Random Sampling
Feature Description
Random Sampling
Parameter Description
| Parameter | Default Value | Description | Type |
|---|---|---|---|
| Source Dataset | Source dataset | Dataset | |
| Sampling Extent Dataset (Optional) |
Specified sampling extent dataset. Interface for inputting extent dataset and stratified dataset | DatasetVector | |
| Reporting Unit Dataset (Optional) |
Specified reporting unit dataset. Unit dataset used for sandwich random sampling | DatasetVector | |
| Target Datasource | Specified datasource for storing result dataset | Datasource | |
| Resulting Dataset Name | Specified result dataset name | String | |
| Random Sampling Type | SIMPLERANDOMSAMPLING | Specified random sampling type | RandomSamplingType |
| Use Proportional Value | false | Determines whether to use proportional value. Two value types available: scale value and proportional value | Boolean |
| Resolution (Optional) |
0.0 | Specified sampling resolution. For vector basemaps, the sampling process requires grid-based processing to obtain sampling space (each grid cell represents a potential sampling unit). Sampling resolution defines the width of each minimum grid cell | Double |
| Sampling Amplification Ratio | 0.0 | Specified sampling amplification ratio. The actual sample size equals theoretical value multiplied by this percentage. Used to compensate for potential sample loss or unavailability | Double |
| Spatial Correlation Coefficient (Optional) |
0.0 | Specified spatial correlation coefficient | Double |
| Sample Size Calculation Function Type | FUNCTIONSCALEA | Specified sample size calculation function type | SamplingFunctionType |
| Population Variance (Optional) |
0.0 | Specified population variance | Double |
| Expected Variance (Optional) |
0.0 | Specified expected variance | Double |
| Absolute Error (Optional) |
0.0 | Specified absolute error | Double |
| Confidence Interval Parameter Alpha (Optional) |
0.0 | Specified confidence interval parameter alpha | Double |
| Initial Iteration Sample Size (Optional) |
0 | Specified initial iteration sample size | Integer |
| Relative Error (Optional) |
0.0 | Specified relative error | Double |
| Pre-sampling Mean (Optional) |
0.0 | Specified pre-sampling mean | Double |
| Coefficient of Variation (Optional) |
0.0 | Specified coefficient of variation | Double |
| Pre-sampling Variance (Optional) |
0.0 | Specified pre-sampling variance | Double |
| Pre-sampling Sample Size (Optional) |
0 | Specified pre-sampling sample size | Integer |
| Target Population Proportion (Optional) |
0.0 | Specified target population proportion | Double |
| Pre-sampling Target Proportion (Optional) |
0.0 | Specified pre-sampling target proportion | Double |
| Unknown Cost (Optional) |
false | Determines whether cost is unknown | Boolean |
| Total Cost (Optional) |
0.0 | Specified total cost | Double |
| Initial Cost (Optional) |
0.0 | Specified initial cost | Double |
| Stratum Variance Field Name (Optional) |
Specified stratum variance field name | String | |
| Stratum Cost Field Name (Optional) |
Specified stratum cost field name | String | |
| Stratified Proportion Field Name (Optional) |
Specified stratified proportion field name | String |
Output
| Parameter | Description | Type |
|---|---|---|
| Result Dataset | Result dataset | DatasetVector |