Synopsis
		sfricker1 < in.rsf > out.rsf frequency= freq=0.2 deriv=n

January 2013 program of the month:
http://ahay.org/rsflog/index.php?/archives/318-Program-of-the-month-sfricker1.html

Parameters
		bool deriv=n [y/n] apply a half-order derivative filter   float freq=0.2 peak frequency for Ricker wavelet (as fraction of Nyquist)   float frequency= peak frequency for Ricker wavelet (in Hz)

Used In
		BEI          dpmv/yalei   CWP          geo2006TimeShiftImagingCondition/flat geo2006TimeShiftImagingCondition/icomp geo2007StereographicImagingCondition/flat4 geo2007StereographicImagingCondition/gaus1 geo2007StereographicImagingCondition/sigsbee2 geo2008InterferometricImagingCondition/circle geo2008InterferometricImagingCondition/sact1 geo2008IsotropicAngleDomainElasticRTM/marm2allA geo2008IsotropicAngleDomainElasticRTM/marm2oneA geo2008NumericWEMVAoperators/flatWEMVA geo2008NumericWEMVAoperators/saltWEMVA geo2009TTIModeSeparation/fold geo2009TTIModeSeparation/marmousi2 geo2009TTIModeSeparation/tti3 geo2009VTIModeSeparation/separate2 geo2009VTIModeSeparation/separate3 geo2009VTIModeSeparation/separate5 geo2009VTIModeSeparation/sigsbee geo2011WideAzimuthAngleDecomposition/flatEICangle jse2006RWEImagingOverturningReflections/sigsbee pept2011MicroearthquakeMonitoring/saf1 pept2011MicroearthquakeMonitoring/saf2 pept2011MicroearthquakeMonitoring/saf3   DATA          amoco/fdmod marmousi/fdmod marmousi2/fdMod pluto/fdmod sigsbee/fdmod2A   GEO384W          hw1/wave hw5/sigsbee2   GPGN658          fdmod/exercise rtmig/exercise   HANSUNG          cgg/syn   JSG          attr/attr ffd/anisotropic ffd/bpmodel ffd/bptti ffd/ffd lfd/aniso lfd/bp lfd/bptti lfd/twod lowrank/aniso lowrank/bp lowrank/bptti lowrank/fio lowrank/fowler lowrank/impres lowrank/threed lpf/simon nmo3/azimuthtest reversible/nscnmo seislet/diplet seislet/plane simistack/similarity simistack/simple stackadcig/flat stackadcig/simple timefreq/syn timelapse/long1 timelapse/timelapse   MILANO          taupvel/synth   RSF          bash/plot reprobook/exam1 reprobook/exam3 reprobook/exam4 rsf/plot rsf/sfawefd rsf/sfenvelope rsf/sfwiggle rsf/wedge school/complex school/single school2012/plot scons/rsf su/rsflab5   SEP          fat/green fat/migration findif/vc3   SWAG          anisogath/synth itime/syn tau/arte tau/hess tau/lens tau/marm waveds/fdmod waveds/fdmodnoSS waveds/svmod