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Este es un fichero creado por Ezequiel Eliano
This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see
When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:
summary(cars)
## speed dist
## Min. : 4.0 Min. : 2.00
## 1st Qu.:12.0 1st Qu.: 26.00
## Median :15.0 Median : 36.00
## Mean :15.4 Mean : 42.98
## 3rd Qu.:19.0 3rd Qu.: 56.00
## Max. :25.0 Max. :120.00
Esto es un nuevo parrafo escrtito con etiquetas HTML
| Ventajas | Inconvenintes |
|---|---|
| Es facil de utilizar | Necesito prevision y planning |
| Puede exportar a multiples formatos | Necesitamos conocer otras tecnologias |
Se puede definir cualquier codigo en R haciendo uso de los tres acentos agudos.
Despues de cargar los datos, solemos mirar información acerca de los primeros elementos del data frame, la estructura de las columnas del mismo o incluso un resumen de las estadísticas básicas
head(auto)
## No mpg cylinders displacement horsepower weight acceleration model_year
## 1 1 28 4 140 90 2264 15.5 71
## 2 2 19 3 70 97 2330 13.5 72
## 3 3 36 4 107 75 2205 14.5 82
## 4 4 28 4 97 92 2288 17.0 72
## 5 5 21 6 199 90 2648 15.0 70
## 6 6 23 4 115 95 2694 15.0 75
## car_name
## 1 chevrolet vega 2300
## 2 mazda rx2 coupe
## 3 honda accord
## 4 datsun 510 (sw)
## 5 amc gremlin
## 6 audi 100ls
str(auto)
## 'data.frame': 398 obs. of 9 variables:
## $ No : int 1 2 3 4 5 6 7 8 9 10 ...
## $ mpg : num 28 19 36 28 21 23 15.5 32.9 16 13 ...
## $ cylinders : int 4 3 4 4 6 4 8 4 6 8 ...
## $ displacement: num 140 70 107 97 199 115 304 119 250 318 ...
## $ horsepower : int 90 97 75 92 90 95 120 100 105 150 ...
## $ weight : int 2264 2330 2205 2288 2648 2694 3962 2615 3897 3755 ...
## $ acceleration: num 15.5 13.5 14.5 17 15 15 13.9 14.8 18.5 14 ...
## $ model_year : int 71 72 82 72 70 75 76 81 75 76 ...
## $ car_name : Factor w/ 305 levels "amc ambassador brougham",..: 66 184 165 86 8 18 11 79 42 112 ...
summary(auto)
## No mpg cylinders displacement
## Min. : 1.0 Min. : 9.00 Min. :3.000 Min. : 68.0
## 1st Qu.:100.2 1st Qu.:17.50 1st Qu.:4.000 1st Qu.:104.2
## Median :199.5 Median :23.00 Median :4.000 Median :148.5
## Mean :199.5 Mean :23.51 Mean :5.455 Mean :193.4
## 3rd Qu.:298.8 3rd Qu.:29.00 3rd Qu.:8.000 3rd Qu.:262.0
## Max. :398.0 Max. :46.60 Max. :8.000 Max. :455.0
##
## horsepower weight acceleration model_year
## Min. : 46.0 Min. :1613 Min. : 8.00 Min. :70.00
## 1st Qu.: 76.0 1st Qu.:2224 1st Qu.:13.82 1st Qu.:73.00
## Median : 92.0 Median :2804 Median :15.50 Median :76.00
## Mean :104.1 Mean :2970 Mean :15.57 Mean :76.01
## 3rd Qu.:125.0 3rd Qu.:3608 3rd Qu.:17.18 3rd Qu.:79.00
## Max. :230.0 Max. :5140 Max. :24.80 Max. :82.00
##
## car_name
## ford pinto : 6
## amc matador : 5
## ford maverick : 5
## toyota corolla: 5
## amc gremlin : 4
## amc hornet : 4
## (Other) :369
You can also embed plots, for example:
Hemos hecho uso de un data frame de autos que contiene 398 muestras de coches y cada uno de ellos tienen 9 varaibles.
Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.