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1answer
29 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 ...
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1answer
30 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 ...
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3answers
104 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 ...
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0answers
41 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 ...
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0answers
22 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: ...
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2answers
32 views

Tool for generating correlated data sets

Does anyone know of a tool that I can use to generate a set of data with known correlations (and to put the icing on the cake - output this in json,csv,txt or some common format)? I am working on ...
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0answers
33 views

Find linear SVM feature weights using libsvm

I'm trying to use linear SVM to do some feature selection. I'm using libsvm, but I cannot figure out how to find feature weights. The model file created looks something like this: ...
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1answer
66 views

Does free SPSS 16 actually exist? [closed]

My mother heard about free SPSS 16 and gave me the task of finding a safe download of it. However, I can't find any site (except torrents) that actually have it available, they all seem to use SPSS 16 ...
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0answers
31 views

Power analysis in meta-analysis: Compute the maximum significance needed by an additional sample for meta-analysis to reach genome-wide significance

I have an association study analysis (GWAS) that does not reach genome-wide significance (max p-value < 10E-5), and there is a potential additional sample (so with known N and known effect size/SE ...
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1answer
54 views

Methods for testing a Bayesian method's software implementation

I'm a frequentist but have been exploring Bayesian techniques lately. One thing that bothers me is that I'm never completely sure that I've implemented them correctly. To be specific, I'm not talking ...
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2answers
46 views

Software for assisted decision tree construction

I have a large dataset based on several thousand surveys consisting of hundreds of questions each. I would like to form a classification tree semi-automatically as follows. Each node of the tree can ...
0
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1answer
109 views

What is a user-friendly and powerful software package for econometrics modeling?

I would be using such software to run multiple regressions using macroeconomics variables as independent variables to estimate other macroeconomic ones as single dependent variables. I need to be ...
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3answers
1k views

Best open source data visualization software to use with PowerPoint

What is the best open source data visualization software? I require the following: Can import data from Microsoft Excel (importing data from Oracle databases would be good too, but this is not ...
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0answers
27 views

Experiments for performance testing software

I am looking to run a series of performance tests for a software system across different configurations and determine which combination works best. The software system processes a number of files, ...
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0answers
16 views

Are there any benchmarks comparing Mahout with older software?

I want to know about Mahout's implementation of classification algorithms - how does its accuracy compare with other large data software? Anyone knows a reference on this? I know about this SAS ...
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0answers
274 views

Eviews vs R (Statistical Software)

Are there many features in Eviews that R misses? I have heard that especially when dealing with time series R is less extensive than Eviews. Is this true? Which of the two packages contains most ...
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2answers
449 views

What tools do Machine Learning experts use in the real world?

I'm currently taking a class covering some topics in machine learning. The class is taught in MATLAB using Liblinear so far. I was curious though what kind of tools people used in the real world to ...
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0answers
28 views

Symbolic matrix algebra software [closed]

just wondering is there a symbolic matrix algebra software like Mathematica that would solve complicated matrix expressions? Many thanks!
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1answer
164 views

How to do Simple Confirmatory Factory Analysis/SEM in R?

I have a data set consisting of 166 observations on 24 variables (a1, a2, a3, ...
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1answer
62 views

Freeware similar to MS Access for SQL-less data mining, querying and reporting [closed]

I am looking for freeware similar to MS Access for data mining, querying and reporting without really writing SQL (which I know very well but sometimes I feel lazy and would rather just drag and ...
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0answers
85 views

Functionality missing in the Python ecosystem but present in R's [closed]

The PyData ecosystem is growing quickly but it still has some important gaps in relation to what one can find in R. I believe some examples are survival analysis and to some extent grammars of ...
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0answers
52 views

Best statistical solution for text mining

I'd like to choose a statistical solution for the next years which can manage the major forms of text mining analysis, like mood detection. Is there a solution which stands out from others (R, SAS, ...
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1answer
157 views

Time Series Modeling with Lagged Variables

I have a dataset with columns that represent lagged values of predictors. To illustrate with a simple example, suppose we had car sales data for 3 years and the only predictors available were income ...
0
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1answer
217 views

What languages are commonly used in medical statistics?

A doctor friend has asked if I would teach them some basic programming, because they think it will be useful when they start to do research in the future. To give some background - they don't know ...
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1answer
665 views

Any online software to calculate pvalue of Fisher exact test?

I would like to do a one-sided Fisher´s exact test for an analysis. I have not any statistic software to obtain the pvalues (no SAS, no SPSS). The 2x2 tables are of this type: Do you know any online ...
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0answers
176 views

STATISTICA 12 for SEM data analysis [closed]

I'm a graduate student pursuing Ph.D. in Information Systems. My dissertation research involves using structural equation modeling (SEM-PLS) as a main data analysis method. After comparing various ...
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1answer
37 views

Gretl - How to extract sub-series?

I have series with 62 observations. How do I create a series with just the first 26 observations so that I can run an estimation on it? Sorry, really really beginner with gretl. I tried the square ...
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0answers
132 views

What is the best software for neural network analysis? [closed]

I need to fit a neural network to my data. I used SPSS 21, but I think it's model summary isn't sufficient. I also used R (nnet & neuralnet), it has a poor report and I can't find a good model ...
4
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3answers
297 views

Expert forecasting software evaluation

I have question on evaluating forecasting software with expert systems: Are there any objective assessment (not from the manufacturer) on expert forecasting software in the literature? I found two ...
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1answer
57 views

Managing the experiment loop - experiment organization tool

Here is loop of actions I do very often in my machine learning research: Run an experiment with a certain configuration (a certain classifier with certain settings, etc.). Look at the log file. Try ...
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3answers
557 views

Unequal sample sizes for two-way repeated measures

I have 3 different treatments with the observations of 6 different repetitions. However, all these different treatments (groups) have different numbers of patients. The first group has 26 patients, ...
0
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1answer
623 views

Will it be more useful to study Sage+Python or R in statistics? [duplicate]

What are the pros and cons between Sage and Python versus R if I would like to do statistics on Linux? I know that I can use R inside Sage but in what order should I study those programs?
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7answers
746 views

Software to produce confidence interval error bars from summary statistics without access to the original data

A bit like a box plot. I mean not necessarily the standard upper confidence interval, lower confidence interval, mean, and data range-showing box plots but I mean like a box plot with just the three ...
1
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1answer
124 views

Behavioural economics experiment - non parametric test

I wonder if somebody could help with my dissertation project. I am stuck with the analysis and tried to consult a few people but unfortunately they either have limited experience, knowledge or ...
1
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0answers
31 views

Inference of the parameters of a linear congruential generator

Is there an R package or other open source software that solves the problem of inferring the parameters of a linear congruential generator? Such inference can be done as e.g. described here in a ...
2
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1answer
177 views

Generating Bayesian network graph with dsc file

I'm using a free version of Bayesian network software called Netica. It allows only 15 nodes for the free version. Do you know any other software or R package that generate a kind of graph below using ...
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0answers
46 views

Is there web-based software to implement snowball sampling?

I want to implement snowball sampling using web-based software. Basically, at the end of the survey, the consumer can choose to provide me some names and emails of other respondents. I would like the ...
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1answer
78 views

Which variety of Linux is best suited to work with R, SAS, SQL, Matlab? [closed]

Which variety of Linux is best suited to work with R, SAS, SQL, Matlab? Is it Scientific Linux?
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1answer
92 views

Statistical package that works with sql database

At my firm we have been calculating fundamental stock factors each week for over a decade. We have the performance of each of these factors. I'd like to enhance the statistical analysis of these ...
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1answer
117 views

Software for working with exponential random graphs

I am looking for software packages for working with exponential random graph models (fitting/generating them and sampling from the graph distributions). I have only found two packages so far, both ...
4
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3answers
951 views

Which statistical software is suitable for teaching an undergraduate introductory course of statistics in social sciences?

I am looking for a statistical software package which I can use in an introductory course of statistics for a social science study programme. The students have no prior knowledge of statistics and no ...
2
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3answers
172 views

parallelism in data mining softwares

I'm working on a data set for order prediction/classification and a close deadline upcoming. Fortunately, my university has a super-computer with restricted access. I was thinking of using a few nodes ...
2
votes
1answer
410 views

Any R software package that can perform GxE and stability analysis?

I am looking for a software package that can perform stability analysis as done by: Eberhart, S.A. and W.A. Russell, 1966. Stability parameters for comparing varieties. Crop Sci., 6: 36-40. Is a ...
0
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1answer
412 views

Gretl - calculate the estimated variance of the residuals

I want to learn the statistics package gretl. My first attempt to do so is to calculate a linear regression model of a set of data: $$y_i = \alpha + \beta x_i + u_i$$ First I want to create a ...
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0answers
97 views

Program for Sequential Monte Carlo Algorithm

Does anybody has the example of the program which simulates Sequential Monte Carlo Algorithm? In any software. I'm trying to write such kind of program but there constantly are question and problems I ...
1
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1answer
284 views

Minitab and output

When you conduct a 1 sample t-test why does minitab only give an upper bound or a lower bound for a confidence interval? So if $H_0: \mu = \mu_0$ and we test $H_a: \mu < \mu_0$ or $H_a: \mu > ...
4
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1answer
143 views

Regression for poisson process in R

I have a series of samples of varying length, and the number of bugs created in those time samples. Reading the literature, this is often modeled as a Poisson process. If you write it like: ...
5
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1answer
80 views

Program yourself or use data mining toolkit?

I'm quite comfortable using Python and additional ML/Visualization packages for ML and data mining. How do the free data mining software RapidMinder, KNIME, etc. compare to this approach, and do they ...
2
votes
1answer
197 views

How can I estimate parameters of a convolution of an exponential and gamma?

Ideally, I would input a one-dimensional array of data, and output the estimates for the three parameters. I'm not very familiar with any statistics software but I have MATLAB (and all of the free ...
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5answers
6k views

Does anyone know any good open source software for visualizing data from database?

Recently I came across Tableau and tried to visualize the data from database and csv file. The user iterface enables the user to visualize time and spatial data and create plots in an instant. Such ...