Thanks mark for pointing out my mistake and suggestion.I can get desired
output now
-Original Message-
From: Mark Sharp [mailto:msh...@txbiomed.org]
Sent: 20 October 2016 17:21
To: Indhira, Anusha
Cc: r-help@r-project.org
Subject: Re: [R] need help in customising function in
Indhira,
You have to assign cnt and new value in the loop if you want it to update in
the loop. However, to count the number of values of x > median(x), there are
multiple options. You are using a loop where none is needed in R, which has
many implicit vector functions that run with relational
Your code,
cnt = 0
for(i in 1:length(x)){
ifelse(x[i] > median(x),cnt+1,cnt)
}
sets cnt to zero and never sets it to anything else. Hence it is zero
at the end of the loop. if you set cnt to the value of your call to ifelse
you should get the desired result
cnt <- ifelse(x[i] > media
You do know that the median is defined as the point with half the values above
it and half below it? For even sample sizes it will always be 50%.
Your function is not working because you used the ifelse() function instead of
the programming command if() else:
> ?Control # Note the capital "C"
>
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