Pertanyaan yang diberi tag misspecification

21
Bagaimana cara memproyeksikan vektor baru ke ruang PCA?

Setelah melakukan analisis komponen utama (PCA), saya ingin memproyeksikan vektor baru ke ruang PCA (yaitu menemukan koordinatnya dalam sistem koordinat PCA). Saya telah menghitung PCA dalam bahasa R menggunakan prcomp. Sekarang saya harus bisa mengalikan vektor saya dengan matriks rotasi PCA....

r pca r variance heteroscedasticity misspecification distributions time-series data-visualization modeling histogram kolmogorov-smirnov negative-binomial likelihood-ratio econometrics panel-data categorical-data scales survey distributions pdf histogram correlation algorithms r gpu parallel-computing approximation mean median references sample-size normality-assumption central-limit-theorem rule-of-thumb confidence-interval estimation mixed-model psychometrics random-effects-model hypothesis-testing sample-size dataset large-data regression standard-deviation variance approximation hypothesis-testing variance central-limit-theorem kernel-trick kernel-smoothing error sampling hypothesis-testing normality-assumption philosophical confidence-interval modeling model-selection experiment-design hypothesis-testing statistical-significance power asymptotics information-retrieval anova multiple-comparisons ancova classification clustering factor-analysis psychometrics r sampling expectation-maximization markov-process r data-visualization correlation regression statistical-significance degrees-of-freedom experiment-design r regression curve-fitting change-point loess machine-learning classification self-study monte-carlo markov-process references mathematical-statistics data-visualization python cart boosting regression classification robust cart survey binomial psychometrics likert psychology asymptotics multinomial
8
Post hoc test dalam ANOVA desain campuran 2x3 menggunakan SPSS?

Saya memiliki dua kelompok yang terdiri dari 10 peserta yang dinilai tiga kali selama percobaan. Untuk menguji perbedaan antara kelompok dan di tiga penilaian, saya menjalankan ANOVA desain campuran 2x3 dengan group(kontrol, eksperimental), time(pertama, kedua, tiga), dan group x time. Keduanya...

anova mixed-model spss post-hoc bonferroni time-series unevenly-spaced-time-series classification normal-distribution discriminant-analysis probability normal-distribution estimation sampling classification svm terminology pivot-table random-generation self-study estimation sampling estimation categorical-data maximum-likelihood excel least-squares instrumental-variables 2sls total-least-squares correlation self-study variance unbiased-estimator bayesian mixed-model ancova statistical-significance references p-value fishers-exact probability monte-carlo particle-filter logistic predictive-models modeling interaction survey hypothesis-testing multiple-regression regression variance data-transformation residuals minitab r time-series forecasting arima garch correlation estimation least-squares bias pca predictive-models genetics sem partial-least-squares nonparametric ordinal-data wilcoxon-mann-whitney bonferroni wilcoxon-signed-rank traminer regression econometrics standard-error robust misspecification r probability logistic generalized-linear-model r-squared effect-size gee ordered-logit bayesian classification svm kernel-trick nonlinear bayesian pca dimensionality-reduction eigenvalues probability distributions mathematical-statistics estimation nonparametric kernel-smoothing expected-value filter mse time-series correlation data-visualization clustering estimation predictive-models recommender-system sparse hypothesis-testing data-transformation parametric probability summations correlation pearson-r spearman-rho bayesian replicability dimensionality-reduction discriminant-analysis outliers weka