Perguntas com a marcação «bhattacharyya»

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Um exemplo: regressão do LASSO usando glmnet para resultado binário

Estou começando a se envolver com o uso de glmnetcom LASSO Regressão onde meu desfecho de interesse é dicotômica. Criei um pequeno quadro de dados simulado abaixo: age <- c(4, 8, 7, 12, 6, 9, 10, 14, 7) gender <- c(1, 0, 1, 1, 1, 0, 1, 0, 0) bmi_p <- c(0.86, 0.45, 0.99, 0.84, 0.85, 0.67,...

r self-study lasso regression interpretation anova statistical-significance survey conditional-probability independence naive-bayes graphical-model r time-series forecasting arima r forecasting exponential-smoothing bootstrap outliers r regression poisson-distribution zero-inflation genetic-algorithms machine-learning feature-selection cart categorical-data interpretation descriptive-statistics variance multivariate-analysis covariance-matrix r data-visualization generalized-linear-model binomial proportion pca matlab svd time-series correlation spss arima chi-squared curve-fitting text-mining zipf probability categorical-data distance group-differences bhattacharyya regression variance mean data-visualization variance clustering r standard-error association-measure somers-d normal-distribution integral numerical-integration bayesian clustering python pymc nonparametric-bayes machine-learning svm kernel-trick hyperparameter poisson-distribution mean continuous-data univariate missing-data dag python likelihood dirichlet-distribution r anova hypothesis-testing statistical-significance p-value rating data-imputation censoring threshold