I have a point shapefile that has a 'rank' attribute with numbers between 0-100. I need to calculate the sum of this value for points within a 10km circular moving window anywhere within my area of interest. The result would be a raster, where each pixel represents the sum value of the ranks taken from all point features within a 10km radius. In ArcGIS, I could do this using the Point Statistics tool. Is there a way of doing this in QGIS?