| Hi to all. In ferret, you can can construct a variable variable from scratch with something like A=I[I=1:5] : yes? LIST I[I=1:5] VARIABLE : I axis ABSTRACT SUBSET : 5 points (X) 1 / 1: 1.000 2 / 2: 2.000 3 / 3: 3.000 4 / 4: 4.000 5 / 5: 5.000 You can limit the range : yes? LIST I[I=3:5] VARIABLE : I axis ABSTRACT SUBSET : 3 points (X) 3 / 3: 3.000 4 / 4: 4.000 5 / 5: 5.000 But you can not extend before zero : yes? LIST I[I=0:5] VARIABLE : I axis ABSTRACT SUBSET : 5 points (X) 1 / 1: 1.000 2 / 2: 2.000 3 / 3: 3.000 4 / 4: 4.000 5 / 5: 5.000 Neither can you skip values : yes? LIST I[I=1:6:2] VARIABLE : I axis (AX004) SUBSET : 3 points (X) 1 / 1: 1.000 3 / 2: 2.000 5 / 3: 3.000 Of course, we got an obvious and simple solution to construct these variables : yes? LIST 2*I[I=1:4]-2 VARIABLE : 2*I[I=1:4]-2 SUBSET : 4 points (X) 1 / 1: 0.000 2 / 2: 2.000 3 / 3: 4.000 4 / 4: 6.000 But we could have simpler and clearer scripts if the _expression_ I[0:6:2] could give directly this result. Best regards, Olivier — Olivier Marti - LSCE Bât 714 p. 1049 MERMAID Team Normal situation : +33 1 69 08 77 27 Corona lockdown : +33 6 45 36 43 74 |
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