Abstract
Computer values of the mean square error of the Nigerian Geodetic Levelling based on the model xij = ρij/R 1/2ij showed a uniformity between the lines of levelling, of a nature which suggest that xij = ρij/R 1/2ij is a good fit for the data. Values of the mean square error of the levelling based on wij = ρij/Rij showed such significant variation between the lines that this alternative model does not seem to be supported by the data used in this study.
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References
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Ebong, M.B. On the choice of a random variable which eliminates the bias caused by variable spacing in geodetic levelling. Bull. Geodesique 60, 279–287 (1986). https://doi.org/10.1007/BF02522336
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DOI: https://doi.org/10.1007/BF02522336