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Questions tagged [software]

Make sure your question is related to STATISTICS, MACHINE LEARNING, or DATA ANALYSIS and is not solely about programming, support, or bugs. Include additional tags referring to the statistical issues involved.

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4 votes
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Knowing when to stop benchmarking

I have a basic question that I'm sure must have been asked before, but I don't know the words to Google... I do a lot of benchmarking software, ie comparing two different implementations of the same ...
Matt Parlane's user avatar
0 votes
0 answers
16 views

How to estimate a date given data on past dates?

I am working on a free visa timeline tracker to let people estimate how long the UK Home Office will take to respond to their applications. I don't know much about statistics, only basic school ...
Lucien's user avatar
  • 101
3 votes
1 answer
154 views

R package for Accelerated failure time Models with arbitrary censoring and left truncation

This is a simple exploratory R question i hope somebody can help me with. I am trying to model accelerated failure time models on data that is arbitrarily censored (right, left, or interval censored) ...
Nikolaj Pedersen's user avatar
1 vote
1 answer
29 views

How to make a Ramanmetrix model accept values other than the Raman spectra for input? [closed]

I am working on a project to automatically evaluate Raman spectra from a production process. It already works for some compounds with the chemometrics software Ramanmetrix (desktop version 0.5.0). ...
mimu7's user avatar
  • 13
1 vote
1 answer
81 views

How should I analyze my Likert scale data?

I am a high schooler conducting a survey on a group of 20 other high schoolers. They will take a 10 item pretest questionnaire containing 9 5-point Likert scale questions and 1 short-answer response ...
windlevane's user avatar
1 vote
0 answers
9 views

Comparing two set of data and extract the most information

I have a dataset from RNA sequencing of 4 different regions and comparing 2 groups. I would like to be able to compare the average expression of each group for each gene, however, I don't know the ...
Léo Dupuis's user avatar
0 votes
1 answer
117 views

How to find representative cycles of Vietoris Rips persistence diagrams

I am using the Python package giotto-tda to calculate persistence diagrams of certain 3d point clouds using a Vietoris Rips filtration and euclidean distance. I am especially working with 1 and 2-d ...
ciru_4011's user avatar
  • 133
1 vote
1 answer
38 views

Names of actual software which use the LDA classifier

I read generic claims online and in papers that the Linear Discriminant Analysis (LDA) classifier is widely used for many applications including: face recognition, speech recognition, medical ...
Undertherainbow's user avatar
1 vote
1 answer
30 views

Could you use more than one software for a meta-analysis?

Im currently working on a meta-analysis of interventional randomized controlled trials. In the protocol, I mentinoned that I will be using Review Manager 5 for both the analysis and assesement of ...
Ghassan Saeed's user avatar
1 vote
0 answers
61 views

Fitting a regression model with both binary and continuous responses

It is well known that Probit regression can be formulated as transformed linear model in the following sense: Suppose that $Z = X\beta + \epsilon$ for some normally distributed $\epsilon$ and let $Y = ...
Grassie's user avatar
  • 340
23 votes
5 answers
6k views

How should we do boxplots with small samples?

This question is inspired by this posting, plus a comment by @StephanKolassa and an answer by @dipetkov who point out that the boxplots presented in that question are misleading. As is pointed out, ...
Russ Lenth's user avatar
  • 20.7k
1 vote
0 answers
18 views

Examples of statistical research affected by errors in package/library code

I can't figure out if this belongs in Cross Validated, Stack Overflow, or Academia, but I think this may be a good place to start: Can anyone suggest examples of published prospective/retrospective/...
3 votes
1 answer
68 views

Establish numerical equivalence of statistical model across software

we are trying to establish numerical equivalence (within reasonable precision) for selected statistical models across programming languages such as SAS, R & Python or even different packages ...
Vineet's user avatar
  • 31
0 votes
2 answers
282 views

Is there a statistical software package for the generalized conditional/multinomial logit model?

I have a discrete choice model of moving from one state to the other, so alternatives=states. I have case-specific variables such as income, race, and gender. In addition, I have moving distance ...
1 vote
1 answer
261 views

Statistical comparison of grand/pooled means (nested, mixed-model, t tests)

My problem: I am comparing the means of means of means in my data set. However, my stats software (GraphPad Prism) doesn't know that these said individual values (the means of means of means) are ...
rgbweston's user avatar
0 votes
0 answers
75 views

How can I perform a hypothesis test for this harmonic mean?

Abstract I have a software process that I try to measure with a calculation I call the EHD. The EHD value is computed this way: I perform searches for a "best fit" number in a search space, ...
Daniel R. Collins's user avatar
1 vote
1 answer
30 views

Should data be anonymized irrespective of the domain? [closed]

I am using a dataset from Marketing and sales department. The dataset contains customer name (company name), company address, pincode, no of orders placed, revenue generated from that customer etc. My ...
The Great's user avatar
  • 3,302
0 votes
0 answers
58 views

probabilistic regression in existing packages

I know that typical machine-learning packages (such as scikit-learn or TensorFlow) contain plenty of functions for probabilistic classification: given a training set of pairs $(x_i,y_i)$, where $y_i$ ...
Vlad's user avatar
  • 1
1 vote
1 answer
41 views

What are alternatives of Visual Statistics in R? [closed]

There is software, "Visual Statistics", which helps to visualize some concepts in Statistics. For example, if I want to teach confidence interval at confidence level %95, I would say if I ...
Amin's user avatar
  • 693
9 votes
3 answers
3k views

How do you go from paper to code?

My background is in Computational Biology, although I am a Biologist by training. I just recently started my PhD, and while I have a strong interest/curiosity in Computational Biostatistics/...
wrong_path's user avatar
0 votes
0 answers
80 views

How to determine number of boost for calculating Krippendorff’s Alpha?

I'm using the SPSS macro for computing Krippendorff’s Alpha, developed by Andrew F. Hayes & Klaus Krippendorff. One argument needed is the units of bootstrapping, and I did not find formula for ...
S.F. Yeh's user avatar
2 votes
1 answer
2k views

How to calculate two-way mixed ICC?

I want to calculate ICC for two-way mixed model, single rater, and either for consistency and absolute agreement. I found two packages for calculating ICC (intra-class correlation coefficient), that ...
S.F. Yeh's user avatar
5 votes
1 answer
200 views

Estimate parameter in $x(t) = A \cdot \sin{\left(\omega \cdot t + \varphi \right)} + A_0$ through least squares method

I have a bunch of data $(x_i, \, t_i)$ that is expected to distribute like $x(t) = A \cdot \sin{\left(\omega \cdot t + \varphi \right)} + A_0$. Now I have to estimate the four parameters $(A, \, \...
user avatar
12 votes
0 answers
409 views

Official name of a common type of Bayesian simulation study

There is a kind of simulation study that is commonly used to validate an implementation of a Bayesian model: For independent replication $i = 1, ..., n$: Draw a set of "true" parameters ...
landau's user avatar
  • 267
8 votes
2 answers
5k views

Generating random samples obeying the exponential distribution with a given min and max

Random samples obeying the exponential distribution can be generated by the inverse sampling technique by using the quantile function of the exponential distribution: $$ x = F^{-1}(u) = - \frac{1}{\...
Herpes Free Engineer's user avatar
2 votes
1 answer
170 views

Linear regression with only unique value pairs?

Does it every make sense to discard duplicate value pairs and only perform the linear regression on unique value pairs? I've never heard of using such a method, so I wanted to see if I'm missing ...
Odj fourth's user avatar
3 votes
1 answer
88 views

Can you perform dose-response meta-analysis with only two studies?

Currently, I am conducting a meta-analysis on the association between BMI and prognosis. I discovered that the studies used various cut-offs. However, only two studies are eligible for dose-response ...
amedicalenthusiast's user avatar
1 vote
0 answers
300 views

Bayesian Regression with ARIMA errors

Is there a framework (e.g. R package) which allows for Bayesian estimation of dynamic regression models with AR(I)MA errors (similar to the frequentist implementation in the ...
needRhelp's user avatar
  • 311
1 vote
0 answers
26 views

Conditional probabilities from two data sets using software

I am working on a project where I have two pieces of information for each individual $i$, $x_i$ and $y_i$. There are $n$ individuals in total. I want to find the probability that $y_i \geq y_j$ given $...
Ishan Kashyap Hazarika's user avatar
3 votes
0 answers
1k views

R alternative to scikit-learn [closed]

As a statics researcher, I've been using R since university and I know it quite well, I also know that it's immediate, but it quickly gets chaotic, and this also happens because of the variety and ...
0 votes
0 answers
13 views

Why would we use different output and recurrent activations in an LSTM? [duplicate]

I am developing a LSTM network with Tensorflow. The Tensorflow LSTM documentation shows that there are different activations for the output of the timestep (tanh) and for the data flowing back in to ...
Blake F.'s user avatar
0 votes
1 answer
21 views

Frequency of a value in R [closed]

If there is a data set in R and I want know how many of one value is in it, is there a command for this? thanks
Janitt's user avatar
  • 35
1 vote
1 answer
56 views

Software for multiple logistic regression analysis

Which free and easy to use statistical software can I use to perform a multiple logistic regression analysis?
0 votes
0 answers
67 views

Courses or sources to learn ANOVA

What sources would you recommend to learn ANOVA (with and without software)? What are the prerequisites? If you could recommend me a complete course, online or books (I'd prefer videos but books/...
2 votes
1 answer
116 views

Has the Apophenia C library been used for publications?

Are there analysis works that were conducted using the Apophenia library and were published? This is a C library for statistical analysis. I wanted to know about use cases.
1 vote
1 answer
750 views

Getting different Percentile results when using two different software

I'm calculating 90th percentile values in two different places using two different pieces of software, and I'm getting different results. These results need to be comparable. I understand there are ...
Toby Bloem's user avatar
1 vote
1 answer
80 views

software for one class classification with a Bayesian Network

I'm looking for a software package that would allow to do a one class classification with a Bayesian Network (anomaly detection). I was planning to use bnlearn but so far I'm unable to find out if ...
Michal T's user avatar
  • 111
2 votes
1 answer
1k views

What SPSS test should I use for blood pressure pre- and post-intervention for comparison?

I have 10 participants who consumed an intervention for 3 weeks. I would like to look at any significance between pre-intervention and post-intervention readings. What SPSS test should I use? I ...
Isme Shinu's user avatar
2 votes
0 answers
290 views

SAS and R gives different standard error when fitting Tweedie model

I would like to fit a Tweedie GLM to the data. However, even though PROC GENMOD from SAS and glm() from R gives the same coefficient estimates, they give quite different standard error. What it the ...
3x89g2's user avatar
  • 1,716
7 votes
1 answer
1k views

Why is the intercept typed in as a 1 in stats packages (R, python)

When using statistics software, When defining your linear models, why is the intercept typed in as a 1, rather than "const" or "intercept" or something. What significance does 1 have? Is there some ...
Adam B's user avatar
  • 299
1 vote
1 answer
92 views

Statistical Analysis Software [closed]

I am a psychology student at UCF. I intend to pursue a master's degree in industrial and organizational psychology. We use SPSS in the psychology department. How prevalent is SPSS used in offices? ...
Edgar Metke's user avatar
0 votes
0 answers
171 views

combine samples of supersets to get a reservoir sample of the subset

Here's some background before my question (Bear with me! :D) I am working on a data pipeline that deals with a massive input log dataset; instead of saving the full input log, current version of this ...
Bi Act's user avatar
  • 123
9 votes
1 answer
1k views

Alternatives to Journal of Statistical Software?

I have developed an R package for a general class of regression models with applications in survival analysis. I have prepared a paper describing the package and the methods, and the applications. One ...
2 votes
0 answers
133 views

Implementation of time-varying coefficients model for Cox regression

I would like to implement the time-varying coefficients model (cf. Fan and Zhang, 1999) for a Cox proportional hazards model, as proposed by Cai and Sun (2003), and studied by Tian, Zucker and Wei (...
user36302's user avatar
  • 143
0 votes
0 answers
173 views

Implementation of regularized competing risk models with random effects

Are there any existing software implementations of regularized competing risk cox models with that also allow for random effects (i.e., competing risk frailty models)? That is, models that allow for ...
Richard Border's user avatar
0 votes
0 answers
19 views

Data Correlation for computing software metrics

I have the below sets of data per application, you can call them as software metrics. These metrics vary depending on the size of an application. ...
Sudheej's user avatar
  • 101
2 votes
0 answers
55 views

Design of Experiments through Algebraic Statistics [closed]

I would like to ask you about how to compute a circuit basis of a design matrix in software R. Let me explain: I have found a software, named Macaulay2, that calculates some algebraic tools, and one ...
Vasilis T.'s user avatar
0 votes
2 answers
195 views

Automating a search for correlation

Note: I am not a statistician, though I do have a mathematics background. I know what I would like to do, but I don't have deep subject knowledge. If you use any special jargon, please try to use ...
user avatar
1 vote
1 answer
1k views

How to normalize text when computing the word error rate of a speech recognition system?

I am looking for a library, script or program that can normalize the transcribed and gold texts when computing the word error rate (WER) of an automated speech recognition system. For example, if: ...
Franck Dernoncourt's user avatar
1 vote
0 answers
29 views

How to design a complex machine learning system where individual classifiers can be retrained without modifying rest of the system?

I am designing a machine learning system which consists a bunch of classifiers (each output a confidence score between 0 to 1). Some classifiers consume output from other classifiers as features. Now ...
Shubajit Saha's user avatar

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