Displaying 3 results from an estimated 3 matches for "difftimedate".
2009 Jan 27
2
Can I create a timeDate object using only year and week of the year values?
...resent).
What I have found so far includes:
library(Rmetrics)
time1 = timeDate(charvec = Sys.Date(), format = "%Y-%m-%d", zone = "",
FinCenter = "")
time2 = timeDate("2004-08-30", format = "%Y-%m-%d", zone = "", FinCenter =
"")
difftimeDate(time1,time2,units = "weeks")
Does timeDate use the format strings used by the UNIX date(1) command? If
so, then can I safely assume timeDate will accept "%Y-%U-%w", and behave
correctly?
Thanks,
Ted
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2009 Jan 27
1
Mystery Error in midnightStandard
...r (i in 1:length(V4) ) {
x = read.csv(as.character(V4[[i]]), header = FALSE, na.strings="");
y = x[,1];
year = V2[[i]];
week = V3[[i]];
dtstr = sprintf("%i-%i-%i",year,week,dow);
date2 = timeDate(dtstr, format = "%Y-%U-%w");
resultsdataframe$dt[[i]] <- difftimeDate(date1,date2,units = "weeks");
fp = fitdistr(y,"exponential");
print(c(V1[[i]],V2[[i]],V3[[i]],fp$estimate,fp$sd));
print(c(year,week,date2,resultsdataframe$dt[[i]]));
resultsdataframe$estimate[[i]] <- fp$estimate;
resultsdataframe$sd[[i]] <- fp$sd;
}
It fails wi...
2009 Jan 28
2
t.test in a loop
Hi All,
I've been having a little trouble with creating a loop that will run a a
series of t.tests for inspection,
Below is the code i've tried, and some checks i've looked at.
I've used the get(paste()) idea as i was told previously that the use of the
eval should try and be avoided.
I've run a single syntax to check that my systax is correct and works
without any problems