Extract a value from a dataframe iteratively (R)

I have a function to select a value from a dataframe. I want to select that value, save it, remove it from the dataset, and select a value using the same function from the remaining values in the dataframe. What is the best way to do this?

Here is a simple example:

V1 <- c(5,6,7,8,9,10)  df <- data.frame(V1)    V2 <- as.data.frame(matrix(nrow=3,ncol=1))    maximum <- function(x){    max(x)  }    V2[i,]<- maximum(df)    df <- anti_join(df,V2,by='V1')  

How can I set this up such that I reapply the maximum function to the remaining values in df and save these values in in V2?

(Also, I'm using a different and more complex set of functions and if/else statements than max - this is just an example. I do have to reapply the function to the remaining values, because I will be using the function on a new dataframe if df is empty).

https://stackoverflow.com/questions/65418499/extract-a-value-from-a-dataframe-iteratively-r December 23, 2020 at 11:04AM