search for: timeperiod

...riable, I want to produce a boxplot and include the name of the variable (ie, column name) on each plot. I have included a sample dataset below. Can someone tell me where I am going wrong? Thank you for your help, Shawn Morrison # Generate a sample dataset var1 = rnorm(1000) var2 = rnorm(1000) TimePeriod = rep((LETTERS[1:4]), 250) my.data = as.data.frame(cbind(var1, var2, TimePeriod)); summary(my.data) attach(my.data) # Create box plots for var1 and var2 using TimePeriod on the x-axis lapply(my.data[,1:2], function(y) { boxplot(y~TimePeriod, main = y data =...

Hello, I'm trying to create a custom function that "mean-centers" data and can be applied across many columns. Here is an example dataset, which is similar to my dataset: *Location,TimePeriod,Units,AveragePrice* Los Angeles,5/1/11,61,5.42 Los Angeles,5/8/11,49,4.69 Los Angeles,5/15/11,40,5.05 New York,5/1/11,259,6.4 New York,5/8/11,187,5.3 New York,5/15/11,177,5.7 Paris,5/1/11,672,6.26 Paris,5/8/11,514,5.3 Paris,5/15/11,455,5.2 I want to mean-center the "Units" and "Aver...

...cript every day. But to my disappointement variables set in an included script do not exist in the original script... In fact what I want to achieve is that some actions like forwarding or vacation messages are performed from a certain date untill another date. Which would allow a user to define a timeperiod in which the autoreply or forward should be done and automatically stop without updating the sieve script again. Comparing start and stopdate is cake, but just getting today's date seems to be a hassle, any ideas? regards, bart

...nd beta estimation (Dimson, 1979; Scholes & Williams, 1977). I looked for add-ins which do address this topic, but i couldn't find any. I have to calculated daily returns from the daily colsing stock prices. Afterwards I want to estimate the alphas and betas of the market model for a given timeperiod. Then I calculate abnormal returns and CAR's and assess their significance (event study methodology with the market model). Does someone have any idea on how I should handle these problems or a link for an appropriate package? For implementing these statistics on my own, I knowledge in R is n...

Hello List I'm trying to calculate the median period (in months) of a set of time intervals (between two interventions). I have been playing with the lubridate package to create the intervals but I can't think of the right approach to get the median timeperiod. Toy code: library(lubridate) test <- c('08-04-22', '08-07-28', '09-03-02', '09-03-03', '09-01-30', '09-03-09', '10-02-24', '10-03-05') test <- ymd(test) intervals <- as.period(test[5:8] - test[1:4]) intervals [1] 9 months...

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Hello all, I'm going to tackle learning C this week, and start writing my first * add-on/contribution; assuming it's actually worthy of contributing once it's done.. I think I've chosen a hefty project for my first go round here... I'd like to get some feedback from everyone on a FindMe/FollowMe spec I've put together. Before you read on, let me say, I don't want

...his, as I am using the output of different climate models which are different in for example time calendar and grid coordinates. To analyze monthly means I have been using the function /chron/ for 365 day calendar time series. Originally the time is in numbers (1,2....,14600). This is for the timeperiod: 1961-2000. library(chron) syntime <- var.get.nc(nc, "time") time =chron(syntime, origin=c(month=1, day=1, year=1961)) jan <- months(time)=="Jan" feb <- months(time)=="Feb" mar <- months(time)=="Mar" apr <- months(time)=="Apr" may...

...fg check gave the all clear: Reading configuration data... Read main config file okay... Processing object config file '/etc/nagios/objects/commands.cfg'... Processing object config file '/etc/nagios/objects/contacts.cfg'... Processing object config file '/etc/nagios/objects/timeperiods.cfg'... Processing object config file '/etc/nagios/objects/templates.cfg'... Processing object config file '/etc/nagios/objects/localhost.cfg'... Read object config files okay... Running pre-flight check on configuration data... Checking services... Checked 8 services. Ch...

...nows how to use sql, in R, i d be delited if he or she could explain it to me, more understandible then the manuals i find on the web. Here is what io would want sql to do . My data is in columns, one column holds all the case numbers, one the messured values, one all the testtypes and one the timeperiod and then one column for the lab's that preformed the test. is is stored in a txt file. So it is a long 5 column data table. Now is it possible to make a cross table holding the case nr's, and timeperiod in 2 column's, and then have a different column for every test? so if there are 4...

...ntent-Type: text/plain; charset=utf-8 Hello List I'm trying to calculate the median period (in months) of a set of time intervals (between two interventions). I have been playing with the lubridate package to create the intervals but I can't think of the right approach to get the median timeperiod. Toy code: library(lubridate) test <- c('08-04-22', '08-07-28', '09-03-02', '09-03-03', '09-01-30', '09-03-09', '10-02-24', '10-03-05') test <- ymd(test) intervals <- as.period(test[5:8] - test[1:4]) intervals [1] 9 months...