Hi, I'm using the kriging analysis tool in ArcMap (10.7.1) to be able to export the semivariogram graph values. For the analysis, I'm using ordinary kriging, Box-Cox transformation type with no trend, and the exponential mathematical model. I want to understand the equation behind this model and I'm confused about how to interpret the equation that appears below the semivariogram (attached below). Going through the documentation I found this web page: https://pro.arcgis.com/en/pro-app/latest/tool-reference/3d-analyst/how-kriging-works.htm . There I saw the equation that is used for the exponential model, but when calculating the y-axis values using the model equation I do not obtain the same results that I exported from ArcMap. I want to know as I'm trying to graph the values obtained but with the distance in kilometers (which I can convert from degrees to km) but to get the y-axis values for the model I want to compute them using the model equation. I will appreciate any insight or help.
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I am using for most of my research analyses ArcGIS Pro (2.6), but as in it I can't export the semivariogram graph (within the kriging analysis) values, I performed the kriging analysis in ArcMap (10.7.1) to export the semivariogram graph values. Even though I used the same dataset and the exact same specifications (as ordinary kriging, Box-Cox transformation type with no trend) there are discrepancies in the graph x-axis and y-axis. As in the attached pictures can be observed that for the semivariogram graph from ArcGIS Pro the x-axis is "Distance (10^(-1) degrees)" and the y-axis is "y (10^5)". While for the semivariogram graph from ArcMap the x-axis is "Distance (10^(1) degrees)" and the y-axis is "y (10^-5)". Other than that both graphs and the numbers in the axis are the same no matter if I use ArcGIS Pro or ArcMap. My concern is that for my analysis is important to know which is the correct order of magnitude from the values of both axes. I plotted the values from the exported values (exported values are the 1st and 3rd columns, the 2nd and 4th columns are the values adjusted to the order of magnitude in the graph) and also attached a picture of the graph.
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