Displaying 7 results from an estimated 7 matches for "marcelcurlin".
2011 Sep 12
2
regression on data subsets in datafile
I have data of the form
tC <- textConnection("
Subject Date parameter1
bob 3/2/99 10
bob 4/2/99 10
bob 5/5/99 10
bob 6/27/99 NA
bob 8/35/01 10
bob 3/2/02 10
steve 1/2/99 4
steve 2/2/00 7
steve 3/2/01 10
steve 4/2/02 NA
steve 5/2/03 16
kevin 6/5/04 24
")
data <- read.table(header=TRUE, tC)
close.connection(tC)
rm(tC)
I am trying to calculate rate of change of parameter1 in
2012 Dec 14
2
Manipulation of longitudinal data by row
I have a dataset of the form below, consisting of one unique ID per
row, followed by a series of visit dates. At each visit there are
values for 3 dichotomous variables. Of the 8 different possible
combinations of the three variables, 4 are "abnormal" and the
remaining 4 are "normal". Everyone starts out abnormal, and then
either continues to be abnormal at subsequent visits,
2011 Jul 21
6
Lattice: place ticks only on y-axis
I am using lattice for a bar plot, having a little trouble removing ticks,
tick labels from x-axis, but keeping them on the y-axis. I looked around
quite a bit (http://tolstoy.newcastle.edu.au/R/e7/help/09/06/1733.html, help
pages, etc), tried variations of "scales = list(alternating = c(0,0)",
"scales = list(alternating = c(0,0), tck = c(0,0))" and others, couldn't
quite
2011 Jul 11
3
Stacked bar plot of frequency vs time
Hi All,
New to R, but committed. I looked in a number of places but can't figure out
my current problem. I have date of the type:
Time Type1 Type2 Type3
1 .50 .25 .25
4 .55 .25 .20
5 .65 .20 .15
etc
which describe the frequency of types 1, 2 and 3 (adding up to 100%) over
time. I would like to create a stacked bar chart showing these
2011 Jul 25
2
Lattice: distance of tick labels from axis line
Hi, I am doing fine editing on a lattice plot, now have the Y-axis title in
the correct position, but the tick labels are too far from the axis line. I
looked at the help documentation but could not find how to change this. This
seems to be easy to do in basic plots with "at=c(value1, value2, value3)" .
Is there some equivalent in lattice? Thanks.
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2011 Jul 26
2
Lattice: choice of symbol and symbol position in legend
I am making final adjustments to a multi-plot figure using basic and lattice.
In the lattice plot, I would like to include a legend that matches the
format of the legends in the other plots, which consist of appropriately
colored squares (pch 22) followed by text. In lattice, I was able to get a
legend using
auto.key = list(x = .6, y = .6, corner = c(0, 0), pch=22)
but my request for pch=22 was
2011 Jul 22
2
Lattice: distance of Y-axis label from plot
Basic question: I looked around quite a bit, still having a little trouble
manipulating the distance between the Y-axis label and the plot. In this
case, I would like to move the Y axis title closer to the plot.
# Data
tC <- textConnection("
Time Type1 Type2 Type3
1.3 .50 .10 .40
4.5 .45 .20 .35
5.2 .40 .30 .30
")
data1 <- read.table(header=TRUE, tC)
data2 <-