Nothing
`ReadSet.Instr` <-
function(file)
{
## cmd = paste(sep=" ","cat ", file)
## INSTF = system(cmd, intern=TRUE)
if(length(file)==1 & file.exists(file[1]) )
{
ACON = file(description=file, open = "r")
INSTF = readLines(con = ACON, n = -1, ok = TRUE, warn = TRUE)
close(ACON)
}
else
{
##### here the input is a vector of character strings
INSTF =file
if(length(INSTF)<2)
{
warning('ERROR: ReadSet.Instr, no poles and zeros in character string')
return(NULL)
}
}
COMMENTS = NA
First.Char = substr(INSTF, 1, 1)
W.char = which(First.Char=='#')
if(length(W.char) >0)
{
COMMENTS = INSTF[W.char]
INSTF = INSTF[-W.char]
}
i.zeros = 1
i.zeros = grep('ZEROS', INSTF)
i.poles = grep('POLES', INSTF)
poles = NULL
zeros = NULL
Knorm = NULL
Sense = NULL
nz=0
np=0
#### read in the zeros
a = unlist(strsplit(INSTF[i.zeros],split=' '))
nz = as.numeric(a[2])
if(nz>0)
{
zeros = vector(length=nz, mode="complex")
for( i in 1:nz)
{
a = unlist(strsplit(INSTF[i.zeros+i],split='\\ '))
a = a[a!=""]
zeros[i] = complex(real=as.numeric(a[1]), imaginary=as.numeric(a[2]))
}
}
# ip= 1+nz+1
##### read in the poles
ip= i.poles
a = unlist(strsplit(INSTF[ip],split=' '))
np = as.numeric(a[2])
if(np>0)
{
poles = vector(length=np, mode="complex")
for( i in 1:np)
{
a = unlist(strsplit(INSTF[ip+i],split='\\ '))
a = a[a!=""]
poles[i] = complex(real=as.numeric(a[1]), imaginary=as.numeric(a[2]))
}
}
ip= np+nz+2+1
i.K = grep('CONSTANT', INSTF)
i.SENSE = grep('SENSE', INSTF)
a = unlist(strsplit(INSTF[i.K],split=' '))
Knorm = as.numeric(a[2])
ip= ip+1
a = unlist(strsplit(INSTF[i.SENSE],split=' '))
Sense = as.numeric(a[2])
return(list(np=np, poles=poles, nz=nz, zeros=zeros, Knorm=Knorm, Sense=Sense, Comments=COMMENTS))
}
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