>Psychtoolbox>PsychOneliners

vect = SmartVec(start,slength,step,mode)
makes sequence that satisfies certain conditions.

START is a scalar or vector with starting values of an sequence
SLENGTH is a scalar or vector (with the same length as START) and
indicates the length of all sequences or the length of the
corresponding sequence in START.
STEP is optional and indicates the stepsize of the series. Default is 1
STEP can be a scalar and indicate the stepsize for all segments, or it
can be the same lenght as START if you want to provide a different
stepsize for each segment
MODE is optional and has two options:
‘neg’ : the produced sequence will satisfy : diff([n n+1]) = -1
‘flat’ : the produced sequence will satisfy : diff([n n+1]) = 0
if no mode, the produced sequence will satisfy : diff([n n+1]) = 1
MODE can be the third input to the function if you do not wish to
override the default stepsize

examples:
SmartVec([1 5],3)
ans =
1 2 3 5 6 7
SmartVec([1 5],[3 5])
ans =
1 2 3 5 6 7 8 9
SmartVec([1 5],[3 5],’neg’)
ans =
1 0 -1 5 4 3 2 1
SmartVec([1 5],[3 5],2,’neg’)
ans =
1 -1 -3 5 3 1 -1 -3
SmartVec([1 5],3,’neg’)
ans =
1 0 -1 5 4 3
SmartVec([1 5],[3 5],’flat’)
ans =
1 1 1 5 5 5 5 5
SmartVec([1 5],3,’flat’)
ans =
1 1 1 5 5 5