random variable related issues & queries in StatsXchanger

How to create a random walk that is bounded between 0 and 1?

probability stochastic-processes random-walk
Updated April 22, 2018 00:19 AM

How do I combine the results of multiple similarity tests for connected random variables?

hypothesis-testing statistical-significance random-variable
Updated April 21, 2018 21:19 PM

What is the accepted method of conducting a post hoc power analysis for a mixed effects analysis?

mixed-model random-variable random-effects-model power-analysis power
Updated April 20, 2018 22:19 PM

What does it mean when including a variable (ex Subject) as a random effect gets rid of an effect otherwise clear from a graph?

lme4-nlme random-effects-model
Updated April 20, 2018 22:19 PM

R Stats - create new variable from custom function

r dataset variable
Updated April 20, 2018 10:19 AM

Intuition on Independence of Random Vectors

probability self-study correlation random-variable independence
Updated April 20, 2018 10:19 AM

Changing node values of DecisionTree after training (using sklearn)

random-forest scikit-learn cart
Updated April 20, 2018 09:19 AM

predictions with random forest in caret

machine-learning random-forest caret
Updated April 20, 2018 08:19 AM

Is it 'fair' to set a seed in a random forest regression to yield the highest accuracy?

cross-validation random-forest
Updated April 19, 2018 22:19 PM

panel data - Random effects model

panel-data random-effects-model
Updated April 19, 2018 14:19 PM

How to understand RandomForestExplainer output (R package)

r machine-learning random-forest
Updated April 19, 2018 04:19 AM

Predicting taxi revenue per day: why does the random forests technique perform so much better out of the box?

forecasting arima random-forest prediction lstm
Updated April 19, 2018 01:19 AM

What's the potential best model to solve this classification problem?

machine-learning random-forest
Updated April 19, 2018 00:19 AM

Is it possible to do posterior predictive checks when using Random Forest for Bayesian parameter inference?

regression random-forest descriptive-statistics abc
Updated April 18, 2018 23:19 PM

Crossed effects linear mixed model (lmer): Fixed effects reversing with addition of another variable?

mixed-model lme4-nlme linear-model random-effects-model fixed-effects-model
Updated April 18, 2018 16:19 PM

Conditional Expectation of a Random Forest Model

random-forest conditional-expectation
Updated April 17, 2018 15:19 PM

Estimate of hidden threshold based on binary RV observations

bayesian random-variable inference cdf
Updated April 17, 2018 01:19 AM

Randomly sample point from a 2D pdf image

random-generation
Updated April 17, 2018 01:19 AM

Why random effect has variance when covariate added but not when estimating the intercept alone in GLMM

r interpretation random-effects-model glmm
Updated April 16, 2018 21:19 PM

random forest for imbalanced data?

machine-learning random-forest unbalanced-classes
Updated April 16, 2018 16:19 PM

Given a random Bernoulli trial generator, write a function to return a value sampled from a uniform distribution

random-generation
Updated April 16, 2018 03:19 AM

How to evaluate a summation equation containing a random variable?

probability distributions random-variable summations
Updated April 15, 2018 12:19 PM

Help with understanding why the distribution of the score difference isn't a normal distribution?

normal-distribution random-variable independence
Updated April 15, 2018 02:19 AM

What exactly is outputted by the ranef() function from the lmer package? The posterior mode of each cluster's random effects distribution?

lme4-nlme random-effects-model
Updated April 15, 2018 01:19 AM

Multidimensional scaling of random matrix

random-variable multidimensional-scaling
Updated April 15, 2018 00:19 AM

Simulation algorithm using copulas

random-variable simulation monte-carlo copula
Updated April 14, 2018 17:19 PM

Distribution of $X+Y$ when $X$ and $Y$ are i.i.d with pdf $f(x)=\alpha\beta^{-\alpha}x^{\alpha-1}\mathbf1_{0<x<\beta}$

self-study distributions mathematical-statistics random-variable
Updated April 14, 2018 09:19 AM

Using Random Forests for modeling discrete choice problems

logistic random-forest econometrics logit clogit
Updated April 14, 2018 00:19 AM

How to simulate R data for a random effects model set-up?

random-effects-model linear effects
Updated April 13, 2018 23:19 PM

what to do if all control variables are insignificant and none affect the main effects?

controlling-for-a-variable
Updated April 13, 2018 10:19 AM

What type of data is year?

self-study categorical-data ordinal-data discrete-data variable
Updated April 13, 2018 07:19 AM

Generating pseudorandom numbers from a piecewise function

random-generation
Updated April 12, 2018 23:19 PM

Applying SMOTE and increasing sensitivity

random-forest cart unbalanced-classes sensitivity
Updated April 12, 2018 20:19 PM

Learning a continuous model from binned data

regression ordinal-data latent-variable binning
Updated April 12, 2018 19:19 PM

Hausman Test interpretation is based on the p-value? - R output

statistical-significance interpretation random-effects-model fixed-effects-model hausman
Updated April 12, 2018 14:19 PM

When is the product XY of two continuous random variables independent of X?

normal-distribution random-variable independence non-independent
Updated April 12, 2018 11:19 AM

Random Forest not improving Regression Tree

random-forest goodness-of-fit
Updated April 12, 2018 09:19 AM

How to simulate data in R that corresponds to a random/mixed effects model?

mixed-model random-effects-model
Updated April 12, 2018 08:19 AM

Expectation of a Matrix Raised to a Power

expected-value matrix-inverse random-matrix
Updated April 11, 2018 23:19 PM

Using Support Vector Machine on Large Data

machine-learning svm random-forest
Updated April 11, 2018 19:19 PM

Mixing variable types in latent class/profile analysis?

stata latent-variable latent-class
Updated April 11, 2018 17:19 PM

Hyperparameter tuning on the whole data set reasonable?

python random-forest hyperparameter
Updated April 11, 2018 13:19 PM

Can Random Forest regression be conducted with a response variable containing <5 unique values?

r random-forest
Updated April 11, 2018 07:19 AM

Using LASSO to do the feature selection

machine-learning random-forest data-mining lasso
Updated April 10, 2018 21:19 PM

How XGBoost choose where to add splits?

random-forest cart boosting xgboost
Updated April 10, 2018 14:19 PM

Generate vector in $\mathbb{Z}^3$ with fixed sum and uniform distribution

simulation random-generation uniform
Updated April 10, 2018 13:19 PM

infinitesimal jackknife confidence intervals for bagged learners are NOT prediction intervals, right?

r confidence-interval random-forest prediction-interval
Updated April 09, 2018 22:19 PM

Classification Ensemble with Random Forest as base classifier

random-forest ensemble voting-system
Updated April 09, 2018 21:19 PM

Quantifying uncertainty when wrapping a statistical model around machine learning model output

machine-learning random-forest boosting uncertainty partial
Updated April 09, 2018 15:19 PM

How many subtrees are trained in decision tree pruning?

cross-validation random-forest cart
Updated April 09, 2018 13:19 PM

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