similar to: sort data.frame by specific date column

Hi, I am apparently not understanding some nuance about either the use of subset or more likely my ability to test for a numerical match using '='. Which is it? Thanks in advance. I've read a data file, reshaped it and then created MyResults by keeping only lines where the value column is greater than 0. So far so good. The data in MyResults looks good to me by eye. The

Hi, What is cast telling me when it says the following? Aggregation requires fun.aggregate: length used as default What is 'length'? I've taken a small subset of data and wondered what EnTime vs ExTime might look like. cast is kind enough to give me a table but I don't understand the values in the table. They seem to sum up ro be the same as the total dimension of the data

Hi all, I'm having a little bit of trouble with some date conversions and am hoping someone can help me out. Thanks in advance. OK, I have two sources of data that provide date info in a csv file differently. I've attached a small zipped file with two text files that illustrate both. (Is it ok to send attachments to this list? Not sure. It's very small.) I need to be able to

Hi, I've tried to capture the basics of this problem I'm having. Been working on this for a couple of days and just cannot get past it. As a test of this list software I've attached is a small text file zipped up. I hope it gets through but if it doesn't I'll post the actual text which is only 26 lines. Put it somewhere sensible and change the first line in the code to point

Hi, I wonder if someone can suggest how to create a new data.frame Y from X where X$PL_Pos is summed by each unique X$MyDate. Y should end up with two (or more) columns Y$MyDate and Y$PL_Sum with its value being the cumsum of all the values in X for that date. - a 'daily cumsum'. Thanks, Mark TStoDate = function (TSDate) { X = strptime(TSDate + 19e6L, "%Y%m%d")

Hi, Newbie alert on for loops... I have a bunch of data.frames built using rbind that have repeated values in the EnTime column. I want to read the value in the EnTime column and use it as an input to a function, but only down to the first occurrence of the string "(all)" where I want to break off and do other things. From the results I'm getting from some test code I clearly

in my booking / _form I have the following input fields : (startdate and endate) <div> <label for="startdate">Booking Start Date</label><br /> <%= text_field_tag(''startdate'', @startdate, {:class => @startdateclass, :readonly => "readonly", :maxlength => "25"} ) %> <%= observe_field("startdate",

Hi, First up, thanks again for all the help I'm getting on this list. I'm making great headway in analyzing my experimental data on an experiment by experiment basis. No way I could have done this in the time I've done it without your help. This email is partially a question about R but is also soliciting overall guidance if anyone wants to give it. I somehow managed to get an

Hi R-listers, I am trying to make a trellis boxplot with the HSuccess (y-axis) in each Rayos (beach sections) (x-axis), for each Aeventexhumed (A, B, C) - nesting event. I am not able to do so and keep receiving: Error in eval(expr, envir, enclos) : object 'Rayos' not found Please advise, Jean require(plyr) resp <- read.csv("ABC Arribada R File Dec 12 Jean

Hi All! I'm trying to convert serial numbers in Excel to dates in R. For each single "thedate" entry, I get a correct answer. But if I try using the for loop, I get bizarre numbers in "mynewdata". thedate<-as.matrix(40548:40759,ncol=1) exdate<-function(){ mynewdate<-NULL for(i in 1:nrow(thedate)){

Hi, I'm new to R and would like to know, how one can populate the list with array data. I'm reading a tab separated table in R. The data in the table looks something like this. #Table Data Comp    A    B    C Extracellular    103    268    535759 Nucleus    45603    47783    442744 #R code myData <- read.table("table.data",                 header=T,                

Friends I have a data frame, df that I want to extract some rows from Here is a sample of the data > head(df) TDate Expiry Underlie Strike CSettle PSettle Futures ExDate TTE 1 20080102 200801 200803 0.840 0.0000 0 0.9207 20080104 0.005479452 2 20080102 200801 200803 0.850 0.0000 0 0.9207 20080104 0.005479452 Rate Disc 1 0.0457 0.9997496 2 0.0457

Hi R Listers, I am trying to upload a data file and I received this message. It seems that I am still able to make graphs and Aeventexhumed still works in the analysis. Can I ignore this message or do I need to do something about this? Jean > require(plyr) Loading required package: plyr > turtlehatch <- read.csv(file.choose()) > attach(turtlehatch) The following object(s) are

Subject: [ANN] ri_cal 0.7.0 Released ri_cal version 0.7.0 has been released! * <http://ri-cal.rubyforge.org/> * <by Rick DeNatale> A new Ruby implementation of RFC2445 iCalendar. The existing Ruby iCalendar libraries (e.g. icalendar, vpim) provide for parsing and generating icalendar files, but do not support important things like enumerating occurrences of repeating events. This

Hey all, My site is working ok except for a page that displays as text instead of html. I tried to use this: puts "Content-Type: text/html" then it display the page as html normally but I still get that ugly part on top of my page: Content-Type: text/html Set-Cookie: _session_id=6356b18a24d56a0da01bfab791fa911d; path=/ Status: 200 OK Cache-Control: no-cache here is the url:

Hi R-listers, I am trying to compare sections of the beach separated from the HTL to the Veg (east to west), separated into indices (-5 to 30m), HTLIndex. Cross parallel (north to south) are major beach sections (Rayos 1, 2, 3, 4 and MNB). I am thinking to do an ANOVA for each independent rectangle of beach (not exactly but will be treated as). The HTL from (0-5m) in Rayo 1 is one rectangle of

Thanks for responding, Duncan, and clarifying that y'all need more info to help. I'm trying to compile binaries on os x 10.5.8 intel hardware that are compatible on ppc os x 10.4. When I include various flags to llvm-gcc, including: -m32 -arch ppc -isysroot /Developer/SDKs/MacOS10.4u.sdk -mmacosx-version-min=10.4 I am seeing errors when compiling using llvm-gcc 4.2. If I leave out

Hello winers I'm doing a little excersice. A minimal source #include <string> int main(void) { return 0; } So, if i compile that with: g++ -I/usr/include/wine/msvcrt -c myfile.cpp I get errors like: In file included from /usr/include/c++/4.4/bits/postypes.h:42, from /usr/include/c++/4.4/bits/char_traits.h:42, from

Hi, I can''t install eventmachine on Debian Lenny. ruby-dev and build-essential are installed. Where''s the problem? My (awful) logs: ============================= # gem i eventmachine Building native extensions. This could take a while... ERROR: Error installing eventmachine: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb checking for

Hello r-help, I am using the excellent np package to conduct a nonparametric kernel regression and am having some trouble plotting the results. I have 2 covariates, x1 and x2, and a continuous outcome variable y. I am conducting a nonparametric regression of y on x1 and x2. The one somewhat unusual feature of these data is that, to be included in the dataset, x1 must be at least as large as x2.