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From: us on 22 Apr 2010 10:48 "Ali Y." > > a hint: > > - look at your data... > > > > i2=2; > > b(i2-1):b(i2+1) > > % ans = Empty matrix: 1-by-0 > > > > us > > Hi us, thanks for your reply, but it doesn't work, i have already tried it before like > >>YI=interp((a(i2-1):0.1:a(i2+1)),(b(i2-1):-0.1:b(i2+1)),XI); well, YES - of course does it not work as i've tried to show you... the second input to INTERP is empty(!), which is not well taken by the function... % if the ANS = [], then interp(1,[],10) %{ ??? Operands to the || and && operators must be convertible to logical scalar values. Error in ==> interp at 44 if l < 1 || r < 1 || cutoff <= 0 || cutoff > 1 %} us
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