similar to: p-VALUE calculation

The dataframe is id salary 100 500 101 600 102 700 103 800 how can i generate a subsets if salary>600? -- View this message in context: http://r.789695.n4.nabble.com/Filtering-in-R-tp2299603p2299603.html Sent from the R help mailing list archive at Nabble.com.

Hello, I know this must be a very simple problem, but I can't work it out from the documentation that is available. I've got a list of data I would like to plot (the weights of a single neuron that was trained using the neural package). The problem I'm encountering is that this set of weights, are in the form of a list. > network$weigth[1] [[1]] [,1] [1,]

Dear R-friends, I have to simple questions. First I would like to exclude some columns from a dataframe and after I need select rows that satisfy some conditions. My data frame looks like Region Species Bodysize Weigth Age Africa Sp1 10.2 20 2 Africa Sp2 12.2 12 2 Africa Sp3 15.3 18 3 Africa Sp4 11.5 40 4 Brazil Sp1 10.2 40 3 Brazil Sp2 22.2 32 2 Brazil Sp3 12.3

1. how to write a R script? 2.How to write a SAS like macro/generic process to process multiple files by using the same funstion in R? Thanks in advance -- View this message in context: http://r.789695.n4.nabble.com/how-to-define-a-function-in-R-tp2280290p2280290.html Sent from the R help mailing list archive at Nabble.com.

I have 30 files in the current directories, i would like to perform the cbind(fil1,file2,file3,file4....file30) how could i do this in a for loop: such as: file2 <- list.files(pattern=".out3$") for (j in file2) { cbind(j).......how to implement cbind here } Thanks. -- View this message in context:

>myDF = data.frame(id=c("A10","A20"),d1=c(.3,.3),d2=c(.4,.4),d3=c(-.2,.5),d4=c(-.3,.6),d5=c(.5,-.2),d6=c(.6,-.4),d7=c(-.9,-.5),d8=c(-.8,-.6)) >doit=function(x)c(x[1],sum_LK_positive=sum(x[-1][x[-1]>0]),sum_LK_negative=sum(x[-1][x[-1]<0])) > myDF id d1 d2 d3 d4 d5 d6 d7 d8 1 A10 0.3 0.4 -0.2 -0.3 0.5 0.6 -0.9 -0.8 2 A20 0.3 0.4 0.5 0.6 -0.2

myDF: d1 d2 d3 d4 d5 -0.166910351 0.022304377 -0.00825924 0.008330689 -0.000925938 -0.166910351 0.022304377 -0.00825924 0.008330689 -0.000925938 -0.166910351 0.022304377 -0.00825924 0.008330689 -0.168225938 -0.166910351 0.022304377 -0.00825924 0.008330689 -0.168225938 -0.166910351 0.022304377 -0.00825924 0.008330689 -0.168225938 -0.166910351

hi all i have found the follwoing way to choose a random sample by sample size (200): ten_per_T2000 <- F_T2000_All[sample(nrow(F_T2000_All), 200), ] but i wondered if there is a way to choose a sample size by precentage (10% etc..) thx ethan

Here are what i am going to accomplish: I have 400 files named as xxx.txt. the content of the file looks like the following: name count 1. aaa 100 2. bbb 2000 3. ccc 300 4. ddd 3000 ........ more that 1000 rows in each files. these are the areas i need help: 1. how can i only read in the files with the string patterns ggg or fff as part of the file names? for

Hello. I don't understand a particular output of portfolio.optim (tseries). I have 4 assets and the portfolio.optim returns an asset with weight equals to zero. If I do a portfolio.optim with 3 assets, without the asset with weight equals to zero, it returns a completely different result. That's I would expected the same weights as the run with 4 assets. Below the code. Thanks in

Hello R-helpers: I have data like this: sample replicate height weight age A 1.00 12.0 0.64 6.00 A 2.00 12.2 0.38 6.00 A 3.00 12.4 0.49 6.00 B 1.00 12.7 0.65 4.00 B 2.00 12.8 0.78 5.00 C 1.00 11.9 0.45 6.00 C 2.00 11.84 0.44 2.00 C 3.00 11.43 0.32 3.00 C 4.00 10.24 0.84 4.00 D

Hi, I have a data.frame in wide format which I would like to reshape into a long format: example (nonsense) data: > dput(perus2) structure(list(id = c(30L, 38L, 21L, 12L, 22L, 28L, 31L, 44L, 8L, 47L, 23L, 20L, 41L, 42L, 29L, 50L, 5L, 33L, 4L, 17L, 11L, 1L, 18L, 6L, 9L, 32L, 16L, 14L, 39L, 48L, 37L, 43L, 25L, 27L, 35L, 40L, 45L, 49L, 2L, 34L, 10L, 15L, 24L, 26L, 46L, 7L, 13L, 3L, 19L, 36L),

Hi, I''m a newbie on both Ruby and Ruby on Rails, and I''m struggling with my first app. I have a table with a column called "employee_id" which is a foreing key associating it with the "employees" table. I have populated both tables. When I run "ruby script/generate scaffold <model name> <controller>" it generates a web page with all

how to use boxplot on all the columns from he date frame instead of manually entering the columns like below bhtest1 <- read.table("bhtest1.txt", header=TRUE) boxplot (bhtest1[,2], bhtest1[,3], bhtest1[, 4], bhtest1[,5], bhtest1[,6], bhtest1[,7]....) please help, Thanks, -- View this message in context:

I have a DF ID VALUE 100 120 101 100 102 100 103 104 105 .... when i calculate the sum of the values, it returned NA. should I populate the blank value as 0? Thanks, -- View this message in context: http://r.789695.n4.nabble.com/MISSING-VALUE-IN-R-tp2299586p2299586.html Sent from the R help mailing list archive at Nabble.com.

POS=sum(x[-1][x[-1]>0],na.rm=TRUE) is this the correct syntax? -- View this message in context: http://r.789695.n4.nabble.com/na-rm-TRUE-tp2299596p2299596.html Sent from the R help mailing list archive at Nabble.com.

I am trying to do things the proper rails way and use the auto generated id to refernce other tables. Now I''ve hit a wall in trying to write a query. timesheets: id, employee_id, code_id, ... values codes: id, job_number, code How can I show just the timesheets that belong to a specific job? I would need to check the codes table and look at the jobs, so I was thinking of something

Dear All, Does anybody have experience with R package pbatR (http://cran.r-project.org/web/packages/pbatR/index.html)? I am trying to use it to analyze the family-based case-control data, but the package totally doesn?t work on my computer. I contacted the authors of the package, but I haven?t heard anything from them. Following the package manual, I tried the simple example as below:

Hi, I have a standard type authentication technique direct from AWDWR, so there is a before_filter :authorize_employee, :except => :login in my employees_controller.rb the authorize_employee is in application.rb def authorize_employee unless session[:employee_id] flash[:notice] = "Please log in" # save the URL the user requested so we can hop

I''m trying to do a find that includes a join. It has to be a find because I''m using the results for a Pagination, so I need to limit my query to the number of results I want to display per page. Here''s the type of thing I want to do: Employee table <-> Skills_Employees table <-> Skills table Let''s say I want to find all the employees who have