least-squares regression

Popular Terms
Statistical technique for estimating changes in a dependent variable (such as expenditure on food) which is in linear relationship with one or more independent variables (such as household income, size of the household, dietary needs, etc.). Based on fitting a straight line (called regression line or line of best fit) to the observed data (plotted as a scatter diagram) this technique aims to derive a good relationship (the best fit) that may be used to predict future values of one variable when the value of the other is known. It is so named because, in its computation, the sum of the squared deviations of the computed (future) values from the observed (past) values of the variables is minimized.
Devised by the French mathematician Adrien-Marie Legendre (1752-1833), this technique is applicable to single line functions with any number of independent variables and, under certain assumptions, is the best statistical estimator.


Email Print Embed

  • 665167575 2018-01-20
  • 576171574 2018-01-20
  • 84494573 2018-01-20
  • 504150572 2018-01-20
  • 796416571 2018-01-20
  • 72279570 2018-01-20
  • 50734569 2018-01-20
  • 5215568 2018-01-19
  • 512120567 2018-01-19
  • 314858566 2018-01-19
  • 11778565 2018-01-19
  • 702126564 2018-01-19
  • 715729563 2018-01-19
  • 569692562 2018-01-19
  • 295282561 2018-01-19
  • 991485560 2018-01-19
  • 230200559 2018-01-18
  • 10324558 2018-01-18
  • 825271557 2018-01-18
  • 228878556 2018-01-18