Scripts
From mn.ibv.aqua
Here you will find a collection of scripts and code snippets used in R, Python and other programming languages.
R scripts
Ecotoxicology
Comet assay
Some helpful commands to read in all comet assay files simultaneously. Remember to convert the protected .xls
files to .csv
files, e.g. using LibreOffice[1].
- In R, navigate to the folder containing your
.csv
files using thesetwd()
command. - Read in the tail intensity of the
.csv
files using the following command:pre.data <- data.frame(sapply(list.files(pattern = "*.csv"), FUN = function(x) { read.csv(x, sep = ";", dec = ",")$Tail.Intensity }))
, but remember that you may have to adjust the separator and decimal characters. - Calculate the median values of the 50 comets scored per sample:
pre.data <- sapply(pre.data, FUN = "median")
. - Convert the data to a column-based data frame:
data <- data.frame(Tail.Intensity = stack(pre.data)[ , 1]
. - Remember to add the necessary columns, describing e.g. concentration, locations, or treatments before further analysis.
Python
Linear filming robot. This script allows to film up to 10 bottles. It will move from bottle to bottle and film each of the bottles for a specified number of seconds (HERE variable name).