[R] Error in cut.default(a, breaks = 100) : 'breaks' are not unique

Jeff Newmiller jdnewmil at dcn.davis.ca.us
Wed Feb 17 21:33:09 CET 2016

Range of values is a standard mathematical concept, unrelated to the number of values in your data set.  Consider using the summary function to learn about the range of your data. 

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Sent from my phone. Please excuse my brevity.

On February 17, 2016 7:06:19 AM PST, "/ty放仔兽/yl" <yoyohashao at qq.com> wrote:
>Dear R users,
>as my first post for this mailing list, I'd like to ask questions about
>'break' in cut.default.
>I am using pheatmap in RStudio. Pheatmap is a function to draw
>clustered heatmap in R. 
>According to the manual, breaks is 'a sequence of numbers that covers
>the range of values in data matrix and is one element longer than color
>vector. Used for mapping values to colors. Useful, if needed to map
>certain values to certain colors, to certain values. If value is NA
>then the breaks are calculated automatically.' 
>I left it NA but received an error message. I then assigned a seq to it
>by typing breaks=c(0,1,2,3,4,5,6,7,8,9), which didn't work as well (my
>col.pal has 9 elements so I made a breaks with 10 elements).
>One thing I felt confused was that it said breaks should cover the
>range of values in data matrix. My data has 20 obs. of 23 variables.
>Which number would cover it? And how should I understand 'cover' in
>this context.
>Sorry to bother you guys. I am quite a rookie to R.
>Kind. Sebastian
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>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>PLEASE do read the posting guide
>and provide commented, minimal, self-contained, reproducible code.

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