How to suppress warnings globally in an R Script

Question

I have a long R script that throws some warnings  which I can ignore  I could use   suppressWarnings expr    for single statements  But how can I suppress warnings in R globally  Is there an option for this

User · Answer

Have a look at  options and use warn   options  warn   -1

User · Answer

I have replaced the printf calls with calls to warning in the C-code now  It will be effective in the version 2 17 2 which should be available tomorrow night  Then you should be able to avoid the warnings with suppressWarnings   or any of the other above mentioned methods   suppressWarnings   your code

User · Answer

You could use  options warn -1    But note that turning off warning messages globally might not be a good idea   To turn warnings back on  use  options warn 0     or whatever your default is for warn  see this answer

User · Answer

You want options warn -1   However  note that warn 0 is not the safest warning level and it should not be assumed as the current one  particularly within scripts or functions  Thus the safest way to temporary turn off warnings is   oldw  lt - getOption  warn   options warn   -1    your  silenced  code   options warn   oldw

[r] How to suppress warnings globally in an R Script

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