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GitHub Documents

This is an R Markdown format used for publishing markdown documents to GitHub. When you click the Knit button all R code chunks are run and a markdown file (.md) suitable for publishing to GitHub is generated.

Including Code

You can include R code in the document as follows:

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

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.

#Analizy

##Zadanie 1

podsumuj najważniejsze statystyki dotyczące cen sprzedaży nieruchomości w mieście sacramento według ich typu.

dane %>%
  filter(city == 'SACRAMENTO') %>%
  group_by(type) %>%
  summarize(
    średnia = mean(price, na.rm=TRUE),
    mediana = median(price, na.rm=TRUE),
    minimum = min(price),
    maksimum = max(price),
    liczba = n()
  )

## # A tibble: 3 × 6
##   type         średnia mediana minimum maksimum liczba
##   <chr>          <dbl>   <dbl>   <int>    <int>  <int>
## 1 Condo        137691.  110700   40000   360000     27
## 2 Multi-Family 214190.  187290  100000   416767     10
## 3 Residential  201360.  180000   55422   699000    402