How can i apply these functions in R?

More Usama Hadhoud's questions See All

What is the best way for ploting the powers of some univariate tests for normality in R?

like the plots shown page 2150 in the following article ( comparisons of various types of normality tests, Yab and Sim (2011)) but in R

11 December 2015 2,033 5 View

How can i calculate the critical values of a new test for normality with R through a monte carlo simulation for a vector of sample sizes?

some paper may be a guidline for this question..

11 December 2015 3,033 9 View

Steps of computing the power of ols test for normality against alternative distributions using matlab?

Using Monte Carlo simulation - ols test for normality (shalit 2012)

10 November 2015 5,487 7 View

I need the way to estimate the power of zhangwu1 and doornik hansen tests for normality in R found in the package PoweR?

testing for normality .. against any alternative distribution

10 November 2015 1,777 0 View

Plz, can any one help me to compute the following function in R ?

the function to apply in the word file and the data in text file

10 November 2015 9,647 0 View

What is the way for plotting the powers of different normality tests at different sample sizes in the same graph with R?

sw,JB,ols,zu

09 October 2015 7,459 0 View

What are the steps for graphing the power of different normality tests in the same qq plot using R language?

ols test - SW - D'agostino - LF

08 September 2015 3,566 0 View

How can i estimate the power of different normality tests using R language?

normality tests such as SW,JB, D'agostino, OLS, anderson darling and lilliefors.

08 September 2015 8,831 3 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

Which statistical test should we use?

N=6 Comparing pre and post test likert scale responses. Participants are mix of practicing & preservice teachers.

30 July 2024 7,233 4 View

Can you recommend provider Intermediate laboratory test for hydrocarbon, polyethylene & polypropylene?

Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...

25 July 2024 8,108 0 View

Is a reliability test necessary in my survey on translations?

Dear all, I gave 116 respondents 18 translated sentences and asked them to indicate their levels of acceptance of these translations on a five-point scale. Some translations result from strategies...

24 July 2024 8,245 5 View

How do I access .vcf files without an R statistical package?

I am currently working on a mendelian randomization study, and I have downloaded the datasets needed from the ieu opengwas project (mrcieu.ac.uk) in .vcf format. I do not have access to an R...

19 July 2024 2,342 5 View

Best statistical test for three groups and binary dependent variable ?

Hello everyone, I am currently working on a project where I aim to analyze color preferences in data visualizations across participants from three different countries. The dependent variable in...

19 July 2024 4,178 2 View

Use of NC or NTC to descibe negative control?

Hello, I would like to ask which is the best terminology to use for describing a negative control in an experiment (drug testing in-vitro, viral infection): NC (negative control) or NTC? Thank you...

18 July 2024 4,183 2 View

How to decide whether the refinement is correct or not, based on Rwp and Rexp factors by Fullprof?

One of the papers I read by Toby, where (title of the paper was "R factors in Rietveld analysis: How good is good enough?"), he tells us that to get good chi square value, you must have low Rwp,...

17 July 2024 9,668 4 View

Is there a name for this type of function?

Let n∈ℕ, where the function f:A⊆ℝ𝑛→ℝ, 𝐴 is Borel, and (A,d) is a completely seperable space. What is the name of the functions where the graph of f in any (n+1)-dimensional box of A×ℝ is...

17 July 2024 258 1 View

If I want to invent my own hypothesis testing method, where should I get started ?

15 July 2024 5,376 5 View

Jochen Wilhelm

The function to calculate a sum of the values in a vector x is is sum(x).

The function to calculate a mean of the values in x is is mean(x).

The function to claculate the squared values in x is x^2.

The function to calculate the absoute values in x is abs(x).

The standard algebraic operators (plus, minus, multiply, divide) are used as usual like x+y, x*y, etc.(where x and y are numeric vectors).

Usama Hadhoud

the first function in this file is the sample mean up to observation i which is not the overall mean of the sample data...