Hi Rolf Turner, Firstly, I really appreciate your help.
Is it possible to give the number of entries I need so that rnorm function generates only that number of rows? Also is it possible to generate the points with spread randomly such that they don't overlap each other too much. Many Thanks and Kind Regards -- Muhammad Bilal Research Assistant and PhD Student, Bristol Enterprise, Research and Innovation Centre (BERIC), University of the West of England (UWE), Frenchay Campus, Bristol, BS16 1QY muhammad2.bi...@live.uwe.ac.uk ________________________________________ From: Rolf Turner <r.tur...@auckland.ac.nz> Sent: 09 April 2016 04:46 To: Muhammad Bilal Cc: r-help@r-project.org Subject: Re: [FORGED] [R] Generating random data with non-linear correlation between two variables On 09/04/16 06:57, Muhammad Bilal wrote: > Hi All, > > I am new to R and don't know how to achieve it. > > I am interested in generating a hypothetical dataframe that is consisted of > say two variables named v1 and v2, based on the following constraints: > 1. The range of v1 is 500-1500. > 2. The mean of v1 is say 1100 > 3. The range of v2 is 300-950. > 4. The mean of v2 is say 400 > 5. There exists a positive trend between these two variables, meaning that as > v1 increases, v2 be also increase. > 6. But the trend should be slightly non-linear. i.e., curved line. > > Is it possible to automatically generate through functions like rnorm. > > Any help will be highly appreciated. This sounds to me very much like a homework problem. We don't do people's homework for them on this list. cheers, Rolf Turner -- Technical Editor ANZJS Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276 ______________________________________________ R-help@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.
