Can anyone help me the analyses of variance with SAS or R ?

More Aitak Sadeghi's questions See All

How can I convert permeability unit from barrer to m^2 for using COMSOL MultiPhysics?

I am looking for gas permeability of PDMS for simulation in COMSOL MultiPhysics and using creeping flow , fluid and matrix properties. The permeability unit in COMSOL is m^2 whereas I have the...

08 February 2021 4,305 2 View

How to convert Shamsi dates into Christian dates in SPSS?

Hi I have a database in which there are several dates indexed as strings and in Shamsi format. I need them as dates (not strings) and prefer them to be Christian. I have tried "Date and Time...

14 December 2020 2,798 3 View

How to formulate or simulate FSI and 6DOF together?

hi every one I want to know, is there any way to formulate FSI and 6 DOF or simulate them together in CFD Softwares? for example FSI of a ship with 6 DOF in regular waves or irregular waves? thanks

01 November 2020 6,197 3 View

Protein structure prediction software; user-friendly and reliable one?

Hi Predicting 3D structure of novel synthesized peptides and proteins is an important step in designing new proteins like enzymes and receptors. Can anyone suggest protein 3D structure prediction...

03 May 2020 2,604 16 View

How to simulate the Solid-Fluid interaction for a vessel ?

Hi i have problem with interaction between Solid-Fluid interaction for a vessel. in commercial software for simulating Solid and Fluid, there isn't any option to simulate Fluid-Solid interaction...

21 April 2020 7,267 3 View

How to overlap Magneto optical trap with nanofiber trap while the extra magnetic field eliminated?

I want to overlap the Cs atom with a nanofiber. I am using two cameras but it is still not clear. So I added an external coil to AH coils to move them flexibly. Now the issue is how to minimize...

13 January 2020 3,015 2 View

Does glycidol react with OH or carboxylic group in citric acid? which one has higher tendency to react with epoxide ring?

As you know, citric acid has three carboxylic acids with pka: 3.13, 4.76, and 6.4 as well as a hydroxyl group with pka 11.6 to 14.5 (depending on the reference). On the other hand, OH has a potent...

10 November 2019 9,900 2 View

Is it important to have exactly the same number of participants in the two groups if you used matched pairing for assignment?

Dear sirs/madams, Hi. I have a question the answer to which I couldn't find. I was wondering if you could help me. I used random matching (matched paires) based on one variable to assign 132...

05 June 2019 9,904 7 View

What is the best way to analyse aquatic extraction of one plant for first time?

i want to analyse my plant extraction for first time and measure components of my extraction. i extracted my plant with methanol and then solve it in water.

27 February 2019 6,068 7 View

What are the proven methods for determining the minimum population size for an experiment?

There are some rule of thumb like squared of feature numbers. However, I am interested in a proven method. Please specify the reference paper as well. I also followed similar following question...

11 January 2019 5,739 3 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

Interpretation of Goodman - Kruskal Gamma squared?

Dear colleages, Eta squared is dominantly used in reflecting the explaining power the same manner as a squared partial correlation coefficient (R2p ) from multiple linear regression: as the...

22 February 2021 7,801 3 View

How is the variance for an image exactly computed to test the uniformness of its histogram?

I am trying to compute the variance of a plain and cipher grayscale LENA image... I found in a paper that variance value is equal to 630780 for a plain Lena image while if I calculate I find it...

28 January 2021 8,036 5 View

Invoke SPSS syntax from SAS macro without python?

I am working mainly with SAS and processed my data all steps in SAS. A user needed the data files in SPSS, but at the same time need all variable attributes to be included (formats, missing, var...

27 January 2021 4,487 3 View

Can you use the Postal Code Conversion File with STATA?

Hello, I am trying to learn how to use the PCCF for my dissertation research. However, all I can find are directions on how to use the PCCF with SAS. I'm wondering if it is possible to use the...

27 January 2021 5,770 4 View

Reliability of the model created by RSM (Response Surface Methodology)?

When you create a model with RSM, even if the R2 value is large and the result of the analysis of variance is significant, if you look at the individual explanatory variables, if there are many...

22 January 2021 454 1 View

How To Check Time-Series Stationarity in R ?

When validating a time series, one of the first things to check before building an ARIMA model is to verify that the series is stationary. That is, it must be determined that the time series is...

18 January 2021 700 11 View

How do you multiple impute item scores and perform a linear regression on factor scores?

I am developing a questionnaire and first performing an exploratory factor analysis. After I have the final factor structure, I plan on regressing the factor scores on some demographic covariates....

18 January 2021 883 8 View

Does anyone know how to fix the "A sample of parameter values was inadmissible"-error in SPSS AMOS when imputing factors?

Hi all, I'm trying to impute factors after testing my model for CMV and therefore included a common latent factor. Unfortunately, I always get the same error: "A sample of parameter values was...

02 January 2021 6,647 5 View

MANOVA with 1 independent (predictor) variable and multiple DVs: how do I interpret and report the results?

The aim of my thesis is to see whether anxiety score can predict sleep quality and dream content. So for this, there is one continuous variable that I want to use as a predictor on multiple...

27 December 2020 790 8 View