On 20-05-2013, at 14:09, Honest Chipoyera <honest.chipoy...@wits.ac.za> wrote:
> I have two functions H1(x) and H2(x) defined separately and I wish to create > a new function H(x) which is the sum of the two functions. I also need to > plot the three functions using the command "curve". With the aid of the > example program below, can you please explain how I can do that in R. > > H1<-function(x) x^2 > H2<-function(x) x+5 > H<-function(x){H1+H2} > par(mfrow=c(3,1)) > curve(H1(x),0,100) > curve(H2(x),0,100) > curve(H(x),0,100) You correctly use H1(x) and H2(x) in the curve calls. Why don't you use H1(x)+H2(x) in function H? H<-function(x){H1(x)+H2(x)} Berend > > HW Chipoyera > Cell: 0767190507 Please post in plain text as the Posting Guide asks you to do. > <table width="100%" border="0" cellspacing="0" cellpadding="0" > style="width:100%;"> > <tr> > <td align="left" style="text-align:justify;"><font face="arial,sans-serif" > size="1" color="#999999"><span style="font-size:11px;">This communication is > intended for the addressee only. It is confidential. If you have received > this communication in error, please notify us immediately and destroy the > original message. You may not copy or disseminate this communication without > the permission of the University. Only authorised signatories are competent > to enter into agreements on behalf of the University and recipients are thus > advised that the content of this message may not be legally binding on the > University and may contain the personal views and opinions of the author, > which are not necessarily the views and opinions of The University of the > Witwatersrand, Johannesburg. All agreements between the University and > outsiders are subject to South African Law unless the University agrees in > writing to the contrary. </span></font></td> > </tr> > </table > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@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. ______________________________________________ R-help@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.