Try this:
# install package HelpersMG from CRAN including dependencies
install.packages("HelpersMG")
# Update to the lastest version
install.packages("http://www.ese.u-psud.fr/epc/conservation/CRAN/HelpersMG.tar.gz";,
repos=NULL, type="source")
# Use the function read_folder()
library("HelpersMG")
content_as_list <- read_folder(folder =
"C:/Research3/simulation1/second_gen", wildcard = "*.csv",
read = read.csv)
I have created this function because I had exactely the same poblem that
you described !
Sincerely,
Marc
Le 06/02/2016 06:53, Reka Howard a écrit :
Hello,
I have over 1000 csv data sets I need to read into R, so I want to read
them in using a loop. The data sets are named as
pheno_1000ind_4000m_add_h70_prog_1_2.csv,
pheno_1000ind_4000m_add_h70_prog_1_3.csv, ... so I need 2 loops (for the
last 2 numbers in the names). What I would like to do is the following:
setwd("C:/Research3/simulation1/second_gen")
d1<-read.csv("pheno_1000ind_4000m_add_h70_prog_1_2.csv")
d2<-read.csv("pheno_1000ind_4000m_add_h70_prog_1_3.csv")
d3<-read.csv("pheno_1000ind_4000m_add_h70_prog_2_3.csv")
.
.
.
I am wondering how I can accomplish this with a loop. Any suggestion is
appreciated!
I tried the following but it does not work:
data <- lapply(
paste(("C:/Research3/simulation1/second_gen/pheno_1000ind_4000m_add_h70_prog_",[1:2],"_",[2:3],".csv",sep=''),
read.csv, header=TRUE, sep=',' )
names(data) <- paste("d", LETTERS[1:3], sep='')
Thanks!
Reka
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