Ordinary least squares regression

{
  "id": "MLC-T-CHM-008304",
  "term": "Ordinary least squares regression",
  "field": "Chemistry",
  "definition": "A statistical method for estimating the unknown coefficients in a linear regression model. The procedure finds the optimal parameters by minimizing the sum of the squared vertical distances between the observed data points and the values predicted by the linear function. This method assumes that the errors in the dependent variable have constant variance and are uncorrelated.",
  "synonyms": [
    "classical least squares regression"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "least squares regression",
    "multivariate calibration"
  ],
  "references": [
    "PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 434 (https://doi.org/10.1515/pac-2015-0605)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/ordinary-least-squares-regression/"
}