Random sampling from a dataset, preserving original probability distribution, with R sample function?

Hi everyone, I have a question concerning random sampling from a dataset. I would like to extract random samples from a dataset. I thought the "sample" function in R could be a good and simple...

10 February 2020 8,061 2 View

Random sampling from a dataset, preserving original probability distribution, with R sample function?

Hi everyone, I have a question concerning random sampling from a dataset. I would like to extract random samples from a dataset. I thought the "sample" function in R could be a good and simple...

01 February 2020 2,935 2 View

How to extract data from a location (using longitude & latitude) with ncdf4 library in R?

Hi everyone, I am trying to extract the climatic data from a dataset (spain02) for a specific location (with latitude and longitude coordinates) using the ncdf4 library from R. I am looking for...

09 October 2018 3,869 9 View

What would be the apical meristem or shoot tip in a plant with basal rosette?

06 June 2017 7,481 3 View

Can anyone help with normalization and transformation using CLC bio?

Hi, I am using CLC bio to analyze RNAseq data. I already did the RNAseq analysis and now I am working on the statistical analysis, but I do not know whether I should normalize or transform my data...

01 September 2014 8,830 7 View

Best software for graphics.

What is the best software to realize graphics for publications?

03 April 2013 8,150 10 View

Recommendations of fat intake in acyclic or team sports?

Someone knows what is the recommendation of fat intake in acyclic or team sports? Any references?

31 December 2012 1,871 4 View

Can anybody teach me how to make a lin's concordance and ROC curve in SPSS?

I am comparing 5 methods to analyze body fat mass, and I need look at the concordance. Can anyone explain how to make Lin's concordance and ROC curve in SPPS, or in other software?

13 December 2012 5,454 10 View

Can anybody teach me how to make a lin's concordance and ROC curve in SPSS?

I am comparing 5 methods to analyze body fat mass, and I need look at the concordance. Can anyone explain how to make Lin's concordance and ROC curve in SPPS, or in other software?

11 December 2012 5,861 11 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 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

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

The procedure compute?

02 March 2021 5,204 3 View

Does anyone know what a '.' means in SPSS?

Hi everyone! I was wondering if anyone would be so kind as to help me with regards to my data set on SPSS! I was checking for multivariate outliers via the standardised residuals ('Linear...

02 March 2021 7,910 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View