similar to: Linear model, finding the slope

Displaying 20 results from an estimated 1700 matches similar to: "Linear model, finding the slope"

2009 Apr 07
6
Sequences
Hi, I am trying to make a sequence and am using a for loop for this. I want to start off with an initial value ie S[0]=0 then use the loop to create other values. This is what I have so far but I just keep getting error messages. #To calculate the culmulative sums: s<-rep(0,207) #as this is the length of the vector I know I will have s<-as.vector(s)
2004 Jan 22
1
Calculation of normalised red and green intensities
Dear Sir/Madam, I could succesfully normalise my microarray data using marrayNorm package. However, i have not been able to get normalised red and green channel intensities through R package. Is there a possibility to write a formula to calculate back the red and green channel intensities after normalisation of the data. Do I need to incorporate this formula in my R script? I am biologist
2009 Apr 10
3
turning list into vector/dataframe
Hi, I have used this command : resamples<-lapply(1:1000,function(i) sample(lambs,replace=F)) resamples2<-lapply(resamples,Cusum) to get a list of 1000 samples of my data. The function Cumsum is defined as follows: Cusum<-function(x){ SUM<-cumsum(x)-(1:length(x))*mean(x) min<-min(cumsum(x)-(1:length(x))*mean(x)) max<-max(cumsum(x)-(1:length(x))*mean(x)) diff<-max-min
2014 Oct 16
3
Continuous Normalisation error for attribute whenCreated when performing dbcheck
Hi all, since the migration of our old Win2k domain to Samba4 some years ago I get a lot of errors like the following when doing a "samba-tool dbcheck --cross-ncs --fix" : ERROR: Normalisation error for attribute whenCreated in CN=rpc-Ns-Group,CN=Schema,CN=Configuration,DC=samdom,DC=com value '19700101000000.0Z' should be '16010101000000.0Z' Fix normalisation for
2009 Jul 03
2
normalised curve fitting with error bars
Dear List, My data consist of nine columns and about 50,000 rows. It looks like this. -9.0225 3.46464 2.80926 -0.3847 3.73735 1.1058 -2.98936 1.38901 -8.1846 -2.4315 -5.1189 1.8225 3.3798 1.7874 4.693 -3.9286 1.4266 5.7849 -3.4894 -4.0305 3.7879 3.5195 2.9186 2.8685 -6.126 4.978 4.9381 4.5282 3.62558 -3.0455 4.6518 1.39746 0.68652 3.5708 -3.6404 -4.2963 -1.3183 0.6752 -4.0382 -2.5386
2009 May 13
2
converting numeric into character strings
Hi, Im trying to put some numbers into a dataframe , I have a list of numbers (change points in a time series) like such [1] 2 11 12 20 21 98 99 but I want R to recognise this as just a character string so it will put it in one row and column, ideally I want them seperated by commas so I would have for example Person Change points (seconds) A
2007 Nov 09
3
Normalizing grouped data in a data frame
Hi I am a newbie to R but have tried a number of ways in R to do this and can't find a good solution. (I could do it out of R in perl or awk but would like to know how to do this in R). I have a large data frame 49 variables and 7000 observations however for simplicity I can express it in the following data frame Base, Image, LVEF, ES_Time A, 1, 4.32, 0.89 A, 2, 4.98, 0.67 A, 3, 3.7, 0.5
2008 Dec 10
4
tapply within a data.frame: a simpler alternative?
Dear list, I have a data.frame with x, y values and a 3-level factor "group", say. I want to create a new column in this data.frame with the values of y scaled to 1 by group. Perhaps the example below describes it best: > x <- seq(0, 10, len=100) > my.df <- data.frame(x = rep(x, 3), y=c(3*sin(x), 2*cos(x), > cos(2*x)), # note how the y values have a different
2002 Oct 01
2
RE: Hlp in finding a native Ogg trim, fade & nomalise tool
Hi John A trimer/vcut type application is possible but unfortunately not a fade/normaliser. Not without decoding/encoding. I asked about this a couple of years ago. Unlike MP3, the Ogg Vorbis format doesn't store a global gain setting per frame. I have often downloaded MP3 files from mp3.com and other sources for broadcasting, and with the type of music I need, it is often not normalised
2016 Mar 12
4
samba-4.3.6 and talloc-2.1.6
I build new version of talloc-2.1.6 (build from external tarball) and samba-4.3.6. But if I provision domain by command samba-tool domain provision --realm=test.alt --domain test --adminpass='Pa$$word' --dns-backend=SAMBA_INTERNAL --server-role=dc --use-rfc2307 --use-xattrs=yes I got error: Fixing provision GUIDs ERROR(runtime): uncaught exception - pytalloc_reference_ex() called for
2006 Nov 17
3
Trellis Plot Labels
Hello everyone, I am ploting a groupeddata object with formula: formula(mydatausegroup) BF ~ HO | ID/Infar/Day Using this command: plot(na.omit(mydatausegroup), displayLevel=2,layout=c(10,2),aspect=2) This trellis plot does almost what I want and produces a 10x2 trellis plot, each panel is labeled as ID/Infar where infarct is either 1 or 0. And in each panel, it plots BF vs HO for each Day.
2004 Oct 10
3
some help interpreting ANOVA results, please?
On Sun, 10 Oct 2004, RenE J.V. Bertin wrote: > Could I ask some hints/help in interpreting the following ANOVA results, > please? This concerns an experiment where I study the incidence and > severity of motion sickness. I have Sickness.norm, a subjective > discomfort/sickness estimate, normalised to 0..1, the session time T > (normalised to 0..1 and binned in 0.2 wide bins) and a
2008 Nov 17
1
HELP ON SCALING GENE EXPRESSION DATA TO -1,0,1
Hello R-Community, I am a rookie in R and I am fascinated with the power of bio computing by R. I am analysing gene expression data from Real time PCR. I have used absolute gene quantitation to measure gene copy number in all my transcripts. All my data has been normalised them to a housekeeping gene, which is constitutive expressed. My problem is as follows. After normalising some of the genes
2005 Sep 09
1
Using IR port in Wine
Hi... i have a PDA and i sinchronize it in windows using my IR port. I would like to know if i can use a IR port in wine and how can i assign a COM port in wine. Regards Joaqu?n
2011 Jun 24
1
[LLVMdev] Source Feature Extraction
Hi All, I am new to LLVM. One of the things I would like to do is to try and extract source features (e.g. a normalised distribution of the various type of instructions in each function.), can anyone point me to a good way of doing that? If it is not already implemented do you think creating a feature Extraction pass and passing it as an optimisation pass would be the way to go? Cheers, Sameer --
2008 Sep 25
1
Transformation for -ve binomial data
Can anyone advise a good transformation for this data below to produce a normalised distribution? Many thanks, Georgina No. of eggs on mosquito gut: 1 12 1 12 6 17 54 1 12 2 22 27 1 27 1 1 6 24 10 54 12 5 27 68 1 4 6 27 1 1 1 1 68 1 7 1 10 5 4 1 7 9 3 19 22 10 4 PhD Student Division of Infection and Immunity B5-29, GBRC 120 University Place Glasgow G12 8TA Tel: 0141 330
2010 Jun 16
1
prcomp() and the lenght of PC:s
Hi, I would like to know whether there is some deeper rationale behind or is it just an established practice that the lenghts of principal components, giving for example by prcomp-function, are normalised to 1? Best regards, Atte Tenkanen University of Turku, Finland Department of Musicology +35823335278 http://users.utu.fi/attenka/
2013 Feb 21
2
package ReadImages
Dear all I prepared some image processing routine which depended on package ReadImages. Basically I imported image to R, changed rgb to grayscale, normalised an image made some selections and changed to image by imagematrix. Recently I learned that this package was removed from CRAN and can not be used in R 3.0.0. What options I have now to import image to R, change it to grayscale, make some
2008 Aug 11
2
sampling
Hello, I have a matrix and I want to sample 20 rows that are the the percentiles of 0-100 in 0.05 increments. I have a vector of my sequence (0, 0.05, 0.10, 0.15,....1.0) and also a normalised vector of rownumbers. That is, there are 234 rows (for example) so I do perc<-c(1:234/234) which looks like a bunch of numbers from 0 - 1. In Excel (which I try not to use at every possible
2011 Nov 07
1
repeating a loop
Hi I have implented boxplots in my script to create box plots BoxplotsCheck <- readline(prompt = "Would you like to create boxplots for any Feature? (y/n):")   if (BoxplotsCheck  == "y"){     BoxplotsFeature <- readline(prompt = "Which Feature would you like to create a Boxplot for?:")     BoxplotsFeature <- as.numeric(BoxplotsFeature)     BoxplotsData