Hamid Ghorbani

6 Questions 51 Answers 0 Followers

Questions related from Hamid Ghorbani

Is it really a MUST to transform compositional data by CLR or ILR transformations before applying statistical methods?

My question is about the papers those take logarithm to reduce the skewness of the compositional data like elements concentration and use common statistical methods to analyze the data in log...

09 November 2024 7,252 3 View

Statistical criteria for assesing correctness of pre selected questions desinged to measure certain research issue in questionnaire data analysis?

In questionnaire data analysis, if one as a statistician received data after designing and filling the questionnaire by respondents, and encounters pre-determined groups of questions that are...

05 May 2022 7,770 1 View

Correctness of averaing a group of questionnaire reponds measured through 5 point Likert scale and analyse the outcome as countionous variable?

In questionnaire analysis, for example, four aspects of the research issue each are measured by asking the opinion of about 45 respondents with a series of related questions have 5 point Likert...

04 May 2022 8,874 3 View

Is calculated factor scores in robCompositions R package, correct?

Please have a look at the factor scores returned from robCompositions package in this example: data(expenditures) x

24 April 2022 8,390 1 View

What is the suitable experimental design and how to implemante it in R or SPSS?

Hello researchers, I have a question about the type of experimental design to describe my data and details of how to implement it using R or SPSS. I have three types of roses, three types of...

12 April 2022 2,658 5 View

Is it really a MUST to transform compositional data by CLR or ILR transformations before applying statistical methods?

My question is about the papers those take logarithm to reduce the skewness of the compositional data like elements concentration and use common statistical methods to analyze the data in log...

01 January 1970 8,407 1 View