Displaying 2 results from an estimated 2 matches for "vysl".
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vys
2010 Apr 03
0
smoothing with sapa package and decibel function
...y <- lapply(S,function(x) decibel(as.vector(x)[-1]))
which works fine, but if I use some taper, e.g.
S=SDF(data, method="lag window",
taper.=taper(type="hamming",n.sample=length(data)))
that produces negative values, the decibel() function expectantly throws
error.
f=attr(vysl,"frequency")[-1]
s=decibel(as.vector(S)[-1])
Error in decibel(as.vector(vysl)[-1]) : cannot convert negative values to
decibels
Is it possible to use some other function than decibel, or how else can
estimate spec.density with tapers from this package?
Thank you very much.
[[alternati...
2003 Dec 22
2
error propagation - hope it is correct subject
Dear all
Please, can you advice me how to compute an error, standard deviation or
another measure of variability of computed value.
I would like to do something like:
var(y) = some.function(var(x1),var(x2),var(x3))
for level F1 (2,3,...)
Let say I have some variables - x1, x2, x3 (two computed for levels of factor F
and one which is same for all levels) and I want to compute
y =