Hi, i am resending this email as my previous email was too big. I am trying to krige particle size at a given elevation for some borehole information, see log sheet below I have tried IDW which provide an interpolation over the defined extent. I would like to use kriging however, when it takes probably 20 to 30 min to run using ordinary kriking, or a few min with simple kriging, and the resulting interpolation in both cases are limited to approx 1000 m from the data points. I presume that this is due to the search radius of 1km. This data set is only 700 points and shouldn't be that complicated to krig. The range of the interpolation also is out of range of the data points. I am not sure what I am doing wrong..
SEE log sheet below Processing algorithm… Algorithm 'Simple kriging' starting… Input parameters: { 'BLOCK' : False, 'DBLOCK' : 100, 'FIELD' : 'ParticleSize', 'LOG' : False, 'POINTS' : 'C:/Users/Francois Chartier/Documents/GeoModel/Intervals/130.gpkg|layername=130', 'PREDICTION' : 'C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/5906333ae6674718b7180ff8a8166ac2/PREDICTION.sdat', 'SEARCH_DIRECTION' : 0, 'SEARCH_POINTS_ALL' : 0, 'SEARCH_POINTS_MAX' : 20, 'SEARCH_POINTS_MIN' : 16, 'SEARCH_RADIUS' : 1000, 'SEARCH_RANGE' : 0, 'TARGET_TEMPLATE' : None, 'TARGET_USER_FITS' : 0, 'TARGET_USER_SIZE' : 100, 'TARGET_USER_XMIN TARGET_USER_XMAX TARGET_USER_YMIN TARGET_USER_YMAX' : '651700, 609200, 4862000, 4825700', 'TQUALITY' : 0, 'VARIANCE' : 'C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/30e93e365de34177a512d28cd8414007/VARIANCE.sdat', 'VAR_MAXDIST' : -1, 'VAR_MODEL' : 'a + b * x', 'VAR_NCLASSES' : 100, 'VAR_NSKIP' : 1 } statistics_kriging "Simple Kriging" -TARGET_DEFINITION 0 -POINTS "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/9c11d34a631749ec91b9206a6a513f7c/POINTS.shp" -FIELD "ParticleSize" -TQUALITY 0 -LOG false -BLOCK false -DBLOCK 100.0 -VAR_MAXDIST -1.0 -VAR_NCLASSES 100 -VAR_NSKIP 1 -VAR_MODEL "a + b * x" -TARGET_USER_XMIN 609200.0 -TARGET_USER_XMAX 651700.0 -TARGET_USER_YMIN 4825700.0 -TARGET_USER_YMAX 4862000.0 -TARGET_USER_SIZE 100.0 -TARGET_USER_FITS 0 -SEARCH_RANGE 0 -SEARCH_RADIUS 1000.0 -SEARCH_POINTS_ALL 0 -SEARCH_POINTS_MIN 16 -SEARCH_POINTS_MAX 20 -SEARCH_DIRECTION 0 -PREDICTION "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/5906333ae6674718b7180ff8a8166ac2/PREDICTION.sdat" -VARIANCE "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/30e93e365de34177a512d28cd8414007/VARIANCE.sdat" C:\PROGRA~1\QGIS3~1.4\bin>set SAGA=C:/PROGRA~1/QGIS3~1.4/apps\saga-ltr C:\PROGRA~1\QGIS3~1.4\bin>set SAGA_MLB=C:/PROGRA~1/QGIS3~1.4/apps\saga-ltr\modules C:\PROGRA~1\QGIS3~1.4\bin>PATH=C:\PROGRA~1\QGIS3~1.4\apps\qgis\bin;C:\PROGRA~1\QGIS3~1.4\apps\grass\grass-7.4.2\lib;C:\PROGRA~1\QGIS3~1.4\apps\grass\grass-7.4.2\bin;C:\PROGRA~1\QGIS3~1.4\apps\Python37;C:\PROGRA~1\QGIS3~1.4\apps\Python37\Scripts;C:\PROGRA~1\QGIS3~1.4\apps\qt5\bin;C:\PROGRA~1\QGIS3~1.4\apps\Python27\Scripts;C:\PROGRA~1\QGIS3~1.4\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\system32\WBem;C:\PROGRA~1\QGIS3~1.4\apps\Python37\lib\site-packages\pywin32_system32;C:\PROGRA~1\QGIS3~1.4\apps\Python37\lib\site-packages\numpy\.libs;C:/PROGRA~1/QGIS3~1.4/apps\saga-ltr;C:/PROGRA~1/QGIS3~1.4/apps\saga-ltr\modules C:\PROGRA~1\QGIS3~1.4\bin>saga_cmd statistics_kriging "Simple Kriging" -TARGET_DEFINITION 0 -POINTS "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/9c11d34a631749ec91b9206a6a513f7c/POINTS.shp" -FIELD "ParticleSize" -TQUALITY 0 -LOG false -BLOCK false -DBLOCK 100.0 -VAR_MAXDIST -1.0 -VAR_NCLASSES 100 -VAR_NSKIP 1 -VAR_MODEL "a + b * x" -TARGET_USER_XMIN 609200.0 -TARGET_USER_XMAX 651700.0 -TARGET_USER_YMIN 4825700.0 -TARGET_USER_YMAX 4862000.0 -TARGET_USER_SIZE 100.0 -TARGET_USER_FITS 0 -SEARCH_RANGE 0 -SEARCH_RADIUS 1000.0 -SEARCH_POINTS_ALL 0 -SEARCH_POINTS_MIN 16 -SEARCH_POINTS_MAX 20 -SEARCH_DIRECTION 0 -PREDICTION "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/5906333ae6674718b7180ff8a8166ac2/PREDICTION.sdat" -VARIANCE "C:/Users/Francois Chartier/AppData/Local/Temp/processing_ec36cad732be463eb755fc7f6e89232f/30e93e365de34177a512d28cd8414007/VARIANCE.sdat" ____________________________ ##### ## ##### ## ### ### ## ### ### # ## ## #### # ## ### ##### ## # ##### ##### # ## ##### # ## ____________________________ SAGA Version: 2.3.2 (64 bit) ____________________________ library path: C:\PROGRA~1\QGIS3~1.4\apps\saga-ltr\modules\ library name: statistics_kriging library : Kriging tool : Simple Kriging author : O.Conrad (c) 2015 processors : 4 [4] ____________________________ Parameters Points: POINTS Attribute: fid Type of Quality Measure: standard deviation Logarithmic Transformation: no Block Kriging: no Maximum Distance: -1.000000 Lag Distance Classes: 100 Skip: 1 Model: a + b * x Target Grid System: user defined Cellsize: 100.000000 Left: 609200.000000 Right: 651700.000000 Bottom: 4825700.000000 Top: 4862000.000000 Fit: nodes Search Range: local Maximum Search Distance: 1000.000000 Number of Points: maximum number of nearest points Minimum: 16 Maximum: 20 Direction: all directions a = 39510.6 b = 0.973903 Loading resulting layers Algorithm 'Simple kriging' finished
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