I'm trying to reclassify a slope layer into four or five categories. r.reclass won't work for me (see Execution Failed error running r.reclass) so I have been trying an alternative method - 'reclassify by table'. I can get it to run but every time I do it, I get an output that doesn't seem right.
The slope output from QGIS is good (see picture), but the reclassification results in something very 'bitsy' and largely homogenous (see picture) instead of what I expect (and what I am after!) which is four/five distinct categories.
Am I missing something obvious here or is there a trick to this I don't know?
I've played around with the symbology to try and match them fairly closely - and yet the result is wildly different.
I want to have zones of slope category (low/med/high/v.high etc) that I can convert to polygons later if I wish.
Drawing polygons by hand is horrendously time consuming and clearly not an ideal solution.