search for: hoermann

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2005 Feb 10
5
Annual cumulative sums from time series
...ly into annual pieces so I can cumsum() every year separately. I have the strong hope that the solution is one of these one-liners which leave the students with eyes wide open in surprise and makes them true believers in the power of the command-line 8-). Thanks & Greetings Georg -- Georg Hoermann, Luebeck, Germany Tel. 0451/47 70 32, 0172/431 57 15, Penguin #189476
2007 Jan 08
2
Simple spectral analysis
...final aim would be to get the periodogram (and the residuals from the reassembled data set...) Thanks and greetings, Georg The data set: air = read.csv("http://www.hydrology.uni-kiel.de/~schorsch/air_temp.csv") airtemp = ts(T_air, start=c(1989,1), freq = 365) plot(airtemp) -- Georg Hoermann, Dep. of Hydrology, Ecology, Kiel University, Germany +49/431/23761412, mo: +49/171/4995884, icq:348340729, skype: ghoermann
2004 Aug 24
7
Strange update problem 3.0.5->3.0.6 with XP-Clients
...es (read error in xp). I have tested it with Xp-Prof SP1 und SP2 (domain-login) and XP-Home (no domain login). Any hints what I should do? (I am no samba expert - until now it just worked) (bugreport to debian is submitted, 3.0.6-2 did not solve the problem) Thanks & Gruss Georg -- Georg Hoermann, Fachabteilung Wasserwirtschaft / Dep. Hydrology Ecosystem Research Center, Kiel University, Germany Tel. 0431-880-1207, Home: 0451/477032, 0172/4315715, Penguin #189476
2005 Feb 17
4
Getting *types* of arguments?
...ments of a function *with* variable/parameter types? formals() gives me the names of the parameters, but says nothing about the parameter type it expects (I know I can always use the help function). I would like somthing like $x: vector or data.frame... Thanks in advance... Georg -- Georg Hoermann, Fachabteilung Wasserwirtschaft / Dep. Hydrology Ecosystem Research Center, Kiel University, Germany, Penguin #189476 Tel. 0431-880-1207, 0172/4315715, ICQ: 348340729, MSN: hlschorsch
2005 Feb 25
2
Teaching R in 40 minutes. What should be included?
If _you_ were asked to give a 40 minute dog and pony show about R for a group of scientists ranging from physicists to geographers what would you put in? These people want to know what R can do. I'm thinking about something like: A. Overview B. data structures C. arithmetic and manipulation D. reading data E. linear models using glm F. graphics G. programming H. other tricks like rpart or