[R] handling breaks in a for loop

[akshay kulkarni]

dear Tim,
                I have not yet ran the function. I just wanted to be prepared. The data is the html document and the code is the scraping code, but the point is, the error might be from neither data nor code, but due to the inconsistencies in the web page. THis can happen however perfect I make my code. I think save () function in the body might save me, but any other faster method?

Thanking you,
Yours sincerely,
AKSHAY M KULKARNI
________________________________
From: Ebert,Timothy Aaron <tebert using ufl.edu>
Sent: Monday, February 7, 2022 12:33 AM
To: akshay kulkarni <akshay_e4 using hotmail.com>; R help Mailing list <r-help using r-project.org>
Subject: RE: handling breaks in a for loop

Is the bug in the data or in the code?
Can you identify the cause? Can you get a subset of the data to find the bug using fewer resources?
If you can identify the root cause, then you can set an error trap.
If the error is a memory problem, they you either need to save, reallocate memory, or get more memory.

Tim

-----Original Message-----
From: R-help <r-help-bounces using r-project.org> On Behalf Of akshay kulkarni
Sent: Sunday, February 6, 2022 1:56 PM
To: R help Mailing list <r-help using r-project.org>
Subject: [R] handling breaks in a for loop

[External Email]

dear members,
                         I have a very large for loop (basically a web scraping loop) with 500 iterations(over different stocks). I am concerned about the loop breaking midway.

My question is: is there any method to store the succesful iterations and continue with the iteration (ofcourse, after fixing the bug) where the exception occured? I can insert a save () function in the body of the loop and save the succesful iterations but this would slow down the execution speed. Any other method? I want to avoid trycatch as much as possible because an NA in the place of a succesful iteration would cost me much.

Thanking you,
Yours sincerely,
AKSHAY M KULKARNI

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