2012年8月30日 · In R, I have an operation which creates some Inf values when I transform a dataframe. I would like to turn these Inf values into NA values. The code I have is slow for large data, is there a faster way of doing this? Say I have the following dataframe: dat <- data.frame(a=c(1, Inf), b=c(Inf, 3), d=c("a","b")) The following works in a single case:

Inf, NA and NaN are matched by !is.finite, for example. a <- c(1, Inf, NA, NaN) a[!is.finite(a)] <- 0 # a is now [1, 0, 0, 0] I don't know too much about manipulating zoo objects, but for the example above. log_ret[1, !is.finite(log_ret)] <- 0 works. In your actual data you will have to loop over all rows. There might be a zoo-specific way of ...

2012年1月1日 · In general, the warnings about NA/NaN/Inf from randomForest are not caused by NA/NaN/Inf, but in fact by character data. – smci Commented Nov 15, 2014 at 3:49

2016年4月13日 · Some of the rows contains NA,NaN,Inf,-Inf values in single or multiple variables and I have used na.omit(df) to remove rows with NA and NaN but I cant remove rows with Inf and -Inf values using na.omit function.

2013年3月19日 · In R language, there are two closely related null-like values: NA and NULL. Both are used to represent missing or undefined values. Both are used to represent missing or undefined values. NULL represents the null object, it's a reserved word.

I was referring to R booleans being 32-bit integers at the C level, not that is.integer(TRUE) would return TRUE. – Joshua Ulrich Commented Sep 25, 2011 at 15:10

2013年3月13日 · Omit inf from row sum in R. Ask Question Asked 12 years ago. Modified 11 years, 5 months ago. Viewed 16k ...

2015年5月20日 · The documentation clearly says "do not test equality to NaN", though it doesn't mention anything regarding Inf – David Arenburg Commented May 20, 2015 at 17:57

change Inf to NA also and as is.Na(NaN) is TRUE also, simply use the na.rm= TRUEin mean Function or change all to zero and then calculate the mean function. values that I want to calculate mean for are the values comes from measuring conductance and expansion for community detection algorithm as defined here

2020年9月1日 · Desired result is a new data frame with the rows that contain Inf values, in the case of blah, rows 1 and 8. How can I filter a data frame to return all rows where any of them contain Inf? r