Dear ferret users I have 361*292*75*73 data I want to save it after set my region let sayirc=uvel[x=40E:110E,y=20S:30N] I am trying to save it with the following commands but I am not able to save my data please tell me how I can save this data sets in a single nc fileave/l=1:20/FILE=at.nc uvelssave/l=21:40/FILE=at.nc/append uvelssave/l=21:50/FILE=at.nc/append uvelssave/l=51:73/FILE=at.nc/append uvelsI got this error**ERROR in external function: Segmentation Violation**ERROR: error in external functionplease tell me how I can save my data.