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totem
2013 Apr 19
1
How to select the scale parameter for Gabor transform (Rwave)?
...nt frequency resolution but a
disastrous temporal resolution
http://sccn.ucsd.edu/~rapela/scaleSelectionProblem/gtResultSigma200.jpg. To
obtain decent frequency and temporal resolutions I used sigma=10
http://sccn.ucsd.edu/~rapela/scaleSelectionProblem/gtResultSigma10.jpg.
fromTime <- 0
toTime <- 250
by <- 1
ts <- seq(from=fromTime, to=toTime)
f1 <- 0.01
f2 <- 0.05
t1 <- 50
t2 <- 80
K <- 15
fMax <- 0.20
nf <- 100
df <- fMax/(nf/2)
scale <- 10
ys <- sin(2*pi*f1*ts) + sin(2*pi*f2*ts)
ys[t1] <- K...
2014 Oct 07
2
Changing date format
Dear All,
How can I change the format of date of day of the year ? for example r
(i.e. "17 Apr" rather than "108").
The following is the type of the dataset I have
head(Samaru)
Year Start End Length
1 1930 108 288 180
2 1931 118 288 170
3 1932 115 295 180
4 1933 156 294 138
5 1934 116 291 175
6 1935 134 288 154
Any idea is welcome. Thanks!!!