DIGITALNA ARHIVA ŠUMARSKOG LISTA

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ŠUMARSKI LIST 1-2/1990 str. 72 <-- 72 --> PDF |

Meyer , H.A. (1941): A Correction for a Systematic Error Occuring in the Aplic ation or the Logarithmic Volume Equation. The Pennsylvania State Forest School, Research Paper No 7. Microsoft Corporation (1987): Microsoft GW-BASIC, User´s Guide and User´s Reference. Error Removal in the Logarithmic Equalization of the Mihajlov Function Summary In this work, the possibility of computer application for the equalization of the altitude curve has been investigated, whereby the Mihajlo v function (H = 1.3 + b0e(-bld) has been used as a suitable mathematical model. A supposed parameter (bj) method has been used, enabling a consequent calculation of a parameter b0 (out of the condition: deviation sum = 0). Next, the sum of the squares of the s. d. for these parameters has been calculated. The same procedure has been repeated for the next supposed parameter bt, which differs from the preliminary or introductory one. The difference was a step ´k´. Thus achieved sum of the squares of the s. d. of the second supposition has been compared with the first one, or with the preliminary one. The procedure has been used to decide on the progress of continuing the further investigations of the matter until it gave deliberately derived parameters which satisfy the following conditions: the sum of deviations (SO) = 0; the sum of the squares of standard deviations (SKO) = minimum. The parameter b, has been used as the first supposition derived by a logarithmic method, which shortens the supposing procedure. |