The pile bars are left straight and...

16 February 2021 2,007 3 View

Pre-conditions for panel cointegration analysis?

while conduction panel data analysis, the outcome of unit root tests says that some of the variables are already stationary at level while other are non-stationary at level, but after first...

05 December 2020 7,763 6 View

How to conduct CUSUM and CUSUMsq test after the inclusion of an exogenous dummy variable in my ARDL model?

Hi all, I have been struggling a great deal with this matter and as such I hope you could provide me with answer. I have added a dummy variable to my ARDL model to improve its stability (Eviews)....

01 December 2020 1,071 5 View

If different variables are stationary at different levels I(0), I(1), and I(2), and are cointegrated, can I run my data by using VECM ?

My data are consisted of 3 exogenous variables (TFIN, SR, and INF), and 1 endogenous variable (GDP). TFIN and INF are stationary at I(0), GDP is stationary at I(1), and SR is stationary at I(2). I...

22 November 2020 8,435 9 View

What is more important for a proper cointegration analysis: taking into account structural breaks or having sufficient observations?

To clarify, I have several time series of roughly 30 years with monthly datapoints. Given the fact that the time series are quite volatile, I expected more than 2 structural breaks and conducted...

05 October 2020 3,221 3 View

Is it possible (panel or time series) cointegration including one lagged variable?

Dear all, I am certain that one of the variables in my vector can affect the rest only if it is lagged. For example, lets imagine an agriculture product which is planted in a year and harvest in...

10 September 2020 1,078 4 View

Does DOLS deal with cross sectional dependence?

Hello researchcers Can you help me to understand that the DOLS model is suitable for cross sectional dependence panel data or not. The sample of my research is CSD through individuals...

28 August 2020 2,964 5 View

Hi all, can OLS be used on single equation when it has two (2) cointegrating vectors?

Let suppose an equation Yt = a + b1Xt + b2Zt + b3Ft + e where Y is the dependent variable and X, Z and F are independent variable. If johansan cointegration shows 2 cointegrating vectors then...

23 August 2020 3,642 12 View

How to deal a random walk model with a drift?

I'm regressing households' spending (PCE) on disposable income (PDI) between 1980 and 2018 for the U.S economy. I noticed that the coefficient of PDI is higher than 1. I first think that coeff. of...

04 June 2020 9,615 1 View

Which model do I use for long-term forecasts of multiple cointegrated variables?

I am regression yearly electricity consumption on GDP and population. I found that both independent variables are cointegrated with electricity consumption (with Granger causality running from...

22 March 2020 3,113 2 View

Is it possible to get insignificant long-run relationship in cointegrated series?

I'm estimating an ECM for panel data and I found X and Y are cointegrated (from various panel cointegration tests and the significant error correction coefficient in ECM). However, when estimating...

23 January 2020 4,381 3 View