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Is there anyway of extracting the points of a PCA plot and re-drawing the plot in excel? I use prcomp() to compute the PCA and use autoplot() to plot it, easy peasy. I've tried pca$scores to try...
11 November 2017 937 4 View
Hi. I have more than 20 variables in the OLS regression model and would like to find the best model. By the best I assume it should have the highest possible adjusted R-squared, R-squared...
10 November 2017 1,475 4 View
Hello I've collected socio-economic data using ODK that I'm analyzing using R software. I have a multiple choice question with several modalities that I would like to have the frequency of each...
07 November 2017 4,103 14 View
I'm trying to feed a corpus into a DocumentTermMatrix (dtm) to analyze, but I noticed that dtm doesn't keep all terms (for example, I have terms with parenthesis and semicolons that I would like...
03 November 2017 6,298 1 View
I'm collecting selected weather parameters such as air temperature, wind speed, RH etc to study the development of UHI phenomenon in Kuala Lumpur for few years period. It's very difficult to...
30 October 2017 926 3 View
I was searching for r packages for designing sample location for different sampling approaches like point, line, or plot sampling specially in forestry topic. I found fiesta and imfor, but...
27 October 2017 961 4 View
I have to show data about shared uses of medicinal plants in different ethnic groups. I wonder if circular plots could be an option for this kind of data or not. And if yes, how to arrange...
24 October 2017 2,428 6 View
In using mixture models with response surface methodology in determining the optimum conditions for a process, statisticians use weighed variables with the trend for maximizing, minimizing or to...
27 September 2017 2,891 2 View
I have some data and I want to illustrate some graph in R. I have installed "sm" package but when I want to draw the graph, I receive the following: could not find function "vioplot" Many thanks.
26 September 2017 1,705 6 View
I want to test the Mistcherlich Model to data I get from papers. I have data of agronomic yield and an environmental variable (naturally I have the standard deviation and the number of repetition)...
11 September 2017 7,932 3 View
The R function centralityPlot plots by default variables in alphabetical order, but I am considering to sort them according to their domain. I already used the label option assigning...
08 September 2017 8,565 2 View
Hi all, Could someone give me some advice on how to do spatial analysis in R? Here’s the scenario: I want to map disease prevalence in a village, specifically the seroprevalance in 4-17 year...
28 July 2017 8,839 3 View
Hi! We are trying to estimate body mass (W) heritability and cross-sex genetic correlation using MCMCglmm. Our data matrix consists of three columns: ID, sex, and W. Body mass data is NOT...
26 July 2017 6,938 1 View
Good morning, is there any way to check for multivariate outliers when data is not only composed by continuous variables? My dataset includes categorical variables (with 2 and 3 levels) and...
26 July 2017 3,372 9 View
install.packages("ncdf4")install.packages("raster")install.packages("sp")require(ncdf4)require(raster)require(sp)setwd("C:\\Users\\csil3873\\Downloads\\")dir() file
26 July 2017 906 9 View
I am using R-studio. I want to generate some random number with a parameter of geometric mean value 5.1 and geomatric standard deviation of 1.2. What exjact code i should use to do that? I am...
12 July 2017 8,555 2 View
I collected benthic samples from 12 stations (3 samples per station across 4 locations) across mudflats from one estuary, in autumn & the following spring, totalling 72 samples. In addition, I...
11 July 2017 9,640 2 View
I am looking for an online R tutorial to deal with panel data with interaction and error terms. Can anyone help me out here? Thanks
05 July 2017 3,920 4 View
I have a correlation matrix of loans of dimension 6k * 6k. I need to do clustering based on this correlation matrix using unsupervised clustering technique. Can anyone please tell me which...
03 July 2017 7,921 3 View
I am working with ENMeval package (Muscarella et al., 2014) in R to develope Species Distribution Models. This package developes SDM in raw Maxent output, but I need logistic or probability maps...
28 June 2017 8,235 5 View
I’m working on quite small sample of municipalities. I’m investigating impact of various variables on probability of being reelected in mayor elections in Poland. Thus, dependent variable is...
27 June 2017 3,019 3 View
I was conducting a meta-analysis of single proportions(i.e. without a control group) using the metafor package. When I performed a classic fail-safe N, I noticed that the result (the number of...
26 June 2017 4,203 3 View
Hello all, I want to run a PGLS analysis. I have a phylogeny with branch lengths, but I want to run the PGLS analysis for a slightly smaller subset of taxa than the ones contained in the...
26 June 2017 7,636 0 View
I calculated a spectrum of 2 to 7 latent classes from data on behaviour, using poLCA in R. The model is based on 14 ordinal variables with 20 grades each. The number of respondents is...
20 June 2017 9,999 3 View