Displaying 20 results from an estimated 1000 matches similar to: "Plotting a x axis from a vector with rownames"
2017 Jul 24
5
Ifelse statements and combining columns
Hi everyone,
I'm having some trouble with my ifelse statements.
I'm trying to put 12 conditions within 3 groups. Here is the code I have so
far:
dat$cond <- ifelse(test = dat$cond == "cond1" | dat$cond == "cond2" |
dat$cond == "cond3" dat$cond == "cond4"
yes = "Uniform"
no = ifelse(test =
2017 Jul 24
0
Ifelse statements and combining columns
Not a reproducible example, so a bit of guessing here, but
a) don't try to assign results to variables inside the ifelse. That is, remove all the single-equals signs and "test" variables. If you really need to conditionally assign variables then use "if"... but chances are good you don't need that.
b) "closure" is effectively another word
2009 Sep 04
1
User defined function's argument as Subset function's input
Dear R users,
I have a data where I desire to subset according to certain conditions.
However, the script is very messy as there are about 30 distinct conditions.
(i.e. same script but with different conditions)
I would like to make a user defined function so that I can input the desired
conditions and just get the results accordingly.
Below is an arbitrary data set & sample statements
2011 Jun 17
4
profile plot in R
Hi friends,
I have a matrix with following format.
group var1 var2 .......varN
c1 group1 1.2399 1.4990....-1.4829
c2 group4 0.8989 0.7849.....1.8933
...
...
c100 group10 .....
I want to draw a profile plot
of each condition c1 to c100, which rows in above matrix and each line
representing a row should be uniquely colored according to the group(1
to 10).
I think this is simple task
2011 Dec 10
3
PCA on high dimentional data
Hi:
I have a large dataset mydata, of 1000 rows and 1000 columns. The rows
have gene names and columns have condition names (cond1, cond2, cond3,
etc).
mydata<- read.table(file="c:/file1.mtx", header=TRUE, sep="")
I applied PCA as follows:
data_after_pca<- prcomp(mydata, retx=TRUE, center=TRUE, scale.=TRUE);
Now i get 1000 PCs and i choose first three PCs and make a
2009 Aug 24
4
Is there a fast way to do several hundred thousand ANOVA tests?
Dear R users,
I have a matrix a and a classification vector b such that
> str(a)
num [1:50, 1:800000]
and
> str(b)
Factor w/ 3 levels "cond1","cond2","cond3"
I'd like to do an anova on all 800000 columns and record the F statistic for
each test; I currently do this using
f.stat.vec <- numeric(length(a[1,])
for (i in 1:length(a[1,]) {
f.test.frame
2013 Apr 23
2
Problemas con NA y el calculo de un promedio ponderado
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Estimada comunidad, tengo el siguiente problema:
1. tengo un data.frame con varias columnas, algunas numericas, otras son
variables categoricas
2. necesito hacer un calculo simple sobre este data.frame (un promedio
ponderado de los valores de la columna 7), pero solo para las filas que
cumplan ciertos criterios
3. en ocasiones ninguna de las filas
2009 Nov 21
3
"subset" or "condition" as argument to a function
Dear Rxperts!
I was wondering if it is possible to write a function which can take in
argument of a subset or condition.. Of course, I am aware of the alternate
methods like coplot, par.plot, xyplot etc... I am specifically interested in
using conditions/subsets with "plot"..
A simple fragmented example is shown here..
pltit <- function(y,x,dat,dat1,dat2,sbst) {
plot(y~x, data=dat,
2011 Oct 19
3
[LLVMdev] Question regarding basic-block placement optimization
On Tue, Oct 18, 2011 at 6:58 PM, Jakob Stoklund Olesen <stoklund at 2pi.dk>wrote:
>
> On Oct 18, 2011, at 5:22 PM, Chandler Carruth wrote:
>
> As for why it should be an IR pass, mostly because once the selection dag
>> runs through the code, we can never recover all of the freedom we have at
>> the IR level. To start with, splicing MBBs around requires known about
2007 Dec 04
2
Multiple stacked barplots on the same graph?
Dear R-Users,
I would like to know whether it is possible to draw several
stacked barplots (i.e. side by side on the same sheet)...
my data look like :
Cond1 Cond1' Cond2 Cond2'
Compartment 1 11,81 2,05 12,49 0,70
Compartment 2 10,51 1,98 13,56 0,85
Compartment 3 1,95 0,63 2,81 0,22
Compartment 4 2,08 0,17
2010 Nov 29
1
cross tabulate variables by subject id
Dear list,
I have data like this:
dat1 <- data.frame(subject=rep(1:10,2),
cond1=rep(c("A","B"),each=5),
cond2=rep(c("C","D"),each=10),
choice=sample(0:1,10,replace=TRUE))
I would like to compare subjects' "choice" for (cond1=="A" &
cond2=="C") vs
2012 May 04
0
[LLVMdev] Extending GetElementPointer, or Premature Linearization Considered Harmful
Hi Preston,
On Fri, May 4, 2012 at 9:12 AM, Preston Briggs <preston.briggs at gmail.com> wrote:
>
> which produces
>
> %arrayidx24 = getelementptr inbounds [100 x [100 x i64]]* %A, i64
> %arrayidx21.sum, i64 %add1411, i64 %add
> store i64 0, i64* %arrayidx24, align 8
> {{{(5 + ((3 + %n) * %n)),+,(2 * %n * %n)}<%for.cond1.preheader>,+,(4 *
2015 Jul 16
3
[LLVMdev] why LoopUnswitch pass does not constant fold conditional branch and merge blocks
Hi,
I have a general question on LoopUnswtich pass.
Consider the following IR snippet:
define i32 @test(i1 %cond) {
br label %loop_begin
loop_begin:
br i1 %cond, label %loop_body, label %loop_exit
loop_body:
br label %do_something
do_something:
call void @some_func() noreturn nounwind
br label %loop_begin
loop_exit:
ret i32 0
}
declare void @some_func() noreturn
After running
2007 Oct 10
1
Deleting for() loop in function
Dear UseRs,
I wrote following function in order to solve Data Envelopment Analysis.
Reason for posting is that the function is slow when nrow(dat) is large.
I wonder if other functions could substitute the for() loop in the
code, such as mapply().
Can anybody help to rewrite the dea() function as efficiently as
possible?
The code is as follows:
2012 Dec 05
1
Using multcomp::glht() with Anova object
Hello everyone,
I've conducted a Type III repeated-measures ANOVA using Anova() from the
car package, based on the suggestions at
http://blog.gribblelab.org/2009/03/09/repeated-measures-anova-using-r/(option
3) and
http://languagescience.umd.edu/wiki/EEG#ERP_ANOVA_in_R. My ANOVA has two
factors: Condition (3 levels) and Region (6 levels) and their interaction.
Below is code to run the Anova
2012 Sep 27
2
equivalent of Stata "by construct"
I am evaluating a switch from Stata to R. I don't need to extensive Statistical methods, but the main reason I am exploring the switch is the coding flexibility in R (e.g. Stata does not support linear/quadratic programming). I have been going over the R syntax and I had a quick question:
In Stata, one has a very useful construction called "by", e.g.
by month signal: gen xxx =
2017 May 22
5
[poison] is select-of-select to logic+select allowed?
Some InstCombine transforms for select-of-select were added here:
https://reviews.llvm.org/rL228409
But Alive says this is more poisonous:
Name: selsel
%s1 = select i1 %cond1, i8 C1, i8 C2
%s2 = select i1 %cond2, i8 %s1, i8 C2
=>
%andcond = and i1 %cond1, %cond2
%s2 = select i1 %andcond, i8 C1, i8 C2
http://rise4fun.com/Alive/JT6
Are those transforms legal?
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2012 May 04
3
[LLVMdev] Extending GetElementPointer, or Premature Linearization Considered Harmful
Is there any chance of replacing/extending the GEP instruction?
As noted in the GEP FAQ, GEPs don't support variable-length arrays; when
the front ends have to support VLAs, they linearize the subscript
expressions, throwing away information. The FAQ suggests that folks
interested in writing an analysis that understands array indices (I'm
thinking of dependence analysis) should be
2012 Mar 19
3
Issue with asin()
Hello everyone,
I am working for a few days already on a basic algorithm, very common in
applied agronomy, that aims to determine the degree-days necessary for a
given individual to reach a given growth stade. The algorithm (and context)
is explained here: http://www.oardc.ohio-state.edu/gdd/glossary.htm , and
so I implemented my function in R as follows:
DD <- function(Tmin, Tmax, Tseuil,
2012 Sep 07
2
Contrasts for 2x4 interaction in mixed effects model
Hello everyone,
I am running a mixed effects model where I have two fixed factors, one with
2 levels and one with 4, and their interaction. Let's say these are my
factors and their levels:
FirstFactor: 1, 2
SecondFactor: A, B, C, D
For the interaction, I am interested in the four two-way comparisons, not
the two four-way comparisons. In other words, I want to test whether 1A is