Robust estimation Fisher-consistency ROBUST ESTIMATION Asymptotic properties ESTIMACION ROBUSTA Kernel weights M-location functionals Missing data Nonparametric regression Outliers Parameter estimation Smoothing techniques Statistical tests TESTS DE HIPOTESIS ROBUSTOS ASYMPTOTIC BEHAVIOUR Agent-based simulations BIOMETRIA Buenos Aires COMPORTAMIENTO ASINTOTICO Covid 19 ESTIMADORES DE NUCLEOS ESTIMADORES ROBUSTOS Effective reproductive number GENERALIZED REGRESSION MODELS Generalized linear models KERNEL WEIGHTS METODOS ESTADISTICOS MODELO PARCIALMENTE LINEAL DE INDICE SIMPLE MODELOS DE SIMULACION MODELOS GENERALIZADOS