similar to: can''t get date_select to work

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",

I am using the date_select helper to generate date select elements in a form. I notice that the generated HTML shows that these selects have the following names: Month: current_job[StartDate(2i)] Day: current_job[StartDate(3i)] Year: current_job[StartDate(1i)] I''m assuming that the Xi identifiers somehow specify the appropriate date part from a date or time value. Can anyone

Hi R, How to get the range of values form startDate to lastDate as given below?. #***************************************************************** # Load historical data #****************************************************************** library('quantmod') endDate =Sys.Date() startDate = as.Date(endDate-30, order="ymd") dataspy = getSymbols("SPY", from = startDate,

Hi, I would like to make @dates in my controller. I tried the following: startdate = Time.now enddate = startdate.next_week for enddate > startdate @dates << startdate startdate = startdate.tomorrow end But I get an errormessage when I check the syntax: "warning: useless use of a variable in void context" Anyone? Thanks! Steven. -- Posted via

Hi All, I am iterating through dated materials, with variable start and end dates, and would like to skip procedures everytime I encounter a weekend or holiday. To do this, I thought the easiest way would be to create a TRUE/FALSE vector corresponding to each day where it is TRUE if a workday, and FALSE if a weekend or holiday. So far I have been able to do this for weekdays: startDate <-

Ok, Here''s my controller: def create trainingplan = Trainingplan.createplan(@params[:startdate], @params[:enddate], @params[:hoursperweek], @params[:programtype]) end My model is: class Trainingplan <ActiveRecord::Base def self.createplan(stardate, enddate, hoursperweek, programtype) stardate = startdate enddate = enddate hoursperweek = hoursperweek programtype

I have the following function myGetstockdataMySQL <- function(startdate, enddate, ticker) { con <- dbConnect(MySQL(), user="blahblah", password="blahblah", dbname="blahblah", host="localhost") rs <- dbGetQuery(con, "SELECT price.close FROM price INNER JOIN stocks ON stocks.stock_id=price.stock_ID WHERE (price.date_holding BETWEEN

I can't get the scales parameter in xyplot of lattice to work as I expected. I'm using R-2.1.0 and lattice 0.11-8. There should be year labels from 1992 to 2004 for the x axis in the plot below, but instead only a few of them appear, and in the wrong spots, as if the coordinate system has changed after finishing with the panel function. library(chron) library(lattice) # vertical grid

Hi there, I''m currently building a membership application and I want to be able to select, not just all the memberships, but the most current membership from the database on a per user basis. I have linked the tables as shown:- class Membership < ActiveRecord::Base belongs_to :payment belongs_to :person end class Person < ActiveRecord::Base has_many :memberships

Hello fellow R people, I don't understand the default behavior of the axis labeling when plotting dates. I would expect something like 2001, 2002 or possibly Jan 01, Jan 02...Jan 06, but instead I only see Jan 01, Jan 01, Jan 01.... See the following example startdate <- strptime("2001-01-01",format="%Y-%m-%d") enddate <-

HI I want to create a dummy variable for a dataset which has various dates Eg I've one year data. The user can choose any date range startdate : 2012-01-01 enddate: 2012-02-01 startdate: 2012-06-01 enddate=2012-07-01 the columns of dataset= X ,Y ,date Thanks and re ----- Thanks in Advance Arun -- View this message in context:

hi folks. i want to check if a param exists if not to set it to a default value for my date range filter. in my controller i have: @from_date = Date.strptime(params[:startdate],"%d/%m/%Y") @to_date = Date.strptime(params[:enddate],"%d/%m/%Y") @articles = @results.find(:all, :conditions => [ "created_at >= ? and created_at

Hi Eric, the following works for me. HTH, Eric library(EGRET) StartDate <- "1990-10-01" EndDate <- "2017-09-30" siteNumber <- "10310000" QParameterCd <- "00060" Daily <- readNWISDaily(siteNumber, QParameterCd, StartDate, EndDate) # Define 'center of mass' function com <- function(x) { match(TRUE, cumsum(x/sum(x)) > 0.5) -

Hi, I have a data.frame with factors in columns like startdate enddate 27SEP2005 01JAN2006 How can I calculate the duration between those two dates and move this in a extra column in the data.frame. Thanks, André [[alternative HTML version deleted]]

Hello everybody, I need to calculate seasonal means with temperature data for my work. I have 70 files coming from weather stations, which looks like this for example: startdate <- as.POSIXct("01/01/2006", format = "%d/%m/%Y") enddate <- as.POSIXct("05/01/2006", format = "%d/%m/%Y") date <- seq(from = startdate, to = enddate, by =

Hey guys, So I'm working with a project where I manage a database within R, and I'm developing a script/function that will automatically run my queries in R depending on the date parameters passed in. The problem is that when I create variables for the dates, and use those variables in my sqldf statements, R says that there is no such column in the dataframe (which is true!). My question

I found an example at http://www.bearcave.com/finance/random_r_hacks/kalman_smooth.html shown below. But it seems the structSSM function has been removed from KFAS library so it won't run. Does anyone know how to fix the code so that it runs? library(KFAS) library(tseries) library(timeSeries) library(zoo) library(quantmod) getDailyPrices = function( tickerSym, startDate, endDate ) {

Eric B's response provided just the kind of quick & simple solution I was hoping for (appears as the function com below). However, I once again failed to take advantage of the power of R and have reverted back to using a for loop for the next step of the processing. The example below (which requires the library EGRET for pulling an example dataset) works, but probably can be replaced

Is there somebody out there who has built a working thingy with the Sublist plugin? I can''t get it to work. I get this error message: undefined method `stringify_keys!'' for "2005":String RAILS_ROOT: ./script/../config/.. Application Trace | Framework Trace | Full Trace E:/Programmeren/Ruby/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/base.rb:1506:in

All, I have been just recently working with zoo objects for trading systems. Can someone please help with these basic questions? Given a daily time series downloaded using get.hist.quote() from the tseries package, ie...... startDate= as.Date("2000-01-01") endDate= as.Date("2011-01-29") frequency= 'd' s= get.hist.quote('IWF', start= startDate, end=