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6 views

dr-roc software [closed]

im tryong to do a meta analysis for diagnostic testings as was done here: Physical examination tests of the shoulder: a systematic review with meta-analysis of individual tests E J Hegedus1, A ...
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0answers
19 views

NVivo IRR Test of Content Analysis Data: How do I interpret each row of Kappas?

I am currently working on a research project that involves content analysis of secondary published data (corporate sustainability reports) by U.S. companies. In order to capture the data, I and two ...
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0answers
23 views

Multiple imputation in different software packages

I'm a grad student and my mentor asked me to write up some multiple regressions that had already been run. The model has around a dozen predictor variables (some dichotomous, some continuous) and 1 ...
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0answers
17 views

how to predict mean and variance of a variable using GMM

I identified a set of variables that are related to a variable X. I want to verify empirically if those state variables can predict and capture the first and second ...
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0answers
39 views

What program to use for data presentation? [closed]

I need to plot few graphs for my dissertation, I would use GraphPad Prism however my 30 trial has expired and I cannot afford to buy it. R- sounds good but it is far too complicated and I, ...
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0answers
14 views

Stacked CRF implementation

I am looking for a library that can train a stacked conditional random field (CRF). I plan to use it for natural language processing purposes. Ideally, Python interface, works on Linux, and multi-...
2
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1answer
143 views

Fastest LSTM training in CPU-only (no-GPU) setting [closed]

Training more or less sophisticated RNNs (e.g. LSTM) takes ages in CPU-only setting. I've tried Lasagne-over-Theano, Keras-over-TF and torch-rnn implementations of character-level language models (...
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1answer
255 views

Which hardware for Machine Learning software? [closed]

I would like to build a desktop PC with Linux and use it mainly for machine learning research and related stuff. I am aware that there are software packages that use GPU "magic stuff" to train ...
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1answer
30 views

CRF implementation with Python API that allows a CRF model to be trained multithreadedly

I am looking for a conditional random field (CRF) implementation with a Python API that allows a CRF model to be trained multithreadedly. I currently use pyCRFsuite, which works great except that CRF ...
2
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1answer
57 views

Statistics Software Survey?

Does anyone know of research showing the different types of statistical software used? I'm looking to find out things like what percentage of people use SAS vs. Stata, R, or other packages. I'm be ...
2
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0answers
62 views

Convert latex mathematics equations directly to Python/Matlab Code? [closed]

I am wondering if there is any technique to convert latex mathematics equations directly to code, like Python(numpy,scipy), Matlab? Thanks! I have this problem since I find I sometimes make mistakes ...
3
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1answer
62 views

Where can I find tests that validate the output of popular statistical software? (e.g. R, SPSS, SAS)

This has been difficult to search on Google. I've looked on R's website as well. I assume there are test suites that validate that R, SPSS, SAS, et al are giving the right output for a given analysis? ...
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0answers
18 views

software reliability modeling

Software Reliability Modelling In a given sample data set of discrete software failure data, list of test cases are given and corresponding to that test case, what are the various software bugs ...
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0answers
40 views

Multiple metaregression

My name is Ashley. I'm working on the analyses for my dissertation which involves a meta-analysis of 4 predictors, 1 mediator, and one outcome. So far, I've calculated the meta-analytic correlation ...
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1answer
38 views

Analyzing website user search terms

I'm trying to group the popularity of various topics and categories on my website by looking at what my users are searching for. Working with a spreadsheet has proven extremely difficult. For example, ...
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2answers
56 views

practical problem when computing the probabilities of a normally distributed sample

I am trying to implement some paper, where I have an iterative scheme where I have to compute the probabilities from a univariate normal distribution as usual: The python code is: ...
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0answers
111 views

Numerical issues when using softmax function for probability values

I have a prediction function that outputs confidence values for a label in a classification task. The function outputs a vector $h_{\theta}(x) \in \mathbb{R}^L$. I have been trying to feed the output ...
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0answers
63 views

Julia set to replace R? [duplicate]

I'll consider myself a beginner R user, and browsing through the Web yesterday I read an article that said that Julia (new language) is set to replace R and SAS... Now my concern is wether to ...
3
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0answers
62 views

Is there a standard set of statistics to apply to benchmark data?

I'm writing a web application that takes benchmark data from our in-development video game. Here is a preview of one of the benchmarks: We intend to run and collect this data once per day or more. ...
3
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0answers
46 views

What significant problems/solutions have you experienced working with software engineers?

This question is probably at least applicable for those of you that work in a commercial setting. I am working in a rather general way on process improvements with regards to communicating (or not ...
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1answer
45 views

Is it possible to use entropy maximisation to get around collinearity in linear regression?

Say I have a linear regression problem with highly collinear predictors. Is it possible to use entropy maximisation rather than OLS to fit this model? If so, which (preferably Free) software ...
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3answers
48 views

Need time series visualization software with zoom [closed]

I am responsible for providing time series data to my co-workers monthly as line charts. The plots consist of two series: the actual data and a moving-average smoothed line. I am currently doing this ...
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0answers
41 views

In which languages can I estimate a VMA model?

In which languages/environments are there tools to estimate a VMA model of a given order? That is, given $q\in\mathbb{N}$ and a multivariate time series $y_t\in\mathbb{R}^d$, $t=1,\dots,T$, a function ...
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0answers
17 views

serial mediation with count data

It seems that, when you have count data, OLS-based mediation analysis models are not the right option to use. Poisson based strategies would be better. But I dont know about any software using poisson ...
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0answers
41 views

What software estimates hidden Markov models?

I am trying to estimate a hidden Markov model (HMM) for a research project. Suppose that I observe a sequence of emissions, but I do not know the sequence of states the model went through to generate ...
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1answer
137 views

Results from logit model using BIOGEME unexpected

I am using BIOGEME to estimate the discrete choice model (choice is made among four alternative routes). I am having hard time with modeling using BIOGEME, and expecting help on this. I have dataset ...
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0answers
63 views

Is eviews the only object oriented GUI based statistical package on the market?

I am trying to find a good and neat GUI statistical package for beginner, so far I have tried Stata, Gretl and Eviews. Only Eviews seem to have objects (models, graphics etc) stored together with ...
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2answers
61 views

Suggested software to compute seasonal arima model

My issue is really simple: I need to compute a seasonal arima model on traffic data (5 min frequency). The data exhibits daily seasonality (288 observations). This is causing me issues in computing ...
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0answers
149 views

Median-computation (“grouped median”). Problem with gmedian-computation in SPSS

In my basic-statistics course I wanted to delve deeper into the problem of the (grouped) median-computation and did some computations using SPSS. The protocol seems to indicate either a different ...
2
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1answer
51 views

How to process Binomial-Binomial data on SPSS for hypothesis testing?

There are 2 groups of 100 pregnant women: the first are malnourished and the second are well-nourished. A COHORT research is being done on them to determine if malnutrition is a risk factor for low ...
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1answer
40 views

Choose software tool for basic analysis [closed]

(I am pretty novice in data analysis) So, I have a set of elements (~105). All elements splitted for some classes of disjoint sets. Actually, there are two systems of sets. ...
2
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1answer
213 views

Constraints on the Coefficients of a Seasonal ARIMA Model (Possible Software Bug ITSM)

I am attempting to fit a seasonal ARIMA models using ITSM software. The following is the model. ARIMA$(1,1,0)\times(1,1,0)_{12}$: $\phi(B) \Phi(B^{12}) = (1-\phi B)(1-\Phi B^{12})=1-\Phi B^{12}-\phi_{...
3
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2answers
213 views

software library to compute KL divergence?

Are there any software libraries that compute KL divergences in closed form, that also give the derivatives of the KL divergence wrt the distributions' parameters? I'm using Julia, so it's ...
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0answers
112 views

What are the computer related prerequisite to do cool stuff with data? [closed]

I am a mathematician, who has recently gotten interested in statistics and machine learning, and feel that the biggest gap I have to fill is the technological one. What are the different ways that ...
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1answer
172 views

What statistical software does NOT provide for Classification and Regression models [closed]

Appended is a list (as far as I can tell) of statistical software that DOES provide for use of Classification and Regression Tree (CART) models. Some have the CART as a trivial case of things like ...
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1answer
167 views

What software could fit an alternative specific random intercept multinomial logit model?

I have a dataset of around 30,000 people where each chooses one of 4 items: A, B, C or D. People are nested within the 600 areas. I want to fit a multinomial logit model, where random intercepts are ...
0
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1answer
51 views

Better software for business forecasting? [duplicate]

I'd like to know what software provides better performance in business forecasting for thousands of SKU. Here the data is taken through databases. I know three alternatives: Autobox SAS Forecast ...
3
votes
2answers
107 views

Which multilevel software should I choose?

I have used packages in R thus far for MLM, but now I need to do MLM with complex survey data, and as I understand it, none of the MLM packages in R can cope with the complex weighting needed to ...
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0answers
209 views

Bimodal or Unimodal check using plot of Gaussian Kernel Density in R

I have a question on checking for bimodal distributions. When I try to use the Kernel based approach in R, ...
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0answers
40 views

How to analyze the effects of air pollution separately for the warm season and the cool season

In the model for main effect, we used the R code: ...
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0answers
18 views

Looking for a package to symbolically manipulate statistical expressions

I'm looking for a package that allows to manipulate statistical expressions symbolically, similar to how one can simplify, expand, factor, etc. with Matlab, Mathematica or SAGE. Using rules such as $...
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0answers
12 views

build systems for portable analyses

Does anyone have a good tool chain for packaging up, transferring, configuring and running an analysis? Bonus points if an analysis can be reproduced across platforms. There has been a lot of ...
0
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1answer
99 views

M statistic and software ProtoArray Prospector

I would like to reproduce the statistical result in this paper: http://www.ncbi.nlm.nih.gov/pubmed/24947363 They said "the M-statistic test in ProtoArray Prospector was applied to the normalized ...
27
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5answers
10k views

For plotting with R, should I learn ggplot2 or ggvis?

For plotting with R, should I learn ggplot2 or ggvis? I don't necessarily want to learn both if one of them is superior in any regard. Why R community keeps creating new packages with overlapping ...
1
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1answer
53 views

Recommended packages for numerical optimization with symbolic calculus

I'd like to train a model $\widehat{y}_i = F(x_i, \theta)$, by minimizing the sum of a loss function, $L(\widehat{y}_i, y_i, \theta)$. I'd like to input $\{x_i, y_i\}, F, L$ into a software package ...
1
vote
1answer
57 views

Missing data analysis software

Does any standard statistical software like R, SAS or SPSS have procedures or codes to analyze log-linear models for missing data in contingency tables using maximum likelihood estimation (or EM ...
0
votes
3answers
158 views

Why am I getting different results for my logistic regression when performed by different software?

My data is simple, my independant variable is continous from 0-1000 and the response is either a 1 or a 0. I'm performing a logistic regression to determine the 50% inflection point. When I put this ...
2
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0answers
130 views

Factor analysis with repeated measures

Multilevel factor analysis seems to be the technical term for factor analysis with repeated measures, judging from this abstract. To be precise, following Wikipedia's factor analysis notation, the ...
0
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0answers
34 views

Generating a dataset from mean, standard deviation, n and 95% CI

I have the output of a couple of Socprog models and I'd like to see if the results are statistically significant. Group A output: ...