Synopsis
		sfnoise < in.rsf > out.rsf seed=time(NULL) type=y var= range= mean=0 rep=n

July 2011 program of the month:
http://ahay.org/rsflog/index.php?/archives/262-Program-of-the-month-sfnoise.html

Parameters
		float mean=0 noise mean   float range= noise range (default=1)   bool rep=n [y/n] if y, replace data with noise   int seed=time(NULL) random seed   bool type=y [y/n] noise distribution, y: normal, n: uniform   float var= noise variance

Used In
		BEI          ft1/autocor   CHEN          test/xtime   CWP          geo2008InterferometricImagingCondition/circle geo2008InterferometricImagingCondition/sact1 geo2009TTIModeSeparation/fold pept2011MicroearthquakeMonitoring/saf1 pept2011MicroearthquakeMonitoring/saf3   GEE          lsq/puck mda/geostat mda/morgan pch/signoi   GEO384W          hw3/synth hw4/synth   GEO391          hw2/sorting hw5/seabeam   GEOSTATS          simulate/rfield simulate/simple spatial_stats/correlogram spatial_stats/covariance spatial_stats/gr_variogram spatial_stats/variogram   HANSUNG          cgg/syn   JSG          apefint/misscurv apefint/missing atten/enerd atten/karman1 atten/spectra avo/avo avo/stat diffr/fault diffr/gom fpwd/const lowrank/fio lpf/regr nmo3/azimuthtest oc3/fault oc3/french oc3/frenchint pmig/mig reversible/nscnmo seislet/diplet seislet/gath seislet/plane seislet/sin2 shape/lomo simistack/flat4 simistack/similarity simistack/simple stackadcig/flat stackadcig/simple strfilter/spray timefreq/syn timelapse/long1 vc3/fracs vc3/threedim   MILANO          taupvel/synth   RSF          reprobook/exam3 rsf/plot rsf/sfdots rsf/sfnoise rsf/sfwiggle rsf/unif3 school/clip_test school/complex school/single school2009/local scons/rsf scons/rsfpy su/rsfplane   SEP          bspl/bintest fmeiko/tri fractal/random lines/randline plane/qint pwd/lomo pwd/signoi pyramid/pyramid spitz/sign texture/fft   SLIM          geo2008NewInsightsPareto/pareto slimUserManual/sffdct slimUserManual/sfsort slimUserManual/sfthr   SWAG          itime/syn   TUTORIAL          authors/data