Contact experts in R Statistical Package to get answers
2,705 views 693 posts
Questions related to R Statistical Package
Hey there,I want to analyse the diversity of two populations with SSR markers.I managed to calculate the FST value with the hierfstat package. But now I want to test whether FST is significant. I...
06 November 2016 3,095 3 View
I was wondering if there was a package that helps with RAPD data, specifically population genetics. I heard about "poppr" but I am not sure if it works for this type of marker, it says it works...
03 November 2016 9,563 3 View
I want to use linear mixed effect model analysis in R (package lme4). I have three fixed factor and one random factor. So, how can I achieve coefficient of random factor and R2 value of the model?...
03 November 2016 2,460 9 View
I wrote these R codes which to help me compute some statistical properties of the probability distribution I am working on. Please, find the R codes...
30 October 2016 4,055 3 View
I'm using Tax4Fun in R to look for potential gene families for my 16S data. When the functional profiling (fctProfiling) is set as default, TRUE, I get a whole list of enzyme relative abundances...
28 October 2016 4,481 1 View
Is there a way to restrict ltt.plot to a clade of a large phylogeny created in Beast?
28 October 2016 6,699 2 View
Hi, Does anyone know of an R package for Sankey diagram that enables you to manipulate the y-position of the links/Edges?
26 October 2016 6,909 1 View
There is a special case of the Schnabel model, for 'enclosed populations' where there is no migration or recruitment. Does anyone now if this model is included in any statistical software, ideally...
21 October 2016 2,872 3 View
I've collected NIR spectra and need to calculate the shifts in the position of the negative peaks shown in the figure. But this peak is skewed, so I guess I need to fit a skewed normal...
20 October 2016 4,574 3 View
I'd like to know how to analyse data by using R. I attached a sample file (csv). I made this csv file with data from short period but I have much longer data so I'd like to know how to analyse. I...
19 October 2016 9,461 4 View
Hi All, I performed my experiments using RSM. My R-square, adj R-square and pred-R-square are 0.93, 0.91 & 0.88 respectively which shows model is good fit. But my lack of fit is found to be...
17 October 2016 4,396 1 View
I'm trying to use a discrete variable to build a map using ggmap, but I would like to convert the variable into contínuos to use a range of values. Could anyone help me with this issue? Thank you...
07 October 2016 5,554 3 View
Now I have 10 years data of species abundance, I try to test community composition response to treatment. Whether can add the year as covariate factor in RDA. As following formula: RDA=...
10 September 2016 3,328 1 View
Can I someone provide a code to open GEO file in R?
06 September 2016 1,571 2 View
Prediction capability of Species Distribution Models are generally measured through ‘Area Under Curve (AUC)’ using training data sets. I have developed four distribution models of my study...
03 September 2016 7,701 7 View
Hello, Does anyone knows how to work with the sentinel-2 .jp2 files in R? The earthexplorer has .jp2 files for sentinel-2 and I'm having some trouble in simply open it in R (I'm using R Studio in...
30 August 2016 9,320 18 View
Things seem to be fine until line 28, when I attempt to actually call the randomForest method. I'm new to R and am still getting used to the language.The code is listed...
22 May 2016 2,824 3 View
While you see both these with respect to cancer screening, I wanted to know the difference between the two to compare between interventions and survival. Consider two groups A and B. Group A:...
20 May 2016 547 3 View
Hi all, I'm attempting to model habitat selection by bandicoots using spatial environmental variables, with the aim to predict habitat use across a landscape. Using variograms, I've identified...
03 April 2016 6,256 2 View
Hello, I am fitting a series of phylogenetic generalized least squares (PGLS) models in R, using the gls function within the nlme package. Rather than use the pgls function in caper, I am...
17 March 2016 4,238 2 View
I find that STATegRa implements O2PLS and that plspm implements PLS (path modeling). I am interested in the attached application of OnPLS.
07 March 2016 2,543 2 View
Hi.. I am working with plant insect interactions where I used insect age and time after infestation as factors for studying the plant response .....can anyone please suggest me the best...
23 February 2016 3,177 4 View
Specifically, if I have the US Census place layer and I have selected a set of places, I need the distance to the nearest selected place for all places.
17 February 2016 8,806 4 View
I have a dataset contains hourly PM10 concentrations for 90 days of 83 sites. That means I have total (90*24) set hourly data each contains 83 observations. I want plot semi-variogram for every...
02 February 2016 3,000 5 View