Research Article
Long-Term Precipitation Analysis and Estimation of Precipitation Concentration Index Using Three Support Vector Machine Methods
Table 3
Summary statistics for used data sets.
| (a) |
| | Variables | Training data set | | Min (mm) | Max (mm) | Median (mm) | Mean (mm) | Standard deviation (mm) | Skewness |
| | Annual total precipitation | 503.2 | 914.6 | 648.8 | 659.7 | 90.2 | 0.56 | | Mean winter precipitation amount | 36.4 | 248.1 | 130.5 | 141.0 | 43.5 | 0.07 | | Mean spring precipitation amount | 99.9 | 247.1 | 169.0 | 166.9 | 38.8 | 0.01 | | Mean summer precipitation amount | 80.6 | 335.3 | 203.9 | 198.0 | 59.1 | | | Mean autumn precipitation amount | 63.9 | 266.1 | 148.3 | 153.8 | 50.1 | 0.58 | | Mean of precipitation for vegetable period (April–September) | 203.9 | 516.1 | 369.7 | 369.2 | 77.3 | |
|
|
| (b) |
| | Variables | Testing data set | | Min (mm) | Max (mm) | Median (mm) | Mean (mm) | Standard deviation (mm) | Skewness |
| | Annual total precipitation | 414.8 | 872.0 | 678.3 | 663.9 | 116.9 | | | Mean winter precipitation amount | 46.7 | 216.4 | 131.3 | 141.2 | 43.5 | 0.11 | | Mean spring precipitation amount | 101.4 | 273.3 | 166.0 | 166.0 | 39.5 | 0.60 | | Mean summer precipitation amount | 82.0 | 304.8 | 210.8 | 194.1 | 63.8 | | | Mean autumn precipitation amount | 53.2 | 301.6 | 156.3 | 164.1 | 56.8 | 0.27 | | Mean of precipitation for vegetable period (April–September) | 233.6 | 572.1 | 366.7 | 371.6 | 87.5 | 0.38 |
|
|
