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A Mathematical Procedure for Evaluating Relationships Between Climate and Wheat Yields 1
Author(s) -
Johnson Wendell C.
Publication year - 1959
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1959.00021962005100110001x
Subject(s) - mathematics , variance (accounting) , regression , statistics , regression analysis , yield (engineering) , winter wheat , linear regression , distribution (mathematics) , agronomy , mathematical analysis , thermodynamics , physics , accounting , biology , business
Synopsis To estimate a frequency distribution of winter wheat yields from climatic data a yield‐estimating equation is desired satisfying the condition that the mean and variance of the estimated yields be the same as those of the actual yields used to derive the equation. Partial regression coefficients of this equation are obtained by dividing the corresponding coefficients of a multiple regression equation by the coefficient of multiple correlation, R.