• 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) - 00:20, 17 June 2025
  • Thumbnail for Least squares
    method of least squares is a mathematical optimization technique that aims to determine the best fit function by minimizing the sum of the squares of the...
    36 KB (5,243 words) - 23:15, 19 June 2025
  • Least-squares spectral analysis, based on least squares fitting to known frequencies Lomb–Scargle periodogram, an approximation of the Least-squares spectral...
    24 KB (3,548 words) - 18:39, 2 August 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
  • 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
  • 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 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
  • 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 Polynomial regression
    in terms of the unknown parameters β0, β1, .... Therefore, for least squares analysis, the computational and inferential problems of polynomial regression...
    15 KB (2,406 words) - 23:39, 31 May 2025
  • Thumbnail for Spectral density
    Colors of noise Least-squares spectral analysis Noise spectral density Spectral density estimation Spectral efficiency Spectral leakage Spectral power distribution...
    37 KB (5,894 words) - 19:14, 2 August 2025
  • Thumbnail for Nonlinear regression
    Nonlinear regression (category Regression analysis)
    often assumed to be that which minimizes the sum of squared residuals. This is the ordinary least squares (OLS) approach. However, in cases where the dependent...
    10 KB (1,394 words) - 21:00, 17 March 2025
  • Thumbnail for Spectroscopy
    Lowater Least-squares spectral analysis List of spectroscopists Metamerism (color) Operando spectroscopy Scattering theory Spectral line ratios Spectral power...
    44 KB (4,768 words) - 12:44, 25 July 2025
  • Thumbnail for Principal component analysis
    computing the first few components in a principal component or partial least squares analysis. For very-high-dimensional datasets, such as those generated in...
    117 KB (14,851 words) - 14:54, 21 July 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
  • Thumbnail for Fourier analysis
    least-squares spectral analysis (LSSA) methods that use a least squares fit of sinusoids to data samples, similar to Fourier analysis. Fourier analysis, the most...
    38 KB (4,788 words) - 15:31, 27 April 2025
  • Thumbnail for Time series
    fluctuation analysis Digital signal processing Distributed lag Estimation theory Forecasting Frequency spectrum Hurst exponent Least-squares spectral analysis Monte...
    49 KB (5,826 words) - 13:24, 3 August 2025
  • mean square error (RMSE) is the square root of MSE. The sum of squares of errors (SSE) is the MSE multiplied by the sample size. Sum of squares of residuals...
    16 KB (2,164 words) - 16:12, 23 May 2025
  • Fourier series Fourier analysis for computing periodicity in evenly-spaced data Harmonic (mathematics) Least-squares spectral analysis for computing periodicity...
    14 KB (1,634 words) - 18:04, 6 March 2025
  • Thumbnail for Regression analysis
    packages perform least squares regression analysis and inference. Simple linear regression and multiple regression using least squares can be done in some...
    37 KB (5,235 words) - 18:48, 4 August 2025
  • notably wavelets and least-squares spectral analysis methods for unevenly spaced data. In signal processing, time–frequency analysis is a body of techniques...
    22 KB (3,734 words) - 21:42, 19 February 2025
  • Thumbnail for Bivariate analysis
    calculation is based on the method of the least squares criterion. The goal is to minimize the sum of the squared vertical distances (residuals) between...
    8 KB (946 words) - 06:19, 12 January 2025
  • of methods are known as bilinear factor models. Partial least squares discriminant analysis (PLS-DA) is a variant used when the Y is categorical. PLS...
    23 KB (2,972 words) - 17:50, 19 February 2025
  • with a single sinusoid is a special case of spectral density estimation and least-squares spectral analysis. A good starting value for C can be obtained...
    4 KB (629 words) - 21:46, 21 September 2023
  • Thumbnail for Signal processing
    Bounded variation Dynamic range compression Information theory Least-squares spectral analysis Non-local means Reverberation Sensitivity (electronics) Similarity...
    23 KB (2,270 words) - 00:53, 24 July 2025
  • 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 (4,910 words) - 21:22, 19 June 2025
  • Powered partial least squares discriminant analysis Qualitative variation Randomization test for goodness of fit Relative risk Stratified analysis Tetrachoric...
    3 KB (279 words) - 13:03, 9 April 2024
  • Thumbnail for Variance
    Coefficient of variation Homoscedasticity Least-squares spectral analysis for computing a frequency spectrum with spectral magnitudes in % of variance or in dB...
    61 KB (10,215 words) - 16:29, 24 May 2025
  • Thumbnail for Chi-squared test
    A chi-squared test (also chi-square or χ2 test) is a statistical hypothesis test used in the analysis of contingency tables when the sample sizes are...
    22 KB (2,432 words) - 08:54, 18 July 2025
  • to any form of multiple regression analysis, factor analysis, canonical correlation analysis, discriminant analysis, as well as more general families of...
    8 KB (1,021 words) - 20:37, 19 June 2025