Displaying 20 results from an estimated 200 matches similar to: "Axis Breaks with ggplot2"
2010 Feb 16
1
difftimes; histogram; memory problems
Hi All:
Let's say I have two dataframes (Condition1 and Condition2); each
being on the order of 12,000 and 16,000 rows; 1 column. The entries
contain dates.
I'd like to calculate, for each possible pair of dates (that is:
Condition1[1:10,000] and Condition2[1:10,000], the number of days
difference between the dates in the pair. The result should be a
matrix 12,000 by 16,000. Really,
2010 May 31
1
Post-hoc tests for repeated measures in balanced experimental design
Hi,
I am performing experiments in the field of visual perception where
we often apply balanced designs. Within a group of normal subjects,
we vary different stimulus conditions (like contrast, luminance,
temporal frequency of stimulation) and derive some psychophysical or
electrophysiological results from our subjects. Often, the main
question is to test the effect of these parameters
2008 Aug 25
1
lattice : using both strip and strip.left
Dear all,
I'm routinely using lattice and ggplot2, I wish to create a lattice
theme that looks not too dissimilar to ggplot's defaults so I can
include both graphs in a document with a consistent look.
To illustrate my questions, consider the following example:
> library(ggplot2)
> library(lattice)
>
> # example data
> x <- seq(0, 10, len = 100)
> y1 <-
2011 Mar 03
0
[LLVMdev] Improving select_cc lowering for targets with conditional move
Let's consider the following piece of C code: (incomplete and not
compilable ;) )
result = initValue;
for(i)
{
...
if(condition)
result = updatedValue_i;
...
}
For targets with conditional moves, the result is updated using the
following sequence of instructions:
regTmp = regFalse;
if(condition2) regTmp = regTrue;
regResult = regTmp;
Now, you have 2 cases:
1)
2010 May 20
1
Mixed Effects Model on Within-Subjects Design
Dear R Experts,
I am attempting to run a mixed effects model on a within-subjects repeated
measures design, but I am unsure if I am doing it properly. I was hoping
that someone would be able to offer some guidance.
There are 5 independent variables (subject, condition, difficulty,
repetition) and 1 dependent measure (value). Condition and difficulty are
fixed effects and have 3 levels each
2011 Dec 08
1
prop.test() and the simultaneous confidence interval for multiple proportions in R
Dear list members,
I want to perform in R the analysis "simultaneous confidence interval for multiple proportions", as illustrated in the article of Agresti et al. (2008) "Simultaneous confidence intervals for comparing binomial parameter", Biometrics 64, 1270-1275.
If I am not wrong the R function implementing the Agresti et al. method is prop.test(). I ask an help because I
2010 Apr 30
2
deriving mean from specific cases
Hi all,
I have a large dataset that has >10k entries. The dataset is stored in a
dataframe with the headers:
SubID Condition1 Condition2 Result1 Result2
There are multiple entries for a given SubID(Subject ID). Condition 1 has 3
levels and condition2 has 2 levels (therefore there are 6 possible
combinations all together e.g. Cond1 Level1 x Cond2 Level 1 etc.) and i need
to compute for
1. The
2011 Feb 02
2
subset in a BIG matrix
I have a matrix with a lot of values inside..
when I execute the folowing command
matrix2=subset(martix, condition.....)
it works...
but after the previous command I execute another "subset"
matrix3=subset(martix2, condition2.....)
and appears the following error:
(subscript) logical subscript too long
How can I solve this???
I think the probles is the size of the matrix...
2012 Nov 24
2
Performing operations only on selected data
I spent some time on this simple question, also searched the forum,
eventually hacked my way to an ugly solution for my particular problem but I
would like to improve my coding:
I have data of the form:
df <- expand.grid(group=c('copper', 'zinc', 'aluminum', 'nickel'),
condition1=c(1:4))
I would like to add a new data column "condition2", with values
2008 Aug 13
3
conditional IF with AND
Hi everyone,
I'm trying to create an "if" conditional statement with two conditions,
whereby the statement is true when condition 1 AND condition 2 are met:
code structure:
if ?AND? (a[x,y] <condition1>, a[x,y] <condition2>)
I've trawled through the help files, but I cannot find an example of the
syntax for incorporating an AND in a conditional IF statement.
2006 Mar 17
2
How to let the layout be more OO?
I am confused about the @content_for_layout.''cause it will display all
the views in the layout.Do I have any methods to let the layout be more
OO? I mean that for example,the app currently have more than one views
to be displayed,but only some of them to be displayed at the same time
at different <div></div> units. I hope there exists a kind of way that:
<%= if
2014 Sep 25
5
[LLVMdev] New type of smart pointer for LLVM
Hello everyone,
I bring to discussion the necessity/design of a new type of smart
pointer. r215176 and r217791 rise the problem, D5443
<http://reviews.llvm.org/D5443> is devoted to the solution.
r215176 applies several temporary ugly fixes of memory leaks in
TGParser.cpp which would be great to be refactored using smart pointers.
D5443 <http://reviews.llvm.org/D5443> demonstrates
2011 Dec 13
1
[LLVMdev] Changing the operands in the CallInst
I implement the following function,which gets CallInst * and should perform
the following:
1. Change the value of the argument if condition1 takes place
2. Change the type of the argument if condition2 takes place
3. Add addition argument/s if condition3 takes place
void argChange(CallInst * I)
{
for (unsigned index = 0; index < I->getNumOperands(); ++index) {
2007 Nov 27
2
rearrange data: one line per subject, one column per condition
Dear R-list,
Is there a way to convert the typical long R data-format to a 1-line per subject format?
I have data formatted as:
Group subj condition variable
1 1 1 746.36625
2 2 1 1076.152857
1 3 1 1076.152857
2 4 1 657.4263636
1 5 1 854.1266667
2 6 1 1191.676154
1 7 1 1028.175385
1 1 2 46.36625
2 2 2 76.152857
1 3 2 76.152857
2 4 2 57.4263636
1 5 2 54.1266667
2 6 2 191.676154
1 7 2 028.175385
2009 Mar 06
1
a general question
Hi everyone,
Although this question is more related to ChIP and ChIP-seq, it could be
probably anchored in a more general statistical context.
The question is : what method is better to assess the significance of the
change in a signal (the signal can be DNA binding, for instance) given the
background and 2 conditions.
<. condition1 (eg no treatment) : background = 1;
2007 Nov 05
1
Should numeric()/character() etc initialize with NA instead of 0 or ""?
Wouldn't it make programming more error-resistant if vectors were
initialized with missing data, instad of zeroes or ""?
That way, if you assign values to a vector elementwise and you miss some
elements
(because their indices were not selected or because the assignment didn't
work out, see below for code examples)
this would be immediately obvious from the value of the vector
2010 Mar 04
1
mysqlWriteTable . error in your SQL syntax?
Hi,
Can somebody advice on weird mysqlWriteTable bug.
> mysqlWriteTable(conn, 'comparison',design2, row.names = F, overwrite=T)
Error in mysqlExecStatement(conn, statement, ...) :
RS-DBI driver: (could not run statement: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"condition"
2007 Sep 12
1
enquiry
Dear R-help,
I am trying to estimate a Cox model with nested effects basing on the
minimization of the overall AIC; I have two frailties terms, both gamma
distributed. There is a error message (theta2 argument misses) and I
don?t understand why. I would like to know what I have wrong. Thank you
very much for your time.
fitM7 <- coxph(Surv(lifespan,censured) ~ south + frailty(id,
2011 Nov 16
1
Cubic Gradient Descent Package
R -
Does anyone know of a cubic gradient descent package? I found grad.desc()
but that only allows for a 2d function. I have 3 free parameters and thus
am looking for a 3d function.
Thank you,
--
Edward H. Patzelt
Research Assistant – TRiCAM Lab
University of Minnesota – Psychology/Psychiatry
VA Medical Center
S355 Elliot Hall: 612-626-0072
www.psych.umn.edu/research/tricam
[[alternative
2011 Aug 05
1
If find x, then y, else do nothing
I want to write code that says "If you find an element equal to 4 in this
vector for each person in the data set tested separately, then put in 1 for
2 and 2 for 4, else leave the variable as is"
u.ppl <- (unique(init.dat1$grid))
l.ppl <- length(u.ppl)
for (i in 1:l.ppl)
{
if (grep("4",init.dat1$Slide1_RESP)) {2 == 1, 4 == 2}; else