Dear All: good morning I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But I am getting an error message. Please see below. I am getting the error message: *Error in xy.coords(x, y, xlabel, ylabel, log) : * * 'x' and 'y' lengths differ* x x <- seq(-5, 5, 0.01) y < 1/x plot(x,y, type='l', xlim=c(-5, 5), ylim=c(-5, 5), xlab = "x", ylab = "f(x) = 1/x", lwd = 2, col ="red") abline(h=0, lty=2, col = "blue") abline(v=0, lty=2, col = "blue") axis(1) axis(2) title(main="The Graph of f(x) = 1/x") any help will be highly appreciated. with thanks abou ______________________ AbouEl-Makarim Aboueissa, PhD Professor of Statistics Department of Mathematics and Statistics University of Southern Maine
Graph f(x) = 1/x
5 messages · AbouEl-Makarim Aboueissa, Achim Zeileis, Ivan Calandra +1 more
On Tue, 19 Sep 2017, AbouEl-Makarim Aboueissa wrote:
Dear All: good morning I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But I am getting an error message. Please see below. I am getting the error message: *Error in xy.coords(x, y, xlabel, ylabel, log) : * * 'x' and 'y' lengths differ*
You have "y < 1/x" rather than "y <- 1/x"! So "y" is not assigned and presumably you have some old "y" variable in your global environment that is used and does not match the length of "x".
x x <- seq(-5, 5, 0.01) y < 1/x plot(x,y, type='l', xlim=c(-5, 5), ylim=c(-5, 5), xlab = "x", ylab = "f(x) = 1/x", lwd = 2, col ="red") abline(h=0, lty=2, col = "blue") abline(v=0, lty=2, col = "blue") axis(1) axis(2) title(main="The Graph of f(x) = 1/x") any help will be highly appreciated. with thanks abou
______________________ AbouEl-Makarim Aboueissa, PhD Professor of Statistics Department of Mathematics and Statistics University of Southern Maine [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
Dear Zeileis: Thank you very much abou On Tue, Sep 19, 2017 at 4:13 AM, Achim Zeileis <Achim.Zeileis at uibk.ac.at> wrote:
On Tue, 19 Sep 2017, AbouEl-Makarim Aboueissa wrote: Dear All: good morning
I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But I am getting an error message. Please see below. I am getting the error message: *Error in xy.coords(x, y, xlabel, ylabel, log) : * * 'x' and 'y' lengths differ*
You have "y < 1/x" rather than "y <- 1/x"! So "y" is not assigned and presumably you have some old "y" variable in your global environment that is used and does not match the length of "x".
x x <- seq(-5, 5, 0.01) y < 1/x plot(x,y, type='l', xlim=c(-5, 5), ylim=c(-5, 5), xlab = "x", ylab = "f(x) = 1/x", lwd = 2, col ="red") abline(h=0, lty=2, col = "blue") abline(v=0, lty=2, col = "blue") axis(1) axis(2) title(main="The Graph of f(x) = 1/x") any help will be highly appreciated. with thanks abou
______________________
AbouEl-Makarim Aboueissa, PhD
Professor of Statistics
Department of Mathematics and Statistics
University of Southern Maine
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posti
ng-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________ AbouEl-Makarim Aboueissa, PhD Professor of Statistics Department of Mathematics and Statistics University of Southern Maine [[alternative HTML version deleted]]
It's always good to start a new session when you don't understand what's wrong, because sometimes your code is correct, but you use old data without knowing it :) Ivan -- Dr. Ivan Calandra TraCEr, Laboratory for Traceology and Controlled Experiments MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution Schloss Monrepos 56567 Neuwied, Germany +49 (0) 2631 9772-243 https://www.researchgate.net/profile/Ivan_Calandra
On 19/09/2017 10:19, AbouEl-Makarim Aboueissa wrote:
Dear Zeileis: Thank you very much abou On Tue, Sep 19, 2017 at 4:13 AM, Achim Zeileis <Achim.Zeileis at uibk.ac.at> wrote:
On Tue, 19 Sep 2017, AbouEl-Makarim Aboueissa wrote: Dear All: good morning
I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But I am getting an error message. Please see below. I am getting the error message: *Error in xy.coords(x, y, xlabel, ylabel, log) : * * 'x' and 'y' lengths differ*
You have "y < 1/x" rather than "y <- 1/x"! So "y" is not assigned and presumably you have some old "y" variable in your global environment that is used and does not match the length of "x".
x x <- seq(-5, 5, 0.01) y < 1/x plot(x,y, type='l', xlim=c(-5, 5), ylim=c(-5, 5), xlab = "x", ylab = "f(x) = 1/x", lwd = 2, col ="red") abline(h=0, lty=2, col = "blue") abline(v=0, lty=2, col = "blue") axis(1) axis(2) title(main="The Graph of f(x) = 1/x") any help will be highly appreciated. with thanks abou
______________________
AbouEl-Makarim Aboueissa, PhD
Professor of Statistics
Department of Mathematics and Statistics
University of Southern Maine
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posti
ng-guide.html
and provide commented, minimal, self-contained, reproducible code.
Hello, I believe that the easiest way is curve(1/x, -5, 5) Also, you're missing a '-' in y < 1/x, it should be y <- 1/x Hope this helps, Rui Barradas Citando AbouEl-Makarim Aboueissa <abouelmakarim1962 at gmail.com>:
Dear All: good morning I am trying to graph the function y=f(x)=1/x over the interval (-5,5). But I am getting an error message. Please see below. I am getting the error message: *Error in xy.coords(x, y, xlabel, ylabel, log) : * * 'x' and 'y' lengths differ* x x <- seq(-5, 5, 0.01) y < 1/x plot(x,y, type='l', xlim=c(-5, 5), ylim=c(-5, 5), xlab = "x", ylab = "f(x) = 1/x", lwd = 2, col ="red") abline(h=0, lty=2, col = "blue") abline(v=0, lty=2, col = "blue") axis(1) axis(2) title(main="The Graph of f(x) = 1/x") any help will be highly appreciated. with thanks abou
______________________ AbouEl-Makarim Aboueissa, PhD Professor of Statistics Department of Mathematics and Statistics University of Southern Maine [[alternative HTML version deleted]] ______________________________________________ R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.