lapply function
You need the vectorizes ifelse() instead of if(). Also watch out for order of operations in the last line, and there is already a base R function named scale(). And spelling of arguments, of course.
On Saturday, May 30, 2015, Sohail Khan <sohail13 at gmail.com> wrote:
Hi R Gurus,
I am writing a simple function that take a numeric vector column from a
data frame and scales the vector column with certain criteria. I would
then pass this function to a list of dataframes by lappy.
Question is how do I write a function that works on a numeric vector. My
function as is, seems to work on the first element of the vector.
I.E.
scale
function(x,mn,max){
if (x==min(x)) 0
if (x==max(x)) 10
else x=max-min/10
}
where x is the numeric column of the dataframe.
Thank you.
Sarah Goslee http://www.stringpage.com http://www.sarahgoslee.com http://www.functionaldiversity.org [[alternative HTML version deleted]]