<put algortithm description here>
Input layer
[raster]Band number
[number]<put parameter description here>
Default: 1
Compute edges
[boolean]<put parameter description here>
Default: False
Use Zevenbergen&Thorne formula (instead of the Horn's one)
[boolean]<put parameter description here>
Default: False
Slope expressed as percent (instead of degrees)
[boolean]<put parameter description here>
Default: False
Scale (ratio of vert. units to horiz.)
[number]<put parameter description here>
Default: 1.0
Output file
[raster]processing.runalg('gdalogr:slope', input, band, compute_edges, zevenbergen, as_percent, scale, output)