Displaying 2 results from an estimated 2 matches for "assumning".
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assuming
2006 Jan 13
1
first derivative of a time series
...of values, each line is a different time step
ts.table <- read.table("timeseries.1d")
ts.values <- ts.table[,1]
## first calculate coefficients to pass to coefDeriv
ts.coef <- coefFit(ts.values)
d.ts <- coefDeriv(ts.coef)
-------
However, when I try to look at d.ts$y.deriv, assumning that this will plot the
derivative I want, all the numbers are huge (on the order of e+02 to e+08) when
my original time series ranged from 0 to 970. Am I going about this the wrong
way? Or are there other tools that would lead me to estimating the derivative
of a time series?
Thanks in advance fo...
2006 Jul 29
9
export to a CSV or XLS file
hello everyone,
Any idea how can i export a resultset from a database to a CSV or XLS
file from the application ? would like the user to have the option to
export selected data to a CSV/XLS file.
Any plugins or libraries avaiable to accomplish this ?
Thanks for your time,
VASU.
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