[R] remove text from nested list

[Ek Esawi]

Thank you Bert and Peter. My apology for posting poor code. I cannot
create a reproducible example of my data, but i hope the list indices
as shown below helps you understand my question.. My regex pattern on
my previous post works correctly because i tested it on a few sublists
and it worked, but did not work for the all lists.
I tend to think a set of lapply and one apply function will work, but
not sure how to do that.

i tried, but obviously i don't understand nested apply functions.

> lapply(mylsit, function(x) gsub(pattern,"",x))
> lapply(mylist, function(x) lapply (x, function(y)  gsub(mypattern,"",y)))
> lappqaly(mylist, function(x) lapply (x, function(y) apply(y,2,gsub(mypattern,"",y))))


[[1]]

[[1]][[1]]
[[1]][[1]][[1]]
[[1]][[1]][[2]]
[[1]][[1]][[3]]

[[1]][[2]]
[[1]][[2]][[1]]
[[1]][[2]][[2]]

[[1]][[3]]
[[1]][[3]][[1]]
[[1]][[3]][[2]]

[[1]][[4]]
[[1]][[4]][[1]]
[[1]][[4]][[2]]
[[1]][[4]][[3]]
[[1]][[4]][[4]]
[[1]][[4]][[5]]

[[1]][[5]]
[[1]][[5]][[1]]
[[1]][[5]][[2]]
[[1]][[5]][[3]]
[[1]][[5]][[4]]

[[1]][[6]]
[[1]][[6]][[1]]
[[1]][[6]][[2]]
[[1]][[6]][[3]]

[[1]][[7]]
[[1]][[7]][[1]]
[[1]][[7]][[2]]
[[1]][[7]][[3]]

[[1]][[8]]
[[1]][[8]][[1]]
[[1]][[8]][[3]]
On Thu, Oct 25, 2018 at 9:34 PM Bert Gunter <bgunter.4567 using gmail.com> wrote:
>
> 1. Please learn how to use dput() to provide examples to responders. There's not much we can do with a text printout (at least without some work that I don't care to do).
>
> 2. Do you know what mylist[[c(1,2,1)]] means? If not, read ?(Extract) and note in particular:
> "[[ can be applied recursively to lists, so that if the single index i is a vector of length p, alist[[i]] is equivalent to alist[[i1]]...[[ip]] providing all but the final indexing results in a list."
>
> As your intent is unclear -- no reproducible example showing the desired result -- I would suggest just using list indexing to access the matrices you wish to change. But maybe this does not satisfy your vague request.
>
> Also, something seems screwy in the example you showed: For example, the [[1]][[2]][[1]] component indicates a 2 x 5 matrix, but I see only 3 columns of text. Am I missing something?
>
> Cheers,
> Bert
>
>
>
> On Thu, Oct 25, 2018 at 6:04 PM Ek Esawi <esawiek using gmail.com> wrote:
>>
>> Hi All—
>>
>> I have a list that contains multiple sub-lists and each sub-list
>> contains multiple  sub(sub-lists), each of the sub(sub-lists) is made
>> up of matrices of text. I want to replace some of the text in some
>> parts in the matrices on the list. I tried gsub and stringr,
>> str_remove, but nothing seems to work
>>
>> I tried:
>>
>> lapply(mylist, function(x) lapply(x, function(y)
>> gsub("[0-9][0-9]/[0-9[0-9].*com","",y)))
>> lapply(mylist, function(x) str_remove(x,"[0-9][0-9]/[0-9[0-9].*com"))
>>
>> Any help is greatly apprercaited.
>>
>>
>>
>> mylist—this is just an example
>>
>> [[1]]
>> [[1]][[1]]
>> [[1]][[1]][[1]]
>> [,1]  [,2]  [,3]  [,4] [,5]
>> [1,] "12/30 12/30"  "ABABABABABAB"  "8.00"
>> [2,] "01/02 01/02"  "AAAAAAAAAAAA”.   “99"
>> [3,] "01/02 01/02"  "CACACACACACC” "55.97"
>>
>> [[1]][[1]][[2]]
>> [,1]  [,2]
>> [1,] "12/30 12/30" "DDDDDDDDDDDDDDD” “29"
>> [2,] "12/30 12/30"  :GGGGGGGGGGGGGGG” “333”
>>
>> [[1]][[2]]
>> [[1]][[2]][[1]]
>> [,1]  [,2]  [,3] [,4]  [,5]
>> [1,]  "01/02 01/02" "ThankYou" “23”
>> [2,] "01/02 01/02"  "Standard data"  "251"
>>
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