3 messages · Haszun, David Winsemius, Patrick Burns
Why it always gives me a 3?
fun=function(x) {
+ if (x<-3) {
+ return(x)
+ } else {
+ if(x<2) {
+ return(x^2-1)
+ } else {
+ return(log(x))
+ }}}
fun(-5)
[1] 3
fun(0)
[1] 3
fun(10)
[1] 3
fun(-10)
[1] 3
-- View this message in context: http://r.789695.n4.nabble.com/Problem-with-if-tp4649180.html Sent from the R help mailing list archive at Nabble.com.
Why it always gives me a 3?
fun=function(x) {
+ if (x<-3) {
The above code assigns 3 to x.
+ return(x)
+ } else {
+ if(x<2) {
+ return(x^2-1)
+ } else {
+ return(log(x))
+ }}}
fun(-5)
[1] 3
fun(0)
[1] 3
fun(10)
[1] 3
fun(-10)
[1] 3
-- View this message in context: http://r.789695.n4.nabble.com/Problem-with-if-tp4649180.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD Alameda, CA, USA
This is Circle 8.1.30 of 'The R Inferno'. http://www.burns-stat.com/pages/Tutor/R_inferno.pdf The example even uses 3.
On Nov 10, 2012, at 8:34 AM, Haszun wrote:
Why it always gives me a 3?
fun=function(x) {
+ if (x<-3) {
The above code assigns 3 to x.
+ return(x)
+ } else {
+ if(x<2) {
+ return(x^2-1)
+ } else {
+ return(log(x))
+ }}}
fun(-5)
[1] 3
fun(0)
[1] 3
fun(10)
[1] 3
fun(-10)
[1] 3
-- View this message in context: http://r.789695.n4.nabble.com/Problem-with-if-tp4649180.html Sent from the R help mailing list archive at Nabble.com.
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD Alameda, CA, USA
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Patrick Burns pburns at pburns.seanet.com twitter: @portfolioprobe http://www.portfolioprobe.com/blog http://www.burns-stat.com (home of 'Some hints for the R beginner' and 'The R Inferno')