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Hello, I'm trying to import into R files that contain data downloaded from logger devices as files with the following formats: .act .lig .trj .trn These files are essentially text files but use both tabs and commas as separators. I've tried the function scan: 1) scan("filename.act", what=character(0)) returns only two columns from the original 5 2) scan("copia.act",

Hello, ? I have to create a new column from the values of other columns of a data frame. The new?column (y$n) is created imposing a condition (using a third variable y$h) that assigns the values of two time variables (y$b and y$timepos). Here's the piece of code to get there (using the attached files): ? xact <- read.table("act.lig", sep = ',',

Hi, ? I'm trying to carry out Cramer von Mises tests between pairs of vectors belonging to a discrete distribution (concretely frequencies from 0 to 200). However, the program crashes in the attempt. The problem seems to be that these vectors only have positive integer numbers (+ zero). When I add a random very small positive decimal to the non-decimal part everything works fine (files prm1

Hi,   I have a dataset which contains several time records for a number of days, plus a variable (light) that allows to determine night time (lihgt= 0) and daytime (light> 0). I need to obtain get dusk time and dawn time for each day and place them in two columns. This is the starting point (d): day time light 1     1       20 1     12     10 1     11     6 1     9       0 1     6       0

Hi, I have a data.frame that contains a variable act which records the duration (in seconds) of two states (wet-dry) for several individuals (identified by Ring) over a period of time. Since I want to work with daytime (i.e. from sunrise till sunset) and night time (i.e. from sunset till next sunrise), I have to split act from time[i] till sunset and from sunset until time[i+1], and from time[k]

I?m trying to insert 8 jpg files with the main moon phases in a plot using read.image. My code: ? ## Images ? library(ReadImages) c1 = read.jpeg( '1c.jpg' ) c2 = read.jpeg( '2c.jpg' ) c3 = read.jpeg( '3c.jpg' ) d1 = read.jpeg( '1d.jpg' ) d2 = read.jpeg( '2d.jpg' ) d3 = read.jpeg( '3d.jpg' ) f = read.jpeg( 'f.jpg') n = read.jpeg(

My data frame shows changes on the variable act which records the consecutive duration (in seconds) of two states (wet-dry) over a few days for several?individuals (identified by Ring). Since I want to work with daytime (i.e. from dawn till dusk) and night time (i.e. from dusk till next dawn), I have to split act in two: from time[i] till dusk and from dusk until time[i+1], and from time[k] till

Hello,   I'd like to generate automatically all the possible combinations of a set of 8 variables (there are 535, too many to do it by hand). For example:   input: varA, varB, varC output: varA+varB+varC             varA+varB             varA+varC             varB+varC             varA             varB             varC Is there any function that produces this option?   Thank you [[alternative

Hello, I'm having problems working with date values in POSIXct format. Here is what I got (eg.lig attached): x <- read.table("eg.txt", sep = ',', col.names=c("ok","time","secs","lig")) # it gives time as factor z <- cbind(x,colsplit(x$time, split="\\s", names=c("date", "clock")))