NASA Ames Data Format: FFI 2310

Symbols used

X^s		s^th 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 regularly spaced values of X¹ defined by their number, base value and increment.
NX		Number of values of X¹. It is X²-dependent. If NX(m) = 0, there is no record of V_n at the mark X²(m).
X¹(1,m)		First value of X¹ at the mark X²(m). It is X²-dependent.
DX¹		(Regular) interval of X¹. It is X²-dependent.
NV		Number of primary dependent variables
NAUXV		Number of auxiliary dependent variables
V_n		n^th primary variable
A_a		a^th auxiliary variable (depends on X² only — independent of X¹). A₁ = NX (integer). A₂ = X¹(1) A₃ = DX¹ For a > 1, A_a is real.

Condensed notation

[ X²(m)

NX(m)

X¹(1,m)

DX¹(m)

( A_a(m),

a=4,NAUXV ) ]

[ V_n(i,m),

i=1,NX(m) ]

n=1,NV

[Omitted if NX(m) = 0 or if NX(m) = AMISS₁]

Expanded notation

X²(1)	NX(1)	X¹(1,1)	DX¹(1)	A₄(1)	...	A_NAUXV(1)
V₁(1,1)	...	V₁(NX(1),1)						Omitted if NX(1) = 0 or if NX(1) = AMISS₁.
...								Omitted if NX(1) = 0 or if NX(1) = AMISS₁.
V_NV(1,1)	...	V_NV(NX(1),1)						Omitted if NX(1) = 0 or if NX(1) = AMISS₁.
X²(2)	NX(2)	X¹(1,2)	DX¹(2)	A₄(2)	...	A_NAUXV(2)
V₁(1,2)	...	V₁(NX(2),2)						Omitted if NX(2) = 0 or if NX(2) = AMISS₁.
...								Omitted if NX(2) = 0 or if NX(2) = AMISS₁.
V_NV(1,2)	...	V_NV(NX(2),2)						Omitted if NX(2) = 0 or if NX(2) = AMISS₁.
...
X²(m)	NX(m)	X¹(1,m)	DX¹(m)	A₄(m)	...	A_NAUXV(m)
V₁(1,m)	...	V₁(NX(m),m)						Omitted if NX(m) = 0 or if NX(m) = AMISS₁.
...								Omitted if NX(m) = 0 or if NX(m) = AMISS₁.
V_NV(1,m)	...	V_NV(NX(m),m)						Omitted if NX(m) = 0 or if NX(m) = AMISS₁.
...

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