once you have completed the preparation of the patches you simply start matlab and move to your working directory
then you type getparm to see if all parameters are loaded correctly and proceed with stamps(1,1)
mt_prep_gamma was the one initially to be used, but it did not work for Sentinel-1 data very well.
Therefore, they released a second one (mt_prep_snap) at a later time which should be used now.
I recommend, creating a new work folder and running this script in there again. The files exported from SNAP can be maintained.
w and u are not the most important plotting options. If you want to measure surface deformation, you need v, at best in combination with d and o.
The ts option also allows you to plot the displacement of a selected area.
It depends on your research question how you want to to analyze the results.
Extract from the manual
'w' for wrapped phase
'w-d' for wrapped phase minus smoothed dem error
'w-o' for wrapped phase minus orbital ramps ('w-dm', 'w-do', 'w-dmo')
'p' for spatially filtered wrapped phase
'u' for unwrapped phase
'u-d' for unwrapped phase minus dem error
'u-m' for unwrapped phase minus and master AOE
'u-o' for unwrapped phase minus orbital ramps
'u-a' for unwrapped phase minus topo-correlated atmosphere
('u-dm', 'u-do', 'u-da', 'u-dmo', 'u-dma', 'u-dms', 'u-dmao', 'u-dmos')
'usb' for unwrapped phase of small baseline ifgs
('usb-d', 'usb-o', 'usb-a' also 'usb-do','usb-da', 'usb-dao')
'rsb' residual between unwrapped phase of sb ifgs and inverted
'd' for spatially correlated DEM error (rad/m)
'm' for AOE phase due to master
'o' for orbital ramps
's' for atmosphere and orbit error (AOE) phase due to slave
'v' mean LOS velocity (MLV) in mm/yr ('v-d', 'v-o', 'v-a', 'v-do,
'v-da', 'v-dao')
'vs' standard deviation of MLV (mm/yr) ('vs-d', 'vs-o', also 'vs-do')
'vdrop' MLV calculated from all but current ifg (mm/yr)
'vdrop-d'
'vdrop-o' (also 'vdrop-do')
MATLAB needs to know the folder where the stamps scripts are located. You can do this in the GUI (by adding this directory to the list of folders by clicking on “Set Path”.