Program sfinstattr | Estimate of instantaneous attributes. 
[SYNOPSIS]
sfinstattr < in.rsf > out.rsf order=10 ref=1. hertz=y hires=n der2=n verb=n type=
[PARAMETERS]
bool    | der2 | =n |  [y/n] | 	if y, compute 2nd-order derivative to use with hires=y 
bool    | hertz | =y |  [y/n] | 	if y, convert output to Hertz 
bool    | hires | =n |  [y/n] | 	if y, compute high resolution instantaneous attributes 
int     | order | =10 |   | 	Hilbert transformer order 
float   | ref | =1. |   | 	Hilbert transformer reference (0.5 < ref <= 1) 
string  | type | = |   | 	[amplitude,phase,frequency] attribute type, the default is amplitude 
bool    | verb | =n |  [y/n] | 	verbosity flag 
[DIRECTORY]
user/yliu
