search for: brahmachary

Hello, I have a matrix with 6 columns and 12 rows. I want to extract out those IDs (rownames) from my matrix which have a negative values. For each ID(row) if the negative value is even under 1 column it needs to be extracted out. I will be grateful for any correct suggestion. Thanks Manisha Here is the matrix that I am working on: ID A B C D E F 1 -4.18972 -3.8946

Hello, I will appreciate any suggestion for this simple problem. I have a matrix of characters "A", "P", "M". I want to convert those characters to integers 0,1, 1 respectively. I am using the following R statements: exprs.new<-gsub("P",1,exprs) exprs.new1 <- gsub("A",0,exprs.new) exprs.new2 <-

Hello, I am trying to do a spearman correlation. My data has tied values. To overcome this issue, I am adding some random noise (values) to my original data. However when I add the random noise to the data, the final matrix does not show the new values. I guess the reason being that the noise I add is very small and the full value including the decimals gets truncated to show only the value

Hello, I am trying to calculate the median of numbers across each row for the data shown below , with the condition that if the number is negative, that it should be ignored and the median should be taken of only the positive numbers. For eg: data is in Column A,B,C. Column D and E demonstrates what I want to get as answer A B C Median median value -13.6688115 -32.50914055

Hi, I am having troubles with creating an eSet and would appreciate any help on the following problem. I am trying to create an eSet using the following code pd <- read.table(file="pdata.txt",header =TRUE,row.names=1); colnames(pd) <- c("type","tumor","time","id"); pdN <- list(type =

...tic hazard estimation (chenjiakai) > 38. Re: RPostgreSQL segfault with LEFT JOIN (Joe Conway) > 39. Re: Journal Articles that Have Used R (Jonathan Baron) > 40. stars (as fourfold plots) in plot (symbols don't work) (maiya) > 41. extract rows having negative values (Manisha Brahmachary) > 42. Convert a lis to matrix (Manisha Brahmachary) > 43. Re: extract rows having negative values (Bill.Venables at csiro.au) > 44. Re: EBImage not loading (Gregoire Pau) > > > ---------------------------------------------------------------------- > > Message: 1 >...

Hi, I have a query regarding usage of hist (histogram) function in R. I have a data where the range of the x -axis is from 0.0-1.0. When I use hist the ticks on the x-axis it gives me by default is at 0.0,0.2,0.4,0.6,0.8 and 1.0. If I want more ticks such that the x-axis has 0.0,0.1,0.2,0.3...till 1.0 what parameter should I use in the hist function? Thanks manisha

Hello, I have a question about running R in a cluster environment. The shell script I am running looks like this: #!/bin/bash cd /nfs/apollo/2/c2b2/users/mb0001/Data /nfs/apollo/1/shares/software/core_facility/local/x86_64_rocks/R/current/bin/ R --save < calculate.R >& script.out I have used the "-save" command to save the R workspace (If, I understand it

Hello, This is an urgent request. I want to convert a list of 3 elements into a matrix and I am not sure how to do it. The list looks like this: List of 3 $ : num [1:15364, 1] 0.133 0.622 0.588 1.024 0.583 ... ..- attr(*, "dimnames")=List of 2 .. ..$ : chr [1:15364] "6420681" "3610072" "2260458" "60689" ... .. ..$ : NULL $ :

Problem################################################################# I am having a problem combining a matrix and elements of a list into one data frame. Data#################################################################### The matrix is ludwig.results and dim of matrix is 213,8. The list is called symbols and its length is 213. Following is an example the structure of my matrix

Hello, I will be very obliged if someone can help me with this statistical R problem: I am trying to do a Pearson correlation on my datasets X, Y with randomization test. My X and Y datasets are pairs. 1. I want to randomize (rearrange) only my X dataset per row ,while keeping the my Y dataset as it is. 2. Then Calculate the correlation for this pair, and compare it to your true

...Looping with incremented object name and increment function (Greg Snow) 68. Re: complex transformation of data (Den) 69. Help with LMSreg (eniven) 70. TRADUCING lmer() syntax into lme() (Freddy Gamma) 71. building package (las65@buffalo.edu) 72. Re: Pearson correlation with randomization (Brahmachary, Manisha) 73. glitch in building R package (Horace Tso) 74. Re: building package (Duncan Murdoch) 75. Re: complex transformation of data (Den) 76. Re: How to find data that includes certain values (Den) 77. lm(y ~ x1) vs. lm(y ~ x0 + x1 - 1) with x0 <- rep(1, length(y)) (jochen laubroc...

Hello, I am trying to run a code (see reference section) and when I run the line: fit<-lmFit(xen1dataeset,design), I get the error message: Error in lm.fit(design, t(M)) : incompatible dimensions I will really appreciate if someone can help me understand this error message and possibly help me debug the problem. Thanks manisha Reference section xen1data<-ReadAffy()