Pertanyaan yang diberi tag robust

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Mengapa model statistik cocok jika diberi set data yang sangat besar?

Proyek saya saat ini mungkin mengharuskan saya untuk membuat model untuk memprediksi perilaku sekelompok orang tertentu. set data pelatihan hanya berisi 6 variabel (id hanya untuk tujuan identifikasi): id, age, income, gender, job category, monthly spend di mana monthly spendadalah variabel...

modeling large-data overfitting clustering algorithms error spatial r regression predictive-models linear-model average measurement-error weighted-mean error-propagation python standard-error weighted-regression hypothesis-testing time-series machine-learning self-study arima regression correlation anova statistical-significance excel r regression distributions statistical-significance contingency-tables regression optimization measurement-error loss-functions image-processing java panel-data probability conditional-probability r lme4-nlme model-comparison time-series probability probability conditional-probability logistic multiple-regression model-selection r regression model-based-clustering svm feature-selection feature-construction time-series forecasting stationarity r distributions bootstrap r distributions estimation maximum-likelihood garch references probability conditional-probability regression logistic regression-coefficients model-comparison confidence-interval r regression r generalized-linear-model outliers robust regression classification categorical-data r association-rules machine-learning distributions posterior likelihood r hypothesis-testing normality-assumption missing-data convergence expectation-maximization regression self-study categorical-data regression simulation regression self-study self-study gamma-distribution modeling microarray synthetic-data
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Regresi monotonik yang kuat dalam R

Saya memiliki tabel berikut ini di R df <- structure(list(x = structure(c(12458, 12633, 12692, 12830, 13369, 13455, 13458, 13515), class = "Date"), y = c(6080, 6949, 7076, 7818, 0, 0, 10765, 11153)), .Names = c("x", "y"), row.names = c("1", "2", "3", "4", "5", "6", "8", "9"), class =...

r regression linear-model robust
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Pasang garis regresi yang kuat menggunakan MM-estimator di R

Konteks. Saya ingin mencocokkan garis regresi untuk mempelajari hubungan antara beberapa variabel responyyy dan beberapa kovariat terus menerus xxx. Karena adanya poin leverage yang buruk, saya telah memilih untuk estimator MM daripada estimasi LS. Metodologi. Pada dasarnya, estimasi-MM adalah...

r robust