R, SAS, SPSS, STATA, Statistica... | Contact experts in Statistical Software to get answers
2,401 views 386 posts
Questions related to Statistical Software
Suppose we have N points in the k-dimensional space [i.e. each a k-tuple of the form x=(x1,x2,...,xk)]. We need to find the nonlinear least-square surface F (ex. polynomial) which minimizes the...
09 September 2015 4,868 6 View
I have 30 samples for three sites. the environmental variables were measured for each sample such as Depth, pH... etc. I want to observe the relationship between the organisms and the...
09 September 2015 6,640 2 View
Hello all, I have a matrix of gene-expression data from 50 samples whose rows are the probes and whose columns are the samples. There is an additional column consisting of the Entrez gene IDs for...
09 September 2015 6,606 8 View
where is the wrong when I use multiroot in below to find the roots? library(rootSolve) fun
08 August 2015 1,640 5 View
Actually i am working with forest plant species for genetic diversity detection with SSR marker. I have some difficulties during the feeding and interpretation of my data with the help of software...
08 August 2015 2,431 4 View
Has anyone used Gibbs Sampling and Random Forest Statistical software? If yes please let me know the pros and cons?
08 August 2015 5,903 3 View
I'm trying to calculate the PCA (Principal Component Analysis) for my data using Minitab 17 statistical software, and when I tried to calculate the PCA for it, this error message (* ERROR * The...
12 July 2015 993 5 View
07 July 2015 2,775 6 View
statistical software
07 July 2015 1,670 6 View
Major issue in supervised classifier is training set dependency. Can I add the test tuples which is classified based on semantic template and make my training set as dynamic?
30 June 2015 3,292 2 View
I'm working in a simulation-optimization problem, for which I'm using Matlab. The simulation consists in solving a set of ODE's, which in turn gives information to calculate an objective function...
25 June 2015 5,716 1 View
06 June 2015 4,982 1 View
06 June 2015 6,477 3 View
I know that crosscorr function normalizes the correlation and gives us correlation with respect to 1. Where as the xcorr function of matlab gives unnormalized values. But why I am not able to see...
06 June 2015 2,559 3 View
I am currently using a novel composite resin in order to grow 24 hour biofilms of Streptococcus mutans. In order to see how the composite resin affects biofilm growth I am staining the specimens...
31 May 2015 1,775 6 View
I am using e-prime extensions for tobii and I am looking for a software (or accessible matlab or R code) that can take the raw x, y gaze coordinates from the .gazedata file and determine fixations.
27 May 2015 3,271 2 View
For our course in psychological assessment we have to adapt a scale for Bulgaria. My colleagues and I chose the Oxford happiness questionnaire and we have to perform this hierarchical factor...
20 May 2015 2,794 29 View
I have panel data of companies from various industries for 10 years. However, my data set contain many outliers. One of the way that I know to remove them is using bloxspot to identify outliers...
20 May 2015 3,260 5 View
05 May 2015 5,525 7 View
05 May 2015 2,512 3 View
I have a 2 (valence: pos vs neg) x 4 (stimulus type) design. Both variables were assessed within each subject. Additionally, I have a metric trait variable. A simple way would be to do a median...
05 May 2015 9,555 7 View
And why? On graphics, functions, operations as inverse matrices, product of matrices, moments calculus, etc.
05 May 2015 7,353 2 View
Dependent variable: Scale Independent variables: ordinal, nominal and scale
27 April 2015 3,063 3 View
like in stata how one may replace for missin values ussually given by a (.) into something like 0
25 April 2015 1,459 13 View