• Thumbnail for Total least squares
    In applied statistics, total least squares is a type of errors-in-variables regression, a least squares data modeling technique in which observational...
    20 KB (3,298 words) - 16:34, 28 October 2024
  • Thumbnail for Least squares
    Least squares is a mathematical optimization method that aims to determine the best fit function by minimizing the sum of the squares of the differences...
    36 KB (5,240 words) - 13:19, 2 June 2025
  • Linear least squares (LLS) is the least squares approximation of linear functions to data. It is a set of formulations for solving statistical problems...
    34 KB (5,375 words) - 12:13, 4 May 2025
  • Least-squares adjustment is a model for the solution of an overdetermined system of equations based on the principle of least squares of observation residuals...
    11 KB (1,397 words) - 10:17, 27 May 2025
  • Weighted least squares (WLS), also known as weighted linear regression, is a generalization of ordinary least squares and linear regression in which knowledge...
    14 KB (2,249 words) - 19:40, 6 March 2025
  • In statistics, generalized least squares (GLS) is a method used to estimate the unknown parameters in a linear regression model. It is used when there...
    18 KB (2,846 words) - 23:54, 25 May 2025
  • Partial least squares (PLS) regression is a statistical method that bears some relation to principal components regression and is a reduced rank regression;...
    23 KB (2,972 words) - 17:50, 19 February 2025
  • The method of iteratively reweighted least squares (IRLS) is used to solve certain optimization problems with objective functions of the form of a p-norm:...
    6 KB (820 words) - 19:40, 6 March 2025
  • Thumbnail for Ordinary least squares
    set of explanatory variables) by the principle of least squares: minimizing the sum of the squares of the differences between the observed dependent variable...
    65 KB (9,096 words) - 12:16, 2 June 2025
  • Thumbnail for Least-squares spectral analysis
    Least-squares spectral analysis (LSSA) is a method of estimating a frequency spectrum based on a least-squares fit of sinusoids to data samples, similar...
    28 KB (3,354 words) - 11:45, 30 May 2024
  • mathematical optimization, the problem of non-negative least squares (NNLS) is a type of constrained least squares problem where the coefficients are not allowed...
    9 KB (935 words) - 17:14, 19 February 2025
  • Thumbnail for Singular value decomposition
    called a left null vector of ⁠ A . {\displaystyle \mathbf {A} .} ⁠ A total least squares problem seeks the vector ⁠ x {\displaystyle \mathbf {x} } ⁠ that...
    91 KB (14,592 words) - 22:14, 1 June 2025
  • Non-linear least squares is the form of least squares analysis used to fit a set of m observations with a model that is non-linear in n unknown parameters...
    28 KB (4,539 words) - 08:58, 21 March 2025
  • classes of linear models, the total sum of squares equals the explained sum of squares plus the residual sum of squares. For proof of this in the multivariate...
    2 KB (297 words) - 08:24, 7 October 2024
  • general, total sum of squares = explained sum of squares + residual sum of squares. For a proof of this in the multivariate ordinary least squares (OLS)...
    6 KB (1,055 words) - 08:31, 1 March 2023
  • Thumbnail for Deming regression
    observations on both the x- and the y- axis. It is a special case of total least squares, which allows for any number of predictors and a more complicated...
    10 KB (1,533 words) - 16:00, 28 October 2024
  • Regularized least squares (RLS) is a family of methods for solving the least-squares problem while using regularization to further constrain the resulting...
    27 KB (4,894 words) - 19:32, 25 January 2025
  • Thumbnail for Curve fitting
    means trying to minimize the orthogonal distance to the curve (e.g., total least squares), or to otherwise include both axes of displacement of a point from...
    17 KB (2,144 words) - 12:58, 6 May 2025
  • techniques, including principal component analysis, factor analysis, total least squares, latent semantic analysis, orthogonal regression, and dynamic mode...
    22 KB (3,884 words) - 11:38, 8 April 2025
  • when data are obtained in the presence of actuation. Total Least Squares DMD: Total Least Squares DMD is a recent modification of Exact DMD meant to address...
    24 KB (3,792 words) - 17:26, 9 May 2025
  • dissertation, Analysis of the Total Least Squares Problem and its use in parameter estimation, concerned total least squares methods for parameter estimation...
    3 KB (325 words) - 09:26, 19 February 2025
  • Thumbnail for Regression dilution
    functional model or functional relationship. It can be corrected using total least squares and errors-in-variables models in general. The case that the x variable...
    18 KB (2,356 words) - 13:17, 27 December 2024
  • perpendicular distance to measure the quality of a fit exist, as in total least squares. The concept of perpendicular distance may be generalized to orthogonal...
    2 KB (295 words) - 19:39, 23 May 2024
  • External links 1.96 2SLS (two-stage least squares) – redirects to instrumental variable 3SLS – see three-stage least squares 68–95–99.7 rule 100-year flood...
    87 KB (8,280 words) - 23:04, 12 March 2025
  • Germany Terrestrial laser scanning, a 3D laser scanning method Total least squares, a statistical analysis Translesion synthesis, a form of DNA repair...
    2 KB (299 words) - 10:16, 4 June 2022
  • Thumbnail for Polynomial regression
    Polynomial regression models are usually fit using the method of least squares. The least-squares method minimizes the variance of the unbiased estimators of...
    15 KB (2,406 words) - 23:39, 31 May 2025
  • Mean square error Residual sum of squares Explained sum of squares Total sum of squares Scatterplot General linear model Ordinary least squares Generalized...
    5 KB (327 words) - 12:15, 30 October 2023
  • Thumbnail for Simple linear regression
    stipulation that the ordinary least squares (OLS) method should be used: the accuracy of each predicted value is measured by its squared residual (vertical distance...
    32 KB (5,331 words) - 19:00, 25 April 2025
  • Thumbnail for Magic square
    fourth-order magic squares, while merely passing on the finished diagrams of larger squares. He gives a magic square of order 3, two squares for each order...
    283 KB (22,415 words) - 13:03, 2 June 2025
  • Thumbnail for Perpendicular
    perpendicular distance to measure the quality of a fit exist, as in total least squares. The concept of perpendicular distance may be generalized to orthogonal...
    15 KB (2,314 words) - 18:12, 19 May 2025