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- library(DescTools)
- library(moments) # skewness(...)
- a <- c(12, 20, 17, 10, 21, 9, 7, 7, 21, 9, 19, 19, 5, 16, 11, 16, 9, 21, 4, 20, 15, 16, 3, 6, 5, 15, 9, 18)
- mean(a) # Media aritmetica
- Mode(a) # Moda
- median(a) # Mediana
- quantile(a, 0.28) # Valor en el percentil 28
- tamaño=length(a) # Dimension del vector
- # dim(d) # Dimensión en una matrix
- var(a) # Cuasi-varianza
- ((length(a)-1)/length(a))*var(a) # Varianza
- sd(a) # Cuasi-desviacion estandar/desviacion tipica
- sqrt((length(a)-1)/length(a) * sd(a)) # Desviacion estandar/desviacion tipica
- desvtipic <- sqrt((length(a)-1)/length(a) * sd(a)) # Igual pero copiandolo en variable
- desvtipic/mean(a) # Coef variacion pearson
- kurtosis(a) # Curtosis(leptocurtica>0,platicurtica<0,mesocurtica=0)
- skewness(a) # Coef asimetria(no estoy del todo seguro)
- is.numeric(a) # Check numeric
- hist(a) # Histograma sobre a
- Freq(a) # Tab frecuencias continua
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