Tool Evaluate Statistics for Grids
Calculates statistical properties (arithmetic mean, range, variance, standard deviation, percentiles) on a cell-wise base. This tool takes input about basic statistical information as it can be collected with the 'Build/Add Statistics for Grids' tools. These three tools (build, add, evaluate) have been designed to inspect a large number of grids that could otherwise not be evaluated simultaneously due to memory restrictions.
- Author: O.Conrad (c) 2018
- Menu: Spatial and Geostatistics|Grids|Massive Data Analysis
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Number of Values (*) | Grid (optional input) | COUNT | - | - |
| Sum (*) | Grid (optional input) | SUM | - | - |
| Sum of Squares (*) | Grid (optional input) | SUM2 | - | - |
| Minimum (*) | Grid (optional input) | MIN | - | - |
| Maximum (*) | Grid (optional input) | MAX | - | - |
| Histogram (*) | Grids (optional input) | HISTOGRAM | - | - |
| Output | Range | Grid (output) | RANGE | - | - |
| Arithmetic Mean | Grid (output) | MEAN | - | - |
| Variance | Grid (output) | VAR | - | - |
| Standard Deviation | Grid (output) | STDDEV | - | - |
| Percentiles (*) | Grid list (optional output) | QUANTILES | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Percentiles | Text | QUANTVALS | Separate the desired percentiles by semicolon | Default: 5; 25; 50; 75; 95 |
| (*) optional |
Command-line
Usage: saga_cmd statistics_grid 18 [-COUNT <str>] [-SUM <str>] [-SUM2 <str>] [-MIN <str>] [-MAX <str>] [-HISTOGRAM <str>] [-RANGE <str>] [-MEAN <str>] [-VAR <str>] [-STDDEV <str>] [-QUANTILES <str>] [-QUANTVALS <str>]
-COUNT:<str> Number of Values
Grid (optional input)
-SUM:<str> Sum
Grid (optional input)
-SUM2:<str> Sum of Squares
Grid (optional input)
-MIN:<str> Minimum
Grid (optional input)
-MAX:<str> Maximum
Grid (optional input)
-HISTOGRAM:<str> Histogram
Grids (optional input)
-RANGE:<str> Range
Grid (output)
-MEAN:<str> Arithmetic Mean
Grid (output)
-VAR:<str> Variance
Grid (output)
-STDDEV:<str> Standard Deviation
Grid (output)
-QUANTILES:<str> Percentiles
Grid list (optional output)
-QUANTVALS:<str> Percentiles
Text
Default: 5; 25; 50; 75; 95