To investigate all values, summary statistics table of the dataset is printed below. Minimal value of price seems to be outlier as it is more than 20 times smaller than 25% quantile. The mean price is approximately 17% larger than median, indicating strong influence of large value observations. Regarding the area, the observation with minimal value has the same properties as the price as it is same polygon. The increase is much steeper, as the mean area is 2.31 times larger than the median. When investigating the distances, the smallest value with almost 5 meters is the minimal value of the nearest bus distance. Such small value does not seem to be realistic, however it is a payoff for the way how the distances were calculated. For the maximal values of distances, it can be observed that some areas are disconnected to the rail modes as the highest distance for metro, train and tram are not in walk-able radius. Overall, the variables will be further analysed in following sections, taking spatial properties into consideration.
Sumarry statistics of the dataset
| Price (CZK/sq. m) | Area (sq. m) | Dist. Bus (m) | Dist. Metro (m) | Dist. Train (m) | Dist. Tram (m) | |
|---|---|---|---|---|---|---|
| Min. | 230 | 499 | 4.917 | 27.07 | 58.66 | 14.58 |
| 1st Qu. | 5030 | 5617 | 122.926 | 626.03 | 810.33 | 249.34 |
| Median | 6780 | 11920 | 188.842 | 1329.31 | 1295.79 | 610.09 |
| Mean | 7959 | 27541 | 219.475 | 1749.88 | 1491.61 | 1386.76 |
| 3rd Qu. | 8830 | 26695 | 276.757 | 2459.98 | 1862.38 | 2041.12 |
| Max. | 70310 | 625235 | 1167.930 | 8994.61 | 7533.05 | 9558.25 |