37 relations: Cambridge University Press, Circumflex, Cook's distance, Covariance, Covariance matrix, David A. Freedman, Dependent and independent variables, Design matrix, Eigenvalues and eigenvectors, Errors and residuals, Fixed effects model, Idempotent matrix, Identity matrix, Independent and identically distributed random variables, Influential observation, Kernel regression, Leverage (statistics), Linear algebra, Linear filter, Linear least squares (mathematics), Linear model, Local regression, Mathematical model, Mean and predicted response, Projection (linear algebra), Propagation of uncertainty, Rank (linear algebra), Robust statistics, Row and column spaces, Smoothing spline, Sparse matrix, Statistics, Studentized residual, Symmetric matrix, The American Statistician, Trace (linear algebra), Variance.

## Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

New!!: Projection matrix and Cambridge University Press · See more »

## Christmas

Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.

New!!: Projection matrix and Christmas · See more »

## Christmas and holiday season

The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.

New!!: Projection matrix and Christmas and holiday season · See more »

## Christmas Eve

Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.

New!!: Projection matrix and Christmas Eve · See more »

## Christmas traditions

Christmas traditions vary from country to country.

New!!: Projection matrix and Christmas traditions · See more »

## Circumflex

The circumflex is a diacritic in the Latin, Greek and Cyrillic scripts that is used in the written forms of many languages and in various romanization and transcription schemes.

New!!: Projection matrix and Circumflex · See more »

## Cook's distance

In statistics, Cook's distance or Cook's D is a commonly used estimate of the influence of a data point when performing a least-squares regression analysis.

New!!: Projection matrix and Cook's distance · See more »

## Covariance

In probability theory and statistics, covariance is a measure of the joint variability of two random variables.

New!!: Projection matrix and Covariance · See more »

## Covariance matrix

In probability theory and statistics, a covariance matrix (also known as dispersion matrix or variance–covariance matrix) is a matrix whose element in the i, j position is the covariance between the i-th and j-th elements of a random vector.

New!!: Projection matrix and Covariance matrix · See more »

## David A. Freedman

David Amiel Freedman (5 March 1938 – 17 October 2008) was Professor of Statistics at the University of California, Berkeley.

New!!: Projection matrix and David A. Freedman · See more »

## Dependent and independent variables

In mathematical modeling, statistical modeling and experimental sciences, the values of dependent variables depend on the values of independent variables.

New!!: Projection matrix and Dependent and independent variables · See more »

## Design matrix

In statistics, a design matrix, also known as model matrix or regressor matrix, is a matrix of values of explanatory variables of a set of objects, often denoted by X. Each row represents an individual object, with the successive columns corresponding to the variables and their specific values for that object.

New!!: Projection matrix and Design matrix · See more »

## Eigenvalues and eigenvectors

In linear algebra, an eigenvector or characteristic vector of a linear transformation is a non-zero vector that changes by only a scalar factor when that linear transformation is applied to it.

New!!: Projection matrix and Eigenvalues and eigenvectors · See more »

## Errors and residuals

In statistics and optimization, errors and residuals are two closely related and easily confused measures of the deviation of an observed value of an element of a statistical sample from its "theoretical value".

New!!: Projection matrix and Errors and residuals · See more »

## Fixed effects model

In statistics, a fixed effects model is a statistical model in which the model parameters are fixed or non-random quantities.

New!!: Projection matrix and Fixed effects model · See more »

## Idempotent matrix

In linear algebra, an idempotent matrix is a matrix which, when multiplied by itself, yields itself.

New!!: Projection matrix and Idempotent matrix · See more »

## Identity matrix

In linear algebra, the identity matrix, or sometimes ambiguously called a unit matrix, of size n is the n × n square matrix with ones on the main diagonal and zeros elsewhere.

New!!: Projection matrix and Identity matrix · See more »

## Independent and identically distributed random variables

In probability theory and statistics, a sequence or other collection of random variables is independent and identically distributed (i.i.d. or iid or IID) if each random variable has the same probability distribution as the others and all are mutually independent.

New!!: Projection matrix and Independent and identically distributed random variables · See more »

## Influential observation

In statistics, an influential observation is an observation for a statistical calculation whose deletion from the dataset would noticeably change the result of the calculation.

New!!: Projection matrix and Influential observation · See more »

## Kernel regression

Kernel regression is a non-parametric technique in statistics to estimate the conditional expectation of a random variable.

New!!: Projection matrix and Kernel regression · See more »

## Leverage (statistics)

In statistics and in particular in regression analysis, leverage is a measure of how far away the independent variable values of an observation are from those of the other observations.

New!!: Projection matrix and Leverage (statistics) · See more »

## Linear algebra

Linear algebra is the branch of mathematics concerning linear equations such as linear functions such as and their representations through matrices and vector spaces.

New!!: Projection matrix and Linear algebra · See more »

## Linear filter

Linear filters process time-varying input signals to produce output signals, subject to the constraint of linearity.

New!!: Projection matrix and Linear filter · See more »

## Linear least squares (mathematics)

In statistics and mathematics, linear least squares is an approach to fitting a mathematical or statistical model to data in cases where the idealized value provided by the model for any data point is expressed linearly in terms of the unknown parameters of the model.

New!!: Projection matrix and Linear least squares (mathematics) · See more »

## Linear model

In statistics, the term linear model is used in different ways according to the context.

New!!: Projection matrix and Linear model · See more »

## Local regression

LOESS and LOWESS (locally weighted scatterplot smoothing) are two strongly related non-parametric regression methods that combine multiple regression models in a ''k''-nearest-neighbor-based meta-model.

New!!: Projection matrix and Local regression · See more »

## Mathematical model

A mathematical model is a description of a system using mathematical concepts and language.

New!!: Projection matrix and Mathematical model · See more »

## Mean and predicted response

In linear regression, mean response and predicted response are values of the dependent variable calculated from the regression parameters and a given value of the independent variable.

New!!: Projection matrix and Mean and predicted response · See more »

## New Year

New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.

New!!: Projection matrix and New Year · See more »

## New Year's Day

New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.

New!!: Projection matrix and New Year's Day · See more »

## New Year's Eve

In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.

New!!: Projection matrix and New Year's Eve · See more »

## Projection (linear algebra)

In linear algebra and functional analysis, a projection is a linear transformation P from a vector space to itself such that.

New!!: Projection matrix and Projection (linear algebra) · See more »

## Propagation of uncertainty

In statistics, propagation of uncertainty (or propagation of error) is the effect of variables' uncertainties (or errors, more specifically random errors) on the uncertainty of a function based on them.

New!!: Projection matrix and Propagation of uncertainty · See more »

## Rank (linear algebra)

In linear algebra, the rank of a matrix A is the dimension of the vector space generated (or spanned) by its columns.

New!!: Projection matrix and Rank (linear algebra) · See more »

## Robust statistics

Robust statistics are statistics with good performance for data drawn from a wide range of probability distributions, especially for distributions that are not normal.

New!!: Projection matrix and Robust statistics · See more »

## Row and column spaces

In linear algebra, the column space (also called the range or '''image''') of a matrix A is the span (set of all possible linear combinations) of its column vectors.

New!!: Projection matrix and Row and column spaces · See more »

## Smoothing spline

Smoothing splines are function estimates, \hat f(x), obtained from a set of noisy observations y_i of the target f(x_i), in order to balance a measure of goodness of fit of \hat f(x_i) to y_i with a derivative based measure of the smoothness of \hat f(x).

New!!: Projection matrix and Smoothing spline · See more »

## Sparse matrix

In numerical analysis and computer science, a sparse matrix or sparse array is a matrix in which most of the elements are zero.

New!!: Projection matrix and Sparse matrix · See more »

## Statistics

Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.

New!!: Projection matrix and Statistics · See more »

## Studentized residual

In statistics, a studentized residual is the quotient resulting from the division of a residual by an estimate of its standard deviation.

New!!: Projection matrix and Studentized residual · See more »

## Symmetric matrix

In linear algebra, a symmetric matrix is a square matrix that is equal to its transpose.

New!!: Projection matrix and Symmetric matrix · See more »

## The American Statistician

The American Statistician is a quarterly peer-reviewed scientific journal covering statistics published by Taylor & Francis on behalf of the American Statistical Association.

New!!: Projection matrix and The American Statistician · See more »

## Trace (linear algebra)

In linear algebra, the trace of an n-by-n square matrix A is defined to be the sum of the elements on the main diagonal (the diagonal from the upper left to the lower right) of A, i.e., where aii denotes the entry on the ith row and ith column of A. The trace of a matrix is the sum of the (complex) eigenvalues, and it is invariant with respect to a change of basis.

New!!: Projection matrix and Trace (linear algebra) · See more »

## Variance

In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean.

New!!: Projection matrix and Variance · See more »

## 2018

2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.

New!!: Projection matrix and 2018 · See more »

## 2019

2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.

New!!: Projection matrix and 2019 · See more »

## Redirects here:

Annihilator matrix, Hat Matrix, Hat matrix, Operator matrix, Yhat.