From: Greg Snow <Greg.Snow_at_imail.org>

Date: Mon, 24 Mar 2008 10:43:51 -0600

Date: Mon, 24 Mar 2008 10:43:51 -0600

Levi,

Here is one possible function:

Hope this helps,

-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow_at_imail.org (801) 408-8111Received on Mon 24 Mar 2008 - 16:54:43 GMT

> -----Original Message-----

> From: r-help-bounces_at_r-project.org> [mailto:r-help-bounces_at_r-project.org] On Behalf Of Levi Waldron> Sent: Saturday, March 22, 2008 7:03 PM> To: R-help mailing list> Subject: [R] "spreading out" a numeric vector>> I am creating a timeline plot, but running into a problem in> positions where the values to plot are too close together to> print the text without overlap. The simplest way I can think> of to solve this (although there may be other ways?) is to> create a new numeric vector whose values are as close as> possible to the original vector, but spread out to a given> minimum difference. For example, take the following vector:>> > x <- c(1,2,seq(2.1,2.3,0.1),3,4)> > x> [1] 1.0 2.0 2.1 2.2 2.3 3.0 4.0> >>> However, suppose I don't want to plot any of these points> with less than 0.5 between them. The problem could be solved> by a function that behaved something like this:>> > x2 <- spread(x,mindiff=0.5)> > x2> [1] 0.5 1.0 1.5 2.0 2.5 3.0 4.0>> Or for a minimum difference of 0.2,> > x2 <- spread(x,mindiff=0.2)> > x2> [1] 1.0 1.8 2.0 2.2 2.4 3.0 4.0>> Thus, if there is a cluster of close values, spreading the> values may require changing values which previously weren't> too close to their nearest neighbors.>> Then I could use segments() to draw lines from the timeline> to where the shifted text is printed, labeling tics on the> timeline accurately but keeping the text from overlapping.>> Any ideas on how to program this or how to do it using> built-in functions would be greatly appreciated.>> ______________________________________________> 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.>

______________________________________________ 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.

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