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Hi, I am trying to import an adjacency matrix (2927x2927) in Stata which I created in R based on a shp file. However, when I arrive to the step: "spmat import SPWMat using Sus_2017_FINAL_2.csv,...
24 March 2017 6,110 1 View
I think my question speaks for itself. It may, however, consist of three parts:1) Can we consider a likert scale as count data?Based on my search so far, I would say we can probably not consider...
23 March 2017 9,393 3 View
I have constructed several models in R and used a model selection process to select the most appropriate model based on AIC values. However, I am wanting to use AICc for model selection, not AIC....
20 March 2017 5,124 5 View
Hi! I'm performing a PCA in R Studio for behavioral data and I note in many tutorials a plot (for variables or individuals) which displays cos2, according to the tutorials, cos2 is "the quality of...
16 March 2017 6,747 4 View
I have successfully imputed missing data in my data set but I am struggling to follow VanGinkel & Kroonenberg's instructions for what to do next. Does anyone know is there an easy way to do...
13 March 2017 4,922 3 View
Thinking about online and MOOC-type certificates for R programming and data analysis, are there any that are recognized and respected by potential graduate schools and employers? I guess if people...
12 March 2017 8,189 3 View
Hello everyone, I have a 16S rRNA dataset of the gut microbiome of 11 humans, who were given two different dietary interventions. For beta diversity analysis I did ANOSIM of the Bray Curtis...
06 March 2017 8,926 2 View
I have a dataset of X axis =197 compounds, Y = 780 descriptors in excel?
02 March 2017 6,115 6 View
Are there any tools or R-codes for meta-analysis in ERGM (Exponential Random Graph Models )?
01 March 2017 5,015 1 View
I have 30 rasters layers which represent a value for 30 consecutive years. How to create a linear regression for each cell over the 30 layers and output the slope? I am assuming they represent...
24 February 2017 5,445 11 View
I see there is the lcmm (latent classes mixed models) package for R. What issues did you encounter?
23 February 2017 1,095 1 View
I would like to know (in a practical manner) how to calculate the bivariate (or cross) space-time K-function for clustering analysis between different types of events? Does anyone have a sample...
17 February 2017 7,136 2 View
Hello there, I would appreciate if you could provide some tips on how to use lsmeans to make interaction plots in R. Thanks alot
17 February 2017 5,958 11 View
I am doing the Repeat Measure ANOVA using a below mentioned model in R. But I am not understanding how to perform pair-wise multiple comparison. I have added one hypothetical data in the file...
12 February 2017 9,743 5 View
Hey Matlab users, if I have two series of data: a = [1 4 6 3 4 6 7 8]; b [34 56 34 56 79 23 48 28]; Then i can find the spearman and pearson correlation coefficient respectively as: [RHO,PVAL] =...
11 February 2017 3,587 10 View
I am trying to analyze GEO Data with Bioconductor R. I have imported the required packages and downloaded the dataset. But when i import simpleaffy using library function, I am getting the...
11 February 2017 2,961 0 View
Hi TS and R gurus, Is there any way to impliment Elliott–Rothenberg–Stock (ERS) with Hannan-Quinn lag selection criterion in R? Libraries like fUnitRoots and fSeries have commands...
08 February 2017 923 3 View
Dear Members of RG community, I try to calculate incremental variance explained by variables in multivariate multiple linear regression model, but I don't have Sum of squares parameters like...
04 February 2017 2,750 3 View
Running a Co-correspondence analysis (ter Braak, C. J. F., and A. P. Schaffers. 2004. Co-correspondence analysis: a new ordination method to relate two community compositions. Ecology 85:834–846.)...
25 January 2017 9,323 1 View
The manual explains how to input environmental variables ~(or factors) and interactions between them but does not explicity explain how to input geographical coordinates. Should I just input...
21 January 2017 5,460 1 View
Hi, I'm doing regression in prediction. But, i would like to get some advice on any package in R to do feature selection specifically using mutual information algorithm? Thank you in advance
16 January 2017 5,955 2 View
I have used a histogram as a density estimator and fitted a spline using R. My understanding is that the spline function gives a cubic spline interpolation, but I did not specify what method to...
16 January 2017 3,145 4 View
I explored different packages (such as mgcv, MCMCglmm, glmmADMB, etc) but they all have limitations. Either they don't allow for zero-inflated, zero-altered distributions or they don't allow...
15 January 2017 1,678 2 View
I want to model VARMA-GARCH of Mcaleer to study volatility transmission between oil and stock market index (bivariate). Is there any available programme in R or Eviews that I could use?
10 January 2017 7,902 3 View