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Questions related to Statistical Modeling
I have 5000 sample data recorded from real experiments. From that data how can we know which statistical model does it follow? That means, if we have given sample data, is it possible to develop...
10 October 2016 2,562 4 View
Dear all, I have to use two different strategies to generate background points for two types of models (MaxEnt versus other models such as RF, GLM) for reducing sampling bias. Since I couldn’t...
10 October 2016 6,167 3 View
In the case of imbalanced classified data, oversampling is a standard technique to avoid the learner to be biased toward the most represented class. In the case of cross-validation, we have two...
10 October 2016 1,392 6 View
Hi, for a validation study of a new IQ test I have data from people taking two test batteries, say battery A and battery B. The subtests in terms of test type are the same (the usual number...
09 September 2016 2,732 6 View
Pls discuss, stratified randomization and excel method leads to accumulation of group having all the less body weight animals
08 August 2016 7,862 5 View
In many times, breeders tend to evaluate large pool of germplasm. From a few hundreds to thousands in network research models. Is ABD the best design in such scenario. Or We need improvements? Or...
08 August 2016 9,051 4 View
Dear all, I made a EBSP analysis in BEAST 2.4. The analysis was good but I can not make the chart from ebsp.log file as described in the tutorial. I tried to make the graph in R studio (windows)...
08 August 2016 2,738 3 View
I have inputted my occupancy data which generated an AIC of 764.46. I then inputted my site co-variate data and ran the model, but it did not change at all. I suspect that it is not reading my...
08 August 2016 6,485 4 View
Has anyone used an ordinal logistic regression model to analyse factors associated with severity of periodontitis using the CDC-AAP Case Definition, using 4 categories: Healthy, mild, moderate and...
07 July 2016 8,735 2 View
Dear all. How to calculate Scalar invariance in AMOS without estimate means and intercepts? Thanks
07 July 2016 8,005 5 View
In our project analysis,each subject in the cohort was assessed at two different time points with 5 years apart on whether or not he/she develops diabetes(this is our outcome variable, yes/no) ,...
06 June 2016 6,022 6 View
I want to compare the evidence for three models using AIC criteria. I have three models that I want to compare. Two models were computed using non-linear least squares. One model was computed...
06 June 2016 9,505 8 View
I'm looking for any data on Population Statistics or Modelling for the past periods to compare them with our results extracted from Wikipedia biographical pages (see attached links).
06 June 2016 7,618 3 View
I have recently received the following comments on my manuscript by a reviewer but could not comprehend it properly. I am alien to the concept of Common Method Bias. "Recent editorial work has...
06 June 2016 593 28 View
Hello everyone, I apologize for maybe banal question but I am confused. I am trying to write up results of GEE analysis I performed in R (geeglm). I am viewing various articles and I am puzzled....
06 June 2016 7,889 6 View
Every paper I read about statistical modelling of video data frame size, packet level, investigates each frame type separately. That leads to assigning different statistical models for each frame...
06 June 2016 5,257 2 View
Dear all I've had a painful afternoon trying to get R to run an LME analysis using the same scripts/processes that I've successfully employed previously. No joy this time. When examining the...
06 June 2016 1,870 7 View
Hi, I'm currently looking into survival analysis regression models and can't quite get my head around the following: Say I want to model time to occurrence of a cardiovascular event and use age...
06 June 2016 613 5 View
Which is the best mobile network simulator QualNet/GloMoSim/OMNeT++/OPNET ?
25 May 2016 7,817 10 View
Dear list, I am running a GLM (family="binomial") without random effects using both glm and glmmadmb. Summaries are almost identical, however when I used the predict function as...
05 May 2016 8,648 6 View
Kriging model in shape optimization of high-speed rail. I know what is the use of Kriging model, just that I don't understand how to use it. Many thanks for all the help given.
05 May 2016 2,318 4 View
I used RF and SGB(stochastic gradient boosting) statistical models for model prediction but I am getting only variable importance/Relative influence/InMSE list. How to get proper model equation...
05 May 2016 6,238 2 View
How to perform correlation analysis?
04 April 2016 9,423 5 View
I am investigating how environmental conditions influence reproductive trade-offs, especially in terms of residual covariance (allocation trade-offs). Instead of fitting a standard univariate...
04 April 2016 1,881 5 View