[R] How to globally convert NaN to NA in dataframe?

[Luigi Marongiu]

Hello,
I have some NaN values in some elements of a dataframe that I would
like to convert to NA.
The command `df1$col[is.nan(df1$col)]<-NA` allows to work column-wise.
Is there an alternative for the global modification at once of all
instances?
I have seen from
https://stackoverflow.com/questions/18142117/how-to-replace-nan-value-with-zero-in-a-huge-data-frame/18143097#18143097
that once could use:
```

is.nan.data.frame <- function(x)
do.call(cbind, lapply(x, is.nan))

data123[is.nan(data123)] <- 0
```
replacing o with NA, but I got
```
str(df)
> logi NA
```
when modifying my dataframe df.
What would be the correct syntax?
Thank you



-- 
Best regards,
Luigi