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### Taxonomy of statistical methods [closed]

Can someone point out to the scientific work that is methodologically developing and explaining the taxonomy of statistical methods? A similar question was asked here [1], however I am curious to know ...
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### What else I can try to model preferential data?

I have a dataset that has User data and corresponding targets as number of desktop logins, mobile app logins, web logins. Now based on the counts, we clustered the 3 logins to form 3 target classes: 1....
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### how to assess importance of each predictor in robust linear regression

I have been using rlm() in the MASS library in R with the redescending weights (using MM or Tukey's biweight function). I wanted to find the importance of each predictor in the fitted model. Can ...
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### Methods and Demographics

Specific question: How do statisticians determine the likelihood that such-and-such type of person will commit a crime? What is their methodology? To illustrate what I'm talking about, people will ...
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### Designing a prognostic model from a randomized controlled trial

I want to develop a prognostic model from outcome data of patients treated in a randomized controlled trial where patients received radiotherapy in one arm and radiotherapy and concurrent chemotherapy ...
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### Proper way of averaging histograms

How does one go about averaging multiple histograms of a quantity $x,$ if the individual histograms do not have the same range, that is, $R_i=\text{max}(x_i)-\text{min}(x_i)$ will be different for two ...
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### Research on Simulation Sickness combining scenes, methods and types of devices

I hope this is a right place to ask this question. If not, just point me to the right Exchange site. I am doing a research (a thesis) on the topic of Simulation sickness (SS) and methods to helping ...
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### What is an appropriate statistic for this problem

I measured an independent variable, Y, at 4 locations: Y1, Y2, Y3, Y4. I assume Y is influences by 5 factors: A B C D E, and measured them together with Y at each location. Therefore, Y1 ~ A1 + B1 + ...
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### Do I still need ergodicity if I have multiple/infinite time series of the same data generating process?

The main reason we need ergodicity (and therefore stationarity) is, as Shalizi puts it: The ergodic theorem is important, because it tells us that a single long time series becomes ...
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### Independence of two categorical variables & chi-square

I have data as follows: ...
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### How to test the relevance of Taylor's rule after the crisis of 2008?

I have a quick query regarding the selection of methodology and test for the empirical relevance of Taylor rule especially after the global financial crisis of 2007 to 2009. I want to capture long-...
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### Weight or impact of variable in correlation

Consider I've have two curves (catgeory1,category2) that are strongly negatively correlated( -0.88). for 1, I've few sub-category (o,p,q,r,s,t,u,v,w,x,y,z). I want to know the weight of each one in ...
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### curve vs 2 curves and correlation

I've data as follows: ...
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### Different Effects of Detection Probability Between Presence and Count Data at the Same Location

I'm modeling habitat suitability for a large, mobile animal using occurrence data (presence only---I have no true absence data in this case) collected from camera traps (stations with automatic motion/...
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### What are some statistical models used in business? [closed]

I am looking for some interesting statistical models and 'rules' that are very useful in a business perspective. Strictly speaking, depending on the business case each statistical method or model can ...
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### Meaningful statistical question: what if some values of x have no effect on y

I have a general question about modelling methodology,which can be motivated by a simple example. Consider the following question: How does age affect the probability of voting? More specifically, ...
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### How to analyze a Semantic Differential?

1) How do we statistically analyze data from a semantic differential? I have seen the results rendered as a graphic joining each point as such
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### Methodology: breaking multi-regression apart

I have to perform a multiple regression where my independent variable is store visits, while the dependents include hour of day, day of week, and others. I need to do this in Excel. Excel limits ...
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### Rigorous theory behind overfitting

I am taking an intro to ML class, and in my limited experience, training ML algorithms (validation, overfitting etc.) feels a bit like black magic. For instance, you aren't supposed to touch the test ...
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### How to test statistical significance to prove that a particular technique estimates a variable better than another technique?

Suppose the following is the scenario: I am estimating the measure of a construct. I have Subject Matter Experts (SME) who have manually (through observation) estimated the measures. Suppose I have ...
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### Can I replace traditional DSP with statistical methods

I work a lot with noisy time traces with usually 2.5e6 data points and sampling frequency ~ MHz. I usually apply some "traditional" digital signal processing utilities like low/high-pass filters to ...
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### What tradeoffs are there between internal and external validity?

I was reading through an article about research design. The authors gave an example on the relation between internal and external validity which I thought might be an important area of consideration ...
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### non-linear regression predictions goodness of fit

I have a non-linear model that, given some parameters and the initial state of the system can predict the outcome of this system after t times. I had train my model using some data and I'm now trying ...
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### Statistical methods for adjusting heaping in birth weight data

I have a birth weight data of children under aged 5 years (sample size, n=2000). Data comes from two sources : 1. Mothers recall (n=1500) and Health card (n=500). Naturally, mothers' recall data ...
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I need some advice on how to tackle this problem. I have two groups (treatment n=30 and no-treatment 400). I want to match the treatment group patients to the other group based on comorbidities and ...
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### Appropriate analysing methods for theoretical questions

I am currently trying to analyse a set of data from a survey conducted that has a lot of YES/NO questions. For instance, one question asks if the respondent currently has a data plan with their ...
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### Is it methodologically valid to try multiple feature selection methods and report the best?

I am working on a classification problem. I have used multiple feature selection methods, and a model is selected (i.e. hyperparameter optimization) and trained for each of the selected features. I ...
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### Accounting for variation between populations when comparing failure rates

Here's my situation. The big picture is that I need to figure out how to compare the failure rates of two groups of widgets, Group A (defect) and Group B (control), in such a way that answers the ...
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### Proportion dependent variable (0-1 range) in an unbalanced, non-dynamic panel

I am a PhD student currently performing data analysis for my publication and have the following problem: Dataset: unbalanced data of around 80 firms over 20 year period (due to firms entering and ...
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### Distance measure methods of R function dist() evaluation

I want to compute the distance matrix for the columns on a 1000 x 230 matrix using the dist() function in R. Though, I am uncertain about which method to use. I ...
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### Can age,education level and socioeconomic status be controlled but not as covariates to strengthen an experimental study?

Most ppl include age, education level and socioeconomic status in their demographics just to show their sample of study. But in my case all those 3 factors are predictors of my DV which is prosocial ...
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### Is it possible to decompose 3-factor change in growth rate terms?

Let's say, we investigate what caused the growth in working-age population (W). There are basically three factors causing the change in W. First, mortality at working ages (MT). Second, migration ...
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### Is Multiple Regression the right choice for my statistical design?

I am studying the relationship between mental health offices and judgments of perceived care expected within those environments. Participants will rate different photographs of mental health offices (...
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### Running Multiple Linear Regression in R with 3 Factors and 1 Continuous Variable

I am running a Multiple Linear Regression model using R. I am looking at travel behavior and most of the variables are factors with YES or NO as responses. However, I am concerned about using 3 ...
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### Is there a resampling method that blends subsampling with the bootstrap?

I apologize if this is an inappropriate question. I thought of it in class the other day, and I couldn't find a specific answer in my textbooks. I am familiar with the two basic techniques for ...
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### When to use Poisson v. Geometric v. Negative Binomial; GLM, the Three Count Variable Distributions

I'm trying to layout for myself when it's appropriate to use which regression type (geometric, poisson, negative binomial) with count data, within the GLM (only 3 of the 8 GLM distributions are used ...
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### What model to use? Heckman-Two-Stage? Tobit? OLS?

I am currently researching innovation with firm level data. I have a nice dataset, which allows to analyze the variable inno which is ...
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### Methodological question: adjusting for confounders in logistic regression

I have three attributes in a dataset (D0), representing the binary response of success or failure (R), some form of treatment or treatment group (T), and a potential confounder (C) respectively. ...
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### Split-half when intermediate values are equal

I am trying to perform a split-half for strategy use, however, as you can see the middle most users have the same score. What is the best approach to perform a split-half in this situation? Do you ...
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### Find determining variables between two groups

I have a large dataset with many variables (for example: height, weight, color, category, revenue...) I am trying to compare two groups and find which variables determine the groups. My goal would be ...
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### Different groups, same intervention. What design is this?

I'm trying to figure out the best way to analyse the following clinical trial: Group1: Healthy individuals Group2: Diseased individuals Both groups follow the same intervention and are tested pre- ...
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### Calculating Diversity using normalized species counts

I am trying to calculate the change in diversity of species encountered throughout time. My dataset is comprised to detections of tagged fish for 48 consecutive weeks. My thought was to bin the ...
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### Okay method to aggregate moving averages?

I want to make a map of investments in foreign countries made by country x. I have collected data for a ten-year period. Since investments change from year to year and there's lack of data for some ...
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### using loess to smooth data improves correlation. What I'm seeing here?

I'm reviewing a work of some collegues which correlates the daily number of tweets on certain topic with some other indicators. They used of loess smoothing regression to diminish the noise of the ...
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### Methods for compiler benchmarking?

In computer science, statistical knowledge is quite low in general. You rarely see standard deviation in papers. Now I am trying to improve at least my skills, but I find myself utterly confused about ...
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### What wrong with this experiment methodology?

The following experiment was devised: a group (random) was divided randomly into 2 : Half were give coffee A the others coffee B, all rated it on a 1-5 Likert scale. Results where analyzed using ...
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### How to determine an appropriate sample size for a normal distributed population?

I am trying to extract a sample from a given population. Assuming the population distribution is normal (I still have to test it, but I am confident it is), since the number of observations in the ...
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### Statistics for model selection and model evaluation

In his Dynamic Econometrics, David F. Hendry issues the following advice: When a 'test' statistic is cited, you must ask 'Was that a selection criterion statistic or a genuine test statistic?' ...