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$\begingroup$ 
 list1 = OpenRead[
   "/home/sachin/Downloads/mam_code_evans/neutral_fix/n_t/nt.txt"];
 dataa = ReadList[list1, {Number, Number, Number}];
y1 = dataa[[All, 2]];
y2 = Table[1000, {i, 1, 100000}];
 y3 = Flatten[{y1, y2}];

I have 100 nt1.txt, nt2.txt, nt3.txt ... How to read these 100 files and save them in a 100 lists (in a loop) and then take average?

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  • $\begingroup$ Maybe you can try the manipulation on list of strings. Use Table or some functions to build a list with elements are path and name of your data. Then finally map OpenRead over it. $\endgroup$
    – swish47
    Oct 26, 2022 at 20:28

1 Answer 1

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Read the data with memoization instead of reading/saving manually in variables:

Clear[data];
data[n_Integer?Positive] := data[n] = 
  ReadList["~/Downloads/mam_code_evans/neutral_fix/n_t/nt" <> 
           ToString[n] <> ".txt", {Number, Number, Number}]

Now we can load them and take the average (no need to save them to list; this is done internally in Mathematica):

Array[data, 100] // Mean
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  • $\begingroup$ This is not of much use to me. I want using the way i asked in the question. Because then i have to use the data somewhere else. $\endgroup$
    – Sachin Kaushik
    May 31, 2022 at 6:42
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    $\begingroup$ You can use data[51] fror example in any other place you want. Or store A = Array[data, 100]. Or... $\endgroup$
    – Roman
    May 31, 2022 at 8:13

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