search for: biologist

I am a Biologist and a beginner, please help me to solve this: please anyone..its my homework and I dont have a clue abt R yet.. Write a function which does the following tasks: (a) Calculates minimum and maximum value of a given argument x. (b) If x is positive, some new vector gets the value of TRUE, and FALS...

...r All, We have two computational biology positions to advertise - details below: Crispin ---- The Paterson Institute for Cancer Research (www.paterson.man.ac.uk<http://www.paterson.man.ac.uk/>), an Institute of The University of Manchester, seeks two (one senior, one junior) computational biologists to join the Applied Computational Biology and Bioinformatics Group (ACBBG). The Paterson Institute is one of Europe?s premier cancer research centres and is core-funded by Cancer Research UK, the world?s largest independent cancer research charity. Our juxtaposition to The Christie NHS Foundation...

 Hi, What's the equivalent of "Save to File" from the R console File menu on an R routine? Just trying to capture the whole R console into a text file when my code fails. Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA http://www.fws.gov/redbluff/rbdd_jsmp.aspx [[alternative HTML version deleted]]

Hi, I hope you don't mind me posting this to the list: We are seeking a postdoctoral scientist to join the Applied Computational Biology and Bioinformatics group at the Paterson Institute for Cancer Research. The role will be to develop novel approaches for the analysis of high throughput genomic data, such as those arising from Affymetrix microarray experiments. We are an

...ws(weekly$a) i but returns 7 when it should be 4. Thanks a b c d 27.000 27.000 1.569 0.013 160.000 27.000 1.632 0.013 146.000 27.000 1.830 0.015 70.000 27.000 2.475 0.019 156.000 27.000 27.000 Felipe D. Carrillo Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA ____________________________________________________________________________________ Be a better friend, newshound, and

...ecies',  colours = rainbow(6), breaks = c(2, 4, 6, 8, 10, 12, 14, 16, 18, 20))+  xlab("Longitud") + ylab("Latitud") + opts(axis.text.x = theme_text(size = 8, vjust = 1)) +  opts(axis.text.y = theme_text(size = 8, hjust = 1))        Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA http://www.fws.gov/redbluff/rbdd_jsmp.aspx > >From: Manuel Spínola <mspinola10@gmail.com> >To: Felipe Carrillo <mazatlanmexico@yahoo.com> >Sent: Sat, April 2, 2011 11:22:24 PM >Subject: Re: anoth...

...e(aes(colour=variable))+ opts(legend.position="none") + facet_wrap(~variable,ncol=2) + opts(title="Winter") + labs(y="Number of fish X 1,000",x="WEEK")) @ \caption{Weekly estimates.} \label{figure:ggplot1} \end{figure} ? Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA ? Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA

Hi- I'm a biologist trying to figure out the growth rate of salamanders in different ponds. I collected individuals from various populations at different dates, and using the size and date collected, I want to figure out the growth curve of each population. My question is: How do I fit my data to a Gompertz function i...

...ing: unable to access index for repository http://R-Forge.R-project.org/bin/windows/contrib/2.10 Warning message: In getDependencies(pkgs, dependencies, available, lib) : ? package ?gridextra? is not available I would like to download the binary for windows Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA

...ant to test the model fir via bootstraping. I have used the jacknife bootstraping but it have the limitation of allowing only 58 trials. I tried to use the bootstrap function in R but I couldn;t understand the help file description. Please forgive my novice with such advance statistics since I am a biologist. I would appreciate any help on advicing on how to use the bootstrap function in R. Thanks in advance Husam El Alqamy ---------------------------------------- Biologist Ranger St. Katherine Protectorate South Sinai, EGYPT ---------------------------------------- tel 002-069-470032 Fax 002-069-470...

Dear all, I am a biologist. I have two sets of distance P(start1, end1) and Q(start2, end2). The distance will be like this. P ------------------------ Q ---------------------------------------- I want to know whether P falls closely to the right end or left end of Q. P and Q are of different lengths for each dat...

Hi, I'm a biologist, so please forgive me if my question sounds absurd! I have 3 parameters x1, x2, x3 and a response variable y.The sample size is 75. I tried to do the following: mylm<-lm(y~ x1 + x2 + x3, data="mydata") but i can only get stats from anova for the first 2 variables. The third comes up a...

I am starting to use R for almost any sort of calculation that I need. I am a biologist that works in the states, and there is often a need to convert from standard units to metric units. Is there a package in R for this already? If not I believe that I am going to write some of the most often used in function form. My question is should I include this in my StreamMetabolism packag...

....method = qspline quantiles loess pmcorrect.method = pmonly subtractmm mas summary.method = liwong avgdiff medianpolish mas There are many options within each method. I would appreciate a hint on the best combination. Thank you very much in advance. Roger Roger L. Vallejo, Ph.D. Computational Biologist & Geneticist U.S. Department of Agriculture, ARS National Center for Cool & Cold Water Aquaculture 11861 Leetown Road Kearneysville, WV 25430 Voice: (304) 724-8340 Ext. 2141 Email: roger.vallejo@ars.usda.gov http://www.ars.usda.gov/pandp/people/people.htm?personid=37662 [[alternative HT...

...AreaPoly2" value, but only if Veg1=Veg2. For this example, the desired dataset would be P1id Veg1 Veg2 AreaPoly2 P2ID 1 p p 1.5 2 2 p p 2 3 Can anyone point me in the right direction on this? Dr. Seth W. Bigelow Biologist, USDA-FS Pacific Southwest Research Station 1731 Research Park Drive, Davis California [[alternative HTML version deleted]]

...ng it to checkBuilt=FALSE do not return errors. > update.packages(checkBuilt=TRUE, ask=FALSE) --- Please select a CRAN mirror for use in this session --- Error: invalid version specification NA > update.packages(checkBuilt=TRUE) Error: invalid version specification NA Peter Keller Wildlife Biologist Tetlin National Wildlife Refuge [[alternative HTML version deleted]]

Dear list, I have a text file from a scanner that includes 20 lines of text (scanner settings) before it actually starts showing the readings in a tabular format (headings are ID, intensity, background and few others). I am a biologist with some experience using R and my question is if it is possible to read this file into an R workspace and store the actual readings in a dataframe, avoiding the text at the begining. It seems to me that this is not the actual purpose of R, but maybe someone can point me to a method for do...

...ryer Time Series Analysis and Its Applications: With R Examples by Robert H. Shumway and Robert H. Shumway Introductory Time Series with R (Use R) by Paul S.P. Cowpertwait and Andrew V. Metcalfe I would like to receive any suggestion of which is most appropriate for a non-statistician (I am a biologist). Reading only the index I could not evaluate it. Thanks in advance, Antonio Olinto Marine Fisheries Center Sao Paulo Fisheries Institute Brazil

Hi, I am looking for a R package to draw 3d plot. But not in a static way like scatterplot3d or stuff like that. I would like to make rotate the plot, to zoom/unzoom etc..., actually to render the graph 'dynamic'... (for the biologist and bioinformatician, a R package which permitts to reproduce what pdb viewer does). Does a Way exist to do something like that in R ? Thanks, _________________________________________________________________ Inédit ! Des Emoticônes Déjantées! Installez les dans votre Messenger ! [[alternat...

...e - hence my posting to this list... I've included brief details below -- there's more information in the jobs section of our website (http://bioinformatics.picr.man.ac.uk) Cheers, Crispin ---- Postdoctoral Scientist - specialist in transcription A position is available a computational biologist with significant experience analysing high throughput genomic data including, for example, expression, tiling and SNP arrays, to develop novel software and strategies for the latest generation of genomics data. Postdoctoral Scientist - pathway specialist A position is available for a computationa...