NASA Ames Data Format: FFI 2110

Symbols used

Xs sth independent variable (s = 1 or 2). Its values are real.
X1 is the bounded independent variable, X2 the unbounded independent variable.
To each value of X2 corresponds a different set of values taken by X1 (the grid is not orthogonal).
NX Number of values of X1. It is X2-dependent.
If NX(m) = 0, there is no record of X1 and Vn at the mark X2(m).
NV Number of primary dependent variables
NAUXV Number of auxiliary dependent variables
Vn nth primary variable
Aa ath auxiliary variable (depends on X2 only — independent of X1).
A1 = NX (integer).
For a > 1, Aa is real.

Condensed notation

[ X2(m) NX(m) ( Aa(m), a=2,NAUXV ) ]
[ X1(i,m) ( Vn(i,m), n=1,NV ) ] i=1,NX(m) Omitted if NX(m) = 0 or if NX(m) = AMISS1.

Expanded notation

X2(1) NX(1) A2(1) ... ANAUXV(1)
X1(1,1) V1(1,1) ... VNV(1,1) Omitted if NX(1) = 0 or if NX(1) = AMISS1.
... Omitted if NX(1) = 0 or if NX(1) = AMISS1.
X1(NX(1),1) V1(NX(1),1) ... VNV(NX(1),1) Omitted if NX(1) = 0 or if NX(1) = AMISS1.
X2(2) NX(2) A2(2) ... ANAUXV(2)
X1(1,2) V1(1,2) ... VNV(1,2) Omitted if NX(2) = 0 or if NX(2) = AMISS1.
... Omitted if NX(2) = 0 or if NX(2) = AMISS1.
X1(NX(2),2) V1(NX(2),2) ... VNV(NX(2),2) Omitted if NX(2) = 0 or if NX(2) = AMISS1.
...
X2(m) NX(m) A2(m) ... ANAUXV(m)
X1(1,m) V1(1,m) ... VNV(1,m) Omitted if NX(m) = 0 or if NX(m) = AMISS1.
... Omitted if NX(m) = 0 or if NX(m) = AMISS1.
X1(NX(m),m) V1(NX(m),m) ... VNV(NX(m),m) Omitted if NX(m) = 0 or if NX(m) = AMISS1.
...

Back to FFI Summary.