I have been using the zonal statistics tool to quantify the variability of slopes around archaeological sites.
I have noticed in some experiments that there are differences between the mean and the median of the values within the polygons that I use. We want to use the mean slope to calculate biomechanical indices in burials of each of the polygons.
Since there is a difference between the mean and the median of each polygon, it can indicate that there is no normal distribution in the slope values sampled. In that sense, using the mean and the standard deviation would be somewhat misleading.
Is there any way to calculate the interquartile range of the values of the pixels inside a polygon? I am using QGIS 3.6 on Windows 10 with 32 GB of RAM.