Linear algebraEigenvalues and EigenvectorsNov 18, 2020 | 20 min read Time seriesVariability of Nonstationary Time SeriesOct 9, 2020 | 13 min read Linear modelEstimationSep 30, 2019 | 16 min read Mathematical statisticsBasic ConceptsSep 25, 2019 | 12 min read Nonparametric methodsFundamentals of Nonparametric MethodsJan 26, 2019 | 10 min read Time seriesSep 14, 2020 | 15 min readModel Fitting and ForecastingThis model-building strategy consists of three steps: model specification (identification), model fitting, and model diagnostics.#Statistics #Time Series #Regression #RTime seriesSep 13, 2020 | 8 min readARMA ModelThe mean, variance, ACF and PACF of ARMA models. The backshift operator is introduced, and the stationarity and invertibility of the general ARMA(p, q) model is discussed.#Statistics #Time Series #Autocorrelation #RTime seriesSep 5, 2020 | 6 min readMoving Average ModelThe mean, variance, ACF and PACF of moving average models. Instead of stationarity, a new property called invertibility is introduced.#Statistics #Time Series #Autocorrelation #RLinear algebraAug 31, 2020 | 8 min readVector SpaceWe introduce some basic terminology - vector space, subspace, span, basis, and dimension. These concepts lay the foundation for future discussions on matrices and matrix properties.#Linear Algebra #Matrix #Operations #VisualizationLinear algebraAug 31, 2020 | 3 min readLinear Dependence and IndependenceA short piece on linearly dependent and independent sets of vectors.#Linear Algebra #CorrelationTime seriesAug 29, 2020 | 9 min readAutoregressive SeriesWe talk about autoregressive models of different orders, and introduce their mean, variance, ACF and PACF values. Its stationarity is also briefly discussed.#Statistics #Time Series #Autocorrelation #RTime seriesAug 28, 2020 | 11 min readIntroductionWe introduce some basic ideas of time series analysis and stochastic processes. Of particular importance are the concepts of stationarity and the autocovariance and sample autocovariance functions.#Statistics #Time Series #Autocorrelation #Visualization #Regression #Independent SamplesLinear algebraAug 26, 2020 | 8 min readMatricesMatrix algebra plays an important role in many areas of statistics, such as linear statistical models and multivariate analysis. In this chapter we introduce basic terminology and some basic matrix operations. We also introduce some basic types of matrices.#Linear Algebra #Matrix #OperationsMathematical statisticsApr 21, 2020 | 9 min readLinear ModelsSo far we’ve finished the main materials of this course - estimation and hypothesis testing. The starting point of all the statistical analyses …#Mathematical Statistics #Linear Regression #StatisticsLinuxApr 14, 2020 |Install Dependencies for Puppeteer on Manjaro Linux#Python #Linux #DevOps«««1234 … 6»»»