I'm doing the following in order to import some txt tables and keep them as list:
# set working directory - the folder where all selection tables are stored
hypo_selections<-list.files() # change object name according to each species
hypo_list<-lapply(hypo_selections,read.table,sep="\t",header=T) # change object name according to each species
Error in a[1, 2] : incorrect number of dimensions
Indexing a list is done using double bracket, i.e.
hypo_list[] (e.g. have a look here: http://www.r-tutor.com/r-introduction/list). BTW:
read.table does not return a table but a dataframe (see value section in
?read.table). So you will have a list of dataframes, rather than a list of table objects. The principal mechanism is identical for tables and dataframes though.
Note: In R, the index for the first entry is a
0 like in some other languages).
l <- list(anscombe, iris) # put dfs in list l[] # returns anscombe dataframe anscombe[1:2, 2] # access first two rows and second column of dataset  10 8 l[][1:2, 2] # the same but selecting the dataframe from the list first  10 8
tbl1 <- table(sample(1:5, 50, rep=T)) tbl2 <- table(sample(1:5, 50, rep=T)) l <- list(tbl1, tbl2) # put tables in a list tbl1[1:2] # access first two elements of table 1
Now with the list
l[] # access first table from the list 1 2 3 4 5 9 11 12 9 9 l[][1:2] # access first two elements in first table 1 2 9 11