Displaying 20 results from an estimated 48053 matches for "day".
2007 Dec 03
3
Ordering the levels of a vector
Hi,
I have a vector in a data frame that looks
something like this:
day<-c('Day -1','Day 6','Day 10')
This vector specifies the order in which several
panel will appear in a lattice plots. But the order in
which such plots will appear will be the following:
Day -1, Day 10, Day 6. Which makes sense, but I cannot
name the Days like this: D...
2009 Dec 08
0
Holiday Gift Perl Script for US Holiday Dummy Regressors
##### BEGIN CODE ######
#!/usr/bin/perl
######
#
# --start, -s = The date you would like to start generating regressors
#--end, -e = When to stop generating holiday regressros
# --scope, -c = D, W for Daily or Weekly respectively (e.g. Does this week
have a particular holiday)
# --file, -f = Ummm where to write the output silly!
#
# **NOTE** The EOM holiday is "End of Month" for computer systems this may
be important for
# extra processing and what n...
2009 Dec 08
0
Opps Correct Version of Holiday Regressor Perl Script
Here is the correct version. The old version is the redirect only version of
the script.
### BEGIN SCRIPT ####
#!/usr/bin/perl
######
# --start, -s = The date you would like to start generating regressors
#--end, -e = When to stop generating holiday regressros
# --scope, -c = D, W for Daily or Weekly respectively (e.g. Does this week
have a particular holiday)
# --file, -f = Ummm where to write the output silly!
#
# **NOTE** The EOM holiday is "End of Month" for computer systems this may
be important for
# extra processing and what n...
2008 Dec 15
1
Movement within a circle
...wall, but?I don't seem to be able to get this right. ?Would somebody?be able to?give me a hint ? This is my code so far, the particle starts at some point and moves towards the wall, but I don't get the "bouncing off" part right?.
?
Any help would be much appreciated.
?
Juliane
?
days=10
circularspace=data.frame(day=c(0:days),xcoord=1,ycoord=1,xvelocity=1,yvelocity=1,xdistwall=0, ydistwall=0, wallxvel=0, wallyvel=0,stochasticxvel=0,stochasticyvel=0)
xmax=10
xmin=-10
ymax=10
ymin=-10
mindist=8
plot(xmin:xmax, ymin:ymax, type = "n")
circularspace
radius=10
timesteplengt...
2008 Dec 15
1
Semi-random movement inside a circle
...the wall, but I don't seem to be able to get this right. Would somebody kindly give me a hint ? This is my code so far, the particle starts at some point and moves towards the wall, but I don't get the "bouncing off" part right .
Any help would be much appreciated.
Juliane
days=10
circularspace=data.frame(day=c(0:days),xcoord=1,ycoord=1,xvelocity=1,yvelocity=1,xdistwall=0, ydistwall=0, wallxvel=0, wallyvel=0,stochasticxvel=0,stochasticyvel=0)
xmax=10
xmin=-10
ymax=10
ymin=-10
mindist=8
plot(xmin:xmax, ymin:ymax, type = "n")
circularspace
radius=10
timesteplengt...
2011 Nov 15
2
Models with ordered and unordered factors
Hello;
I am having a problems with the interpretation of models using ordered or
unordered predictors.
I am running models in lmer but I will try to give a simplified example
data set using lm.
Both in the example and in my real data set I use a predictor variable
referring to 3 consecutive days of an experiment. It is a factor, and I
thought it would be more correct to consider it ordered.
Below is my example code with my comments/ideas along it.
Can someone help me to understand what is happening?
Thanks a lot in advance;
Catarina Miranda
y<-c(72,25,24,2,18,38,62,30,78,34,67,21,9...
2017 Dec 15
1
Milestone: 12,000 packages on CRAN
CRAN reached 12,000 packages [1] today (December 15, 2017).
A huge thank you to the CRAN team!
Milestones:
2017-12-15 12000 pkgs (+6.1/day over 165 days) 6910 mnts (+3.2/day)
2017-07-04 11000 pkgs (+6.3/day over 159 days) 6377 mnts (+3.3/day)
2017-01-27 10000 pkgs (+6.3/day over 158 days) 5845 mnts (+3.5/day)
2016-08-22 9000 pkgs (+5...
2006 Feb 08
2
lme syntax for P&B examples
...n lme4 syntax so I can
follow what is happening in the text I'd be grateful.
Cheers
Paul Cossens
#Pixel
# P&B(2000) p40-45
Pixel<-read.csv("Pixel.csv",header=TRUE);
Pixel$Side<-as.factor(Pixel$Side)
Pixel$Dog<-as.factor(Pixel$Dog)
(fm1Pixel <- lmer(pixel ~ day + I(day^2) +(day|Dog)+(1|Side), data =
Pixel))
(fm2Pixel <- lmer(pixel ~ day + I(day^2) +(day|Dog), data = Pixel))
(fm3Pixel <- lmer(pixel ~ day + I(day^2) +(1|Dog:Side), data = Pixel))
or should I do it this way?
Pixel$DS<-with(Pixel,Dog:Side)[drop=TRUE]
(fm3Pixel <- lmer(pixel ~ day +...
2005 May 10
58
A quick straw poll
How many of you are using Rails:
1. As the primary development tool at your Day Job
2. As a small part of your Day Job
3. Not using Rails in your Day Job, but are using Ruby
4. For OS/outside work/hobby
--
sam
http://www.magpiebrain.com/
2004 Mar 01
6
Find out the day of week for a chron object?
I know that this is correct:
library(chron)
x = dates("01-03-04", format="d-m-y", out.format="day mon year")
print(x)
It gives me the string "01 Mar 2004" which is correct.
I also know that I can say:
print(day.of.week(3,1,2004))
in which case he says 1, for today is monday.
My question is: How do I combine these two!? :-) I have a data file
which is being parsed n...
2011 Jul 12
2
time zone - any practical solution?
...-------------------------
When data imported from Excel 2007 into R (2.13)
all time variables, depending on date (summer or winter) get (un-asked for
it!) a time zone addition CEST (for summer dates) or CET (for winter dates).
> Dataset
Start End1 End2
days2End1.from.Excel days2End2.from.Excel
days2End1.in.R days2End2.in.R
1 2010-01-01 2011-01-01 2012-01-01
365 730
365 days 730.0000 days
2 2010-02-01 2011-02-01 2012-01-01
365...
2010 Nov 27
3
Two time measures
Hello!
I have a csv file of intra-day financial data (5-min closing prices) that
looks like this: (obs - the dates are formated as day/month/year, as is
usual here in Brazil)
Date;Time;Close
01/09/2009;10:00;56567
01/09/2009;10:05;56463
01/09/2009;10:10;56370
##(goes on all day)
01/09/2009;16:45;55771
01/09/2009;16:50;55823
01/09/2009...
2017 Jan 28
2
Subject: Milestone: 10000 packages on CRAN
Continuing the tradition to post millennia milestones on CRAN:
So, it happened. Today (January 27, 2017 PCT) CRAN reached 10,000 packages [1].
Needless to say, the rate with which new packages are added to CRAN
keeps increasing and so does the number of contributors (maintainers).
Somewhere out there, there are ~3 persons who are about to submit
their first packages to CRAN today a...
2012 Sep 06
2
No room for labels in barplot
All,
I have:
sales <- c(2300,900,155,102,42,10)
names(sales) <- c("Christmas","Valentine's Day",
"Mother's Day","Father's Day",
"Thanksgiving","New Year's Day")
barplot(sales,ylim=c(0,2500))
But it doesn't place all of the name labels on the plot. So I tried:
sales <- c(2300,900,155,102,42,10)
names(sales...
2013 Jan 13
1
Extract data in word pad
...000(PARTIAL) 33.8 at interval beginning 19720517 144507
19730629 080000(PARTIAL) 32.2 at interval beginning 19720910 135747
and so on...
The original data set are given below:
Year Ending Maximum Value (Rain mm)
Gap from 19710509 090000 to 19710607 080000 of 28.96 Days
19710629 080000(PARTIAL) 39.3 at interval beginning 19701126 010326
Gap from 19710809 110221 to 19710816 080000 of 6.87 Days
Gap from 19720207 070000 to 19720303 080000 of 25.04 Days
Gap from 19720424 070000 to 19720504 080000 of 10.04 Days
19720629 080000(PARTIAL) 33.8 at in...
2010 Oct 30
2
grouping question
...ping question however, given my
limited exposure to R, I have not found a solution yet despite my research
efforts and wild attempts at what I thought "might" produce some sort of
result.
I have a very simple list of integers that range between 1 and 24. These
correspond to hours of the day.
I am trying to create a grouping of Day and Night with
Day = 6 to 17.99
Night = 1 to 5.59 and 18 to 24
Using the Cut command I can create the segments but I have not found a
"combine" type of command to merger the two "night" segments. No luck with
if/else either.
Any he...
2011 Jul 12
0
timezones - any practical solution?
...-----------------------------
When data imported from Excel 2007 into R (2.13)
all time variables, depending on date (summer or winter) get (un-asked for
it!) a time zone addition CEST (for summer dates) or CET (for winter dates).
> Dataset
Start End1 End2
days2End1.from.Excel days2End2.from.Excel
days2End1.in.R days2End2.in.R
1 2010-01-01 2011-01-01 2012-01-01
365 730
365 days 730.0000 days
2 2010-02-01 2011-02-01 2012-01-01
365...
2009 Nov 22
1
Input file format to Anova from car package
Dear list member,
My question is related to input file format to an Anova from car package.
Here is an example of what I did:
My file format is like this (and I dislike the idea that I will need
to recode it):
Hormone day Block Treatment Plant Diameter High N.Leaves
SH 23 1 1 1 3.19 25.3 2
SH 23 1 1 2 3.42 5.5 1
SH 23 1 2 1 2.19 5.2 2
SH 23 1 2 2 2.17 7.6 2
CH 23 1 1 1 3.64 6.5 2
CH 23 1 1 2 2.8 3.7 2
CH 23 1 2 1 3.28 4 2
CH 23 1 2 2 2.82 5.2 2
SH 23 2 1 1 2.87 6.4 2
SH 23 2 1 2 2.8 6 2
SH 23 2 2 1 2.02 4.5 2
SH 23...
2010 Jun 21
2
Calculating a daily average
I have a set of data with 12 readings for temperature per day, with
180 days. I want to find the average temperature of each day. I am
able to do this one by one, but with that many days to calculate the
average for, it will get very long. I'm sure there is a faster way to
do this, I just don't know how. What i have so far is:
av1 <- sub...
2012 Dec 29
1
AIC values with lmer and anova function
...randomly divided into 3 groups ("c", "t1", "t2"). There is
no need for inclusion of the random effect of the intercept, because the
nine sample units are homogeneous among each other (samples taken from the
same culture). The algal concentration was measured every two days for 10
days. The goal is to test differences between treatments.
I estimated a model with only the intercept and the interaction Group * Day
to test which is the best:
library(nlme)
library(lme4)
Day = rep(c(0,2,4,6,8,10),each=9)
Group = rep(c("c","c","c","t1&q...