Displaying 20 results from an estimated 4000 matches similar to: "how to iterate"
2006 Jul 21
3
Migration and Mysql row ID
Apologies if this has been discussed before, but with the search
function down its hard to find out if it has
The first Agile book recommended using the automatically assigned row id
of an object as a foreign key reference, as rails would automatically
interpret the attribute (for example) product_id as the table ''product''
and row ''id''.
I''ve just
2007 Jul 06
1
Multiple Stripcharts
Hi all,
I have 205 rows with measurements for three categories of people. I want to
generate stripplots for each of these rows. How can I do it without having
to do them one by one. I am giving a sample dataset:-
A
B
C
A
B
C
A
B
C
A
B
C
10.34822
10.18426
9.837874
9.65047
8.020482
9.17312
6.349595
13.55664
5.286697
11.85409
2.827027
7.002696
11.54984
12.14591
2009 Jul 28
4
How to do poisson distribution test like this?
Dear R-listers,
I want to reperfrom a poisson distribution test that presented in a
recent-published biological research paper (Plant Physiology 2008, vol 148,
pp. 1189-1200). That test is about the occurrence number of a kind of gene
in separate chromosomes.
For instance:
The observed gene number in chromosome A is 36.
The expected gene number in chromosome A is 30.
Then, the authors got a
2007 Jul 13
1
how to create matrix in a loop
Hi all,
How does one create a matrix of values in a loop. For example, I have 46*70
matrix with columns giving the values for some blood tests performed upon
the 46 patients(rows). I want to perform a simple test of normality
(shapiro-wilk test) upon each of the biochemical tests for the 46
patients. Can somebody suggest the syntax for such a loop. For the data x, I
wrote the following loop which
2007 Jun 23
1
warning in a loop
hi all,
I have a matrix with first column having some measurable values, these are
indexed by the numerals 1,2 and 3 in the other columns of the data and may
be interpreted as values for categories 1,2 and 3.
I have written the following loop
t<-1:10
for(i in 1:10)
+ {
+ k[i]<-d[(d[,(i+1)]%in%1),1]
+ p[i]<-d[(d[,(i+1)]%in%2),1]
+ t[i]<-t.test(k[i],p[i])$p.value
+ }
Error in
2008 May 30
1
Get all X iterations in optim output when controls(trace=6)
Hi,
I would like to get all X iterations in optim output in matrix form.
I know about the follow approach:
sink("reportOptim")
optim( ......., control=list( trace=6,..........) )
sink()
all_iterOptim <- readLines("reportOptim")
unlink("reportOptim")
all_iterOptim <- all_iterOptim[ grep( '^X', all_iterOptim ) ]
### TODO: the rest !!! :-)
But it is very
2012 Jul 11
2
help with merging 2 data frames
Dear R-ers,
I feel I am close, but can't get it quite right.
Thanks a lot for your help!
Dimitri
# I have 2 data frames:
x<-data.frame(a=c("aa","aa","ab","ab","ba","ba","bb","bb"),b=c(1:2,1:2,1:2,1:2),d=c(10,20,30,40,50,60,70,80))
2009 Feb 18
2
understanding how R determines numbers and characters when creating a data frame
Hello R Users and Developers,
I have a basic question about how R works. Over the past few years I have
struggled when I try to generate a new data frame that I believe should
contain numeric data in some columns and character data in others only to
find everything converted to character data. Is there a general method to
create data frames that contain the data in the desired format: numbers
2013 Nov 15
1
optimization
x1<-c(5.548,4.896,1.964,3.586,3.824,3.111,3.607,3.557,2.989,18.053,3.773,1.253,2.094,2.726,1.758,5.011,2.455,0.913,0.890,2.468,4.168,4.810,34.319,1.531,1.481,2.239,4.204,3.463,1.727)
y<-c(2.590,3.770,1.270,1.445,3.290,0.930,1.600,1.250,3.450,1.096,1.745,1.060,0.890,2.755,1.515,4.770,2.220,0.590,0.530,1.910,4.010,1.745,1.965,2.555,0.770,0.720,1.730,2.860,0.760)
2015 Dec 01
3
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 1, 2015 at 2:32 PM, Sinclair Yeh <syeh at vmware.com> wrote:
> Hi,
>
> On Tue, Dec 01, 2015 at 02:24:14PM -0800, Dmitry Torokhov wrote:
>> On Tue, Dec 01, 2015 at 02:18:49PM -0800, Sinclair Yeh wrote:
>> > v2:
>> > Instead of replacing existing VMMOUSE defines, only modify enough
>> > to use the new VMW_PORT define.
>> >
>>
2015 Dec 01
3
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 1, 2015 at 2:32 PM, Sinclair Yeh <syeh at vmware.com> wrote:
> Hi,
>
> On Tue, Dec 01, 2015 at 02:24:14PM -0800, Dmitry Torokhov wrote:
>> On Tue, Dec 01, 2015 at 02:18:49PM -0800, Sinclair Yeh wrote:
>> > v2:
>> > Instead of replacing existing VMMOUSE defines, only modify enough
>> > to use the new VMW_PORT define.
>> >
>>
2011 Mar 18
1
help please: put output into dataframe
Dear R community members
I have been struggling on this simple question, but never get appropriate
solution. So please help.
# my data, though I have a large number of variables
var1 <- rnorm(500, 10,4)
var2 <- rnorm(500, 20, 8)
var3 <- rnorm(500, 30, 18)
var4 <- rnorm(500, 40, 20)
datafr1 <- data.frame(var1, var2, var3, var4)
# my unsuccessful codes
nvar <- ncol(datafr1)
2008 May 07
2
Estimating QAIC using glm with the quasibinomial family
Hello R-list. I am a "long time listener - first time caller" who has
been using R in research and graduate teaching for over 5 years. I
hope that my question is simple but not too foolish. I've looked
through the FAQ and searched the R site mail list with some close hits
but no direct answers, so...
I would like to estimate QAIC (and QAICc) for a glm fit using the
2008 Feb 27
2
Sweave produces gibberish instead of apostrophe in pdf
Dear All,
I try to use Sweave to make a document. But when I use the Sweave()
command on it and build a pdf with pdflatex (3.141592-1.40.3) my
apostrophes are replaced by some gibberish (an 'a' with a hat on it, a
capital A with a arc pointing upwards on it and a capital Y with two
points on it). If I manually replace the apostrophes using the keyboard,
I get a different looking
2015 Dec 01
2
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 01, 2015 at 02:18:49PM -0800, Sinclair Yeh wrote:
> v2:
> Instead of replacing existing VMMOUSE defines, only modify enough
> to use the new VMW_PORT define.
>
> v3:
> Use updated VMWARE_PORT() which requires hypervisor magic as an added
> parameter
>
> Signed-off-by: Sinclair Yeh <syeh at vmware.com>
> Reviewed-by: Thomas Hellstrom <thellstrom
2015 Dec 01
2
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 01, 2015 at 02:18:49PM -0800, Sinclair Yeh wrote:
> v2:
> Instead of replacing existing VMMOUSE defines, only modify enough
> to use the new VMW_PORT define.
>
> v3:
> Use updated VMWARE_PORT() which requires hypervisor magic as an added
> parameter
>
> Signed-off-by: Sinclair Yeh <syeh at vmware.com>
> Reviewed-by: Thomas Hellstrom <thellstrom
2015 Dec 02
3
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 01, 2015 at 02:54:20PM -0800, Sinclair Yeh wrote:
> Hi,
>
> On Tue, Dec 01, 2015 at 02:45:27PM -0800, Dmitry Torokhov wrote:
> > On Tue, Dec 1, 2015 at 2:32 PM, Sinclair Yeh <syeh at vmware.com> wrote:
> > > Hi,
> > >
>
> <snip>
>
> > >> > */
> > >> > -#define VMMOUSE_CMD(cmd, in1, out1, out2,
2015 Dec 02
3
[PATCH 3/6] Input: Update vmmouse.c to use the common VMW_PORT macros
On Tue, Dec 01, 2015 at 02:54:20PM -0800, Sinclair Yeh wrote:
> Hi,
>
> On Tue, Dec 01, 2015 at 02:45:27PM -0800, Dmitry Torokhov wrote:
> > On Tue, Dec 1, 2015 at 2:32 PM, Sinclair Yeh <syeh at vmware.com> wrote:
> > > Hi,
> > >
>
> <snip>
>
> > >> > */
> > >> > -#define VMMOUSE_CMD(cmd, in1, out1, out2,
2012 Apr 09
3
For loops
Hi,
I am having trouble with syntax for a for loop. Here is what I am trying to
do.
class=c(rep(1,3),rep(2,3),rep(3,3))
out1=rnorm(length(class))
out2=rnorm(length(class))
out3=rnorm(length(class))
data=data.frame(class,out1,out2,out3)
dat.split=split(data,data$class)
for(i in 1:3){
sub[i]=dat.split[i]
}
However, the for loop doesn't work. I want to assign each split to a
different
2007 Dec 27
1
A function for random test based on longest run (UNCLASSI FIED)
Classification: UNCLASSIFIED
Caveats: NONE
Thanks for your quick response. The program you mentioned below available
from R is based on number of runs (up or down) not based on a longest length
of runs of same events. To be more specific, for example, from a series,
HHTHTTTTHHH, the number of runs are 5, and the longest length of runs of the
same events is 4. I'll check for the website you