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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2021
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| Online Access: | https://www.redalyc.org/articulo.oa?id=179969339007 https://www.redalyc.org/journal/1799/179969339007/ https://www.redalyc.org/journal/1799/179969339007/html/ https://www.redalyc.org/journal/1799/179969339007/179969339007.epub https://www.redalyc.org/journal/1799/179969339007/movil |
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Table of Contents:
- Comparison of statistical indices for the evaluation of crop models performance Tatiana María Saldaña-Villota José Miguel Cotes-Torres Agrociencias RMSE Model evaluation Index of agreement Deviation statistics Crop simulation model This study presents a comparison of the usual statistical methods used for crop model assessment. A case study was conducted using a data set from observations of the total dry weight in diploid potato crop, and six simulated data sets derived from the observations aimed to predict the measured data. Statistical indices such as the coefficient of determination, the root mean squared error, the relative root mean squared error, mean error, index of agreement, modified index of agreement, revised index of agreement, modeling efficiency, and revised modeling efficiency were compared. The results showed that the coefficient of determination is not a useful statistical index for model evaluation. The root mean squared error together with the relative root mean squared error offer an excellent notion of how deviated the simulations are in the same unit of the variable and percentage terms, and they leave no doubt when evaluating the quality of the simulations of a model. 2021 artículo científico 0304-2847 https://www.redalyc.org/articulo.oa?id=179969339007 https://www.redalyc.org/journal/1799/179969339007/ https://www.redalyc.org/journal/1799/179969339007/html/ https://www.redalyc.org/journal/1799/179969339007/179969339007.epub https://www.redalyc.org/journal/1799/179969339007/movil 10.15446/rfnam.v74n3.93562 en http://www.redalyc.org/revista.oa?id=1799 Revista Facultad Nacional de Agronomía - Medellín application/pdf Universidad Nacional de Colombia Revista Facultad Nacional de Agronomía - Medellín (Colombia) Num.3 Vol.74