[R] adding sequence for each value in a vector

[Liaw, Andy]

Here's one way:

> unlist(lapply(x, function(x) x:(x+9)))
 [1]   1   2   3   4   5   6   7   8   9  10  15  16  17  18  19  20  21  22
23  24
[21]  30  31  32  33  34  35  36  37  38  39  45  46  47  48  49  50  51  52
53  54
[41]  60  61  62  63  64  65  66  67  68  69  90  91  92  93  94  95  96  97
98  99
[61] 115 116 117 118 119 120 121 122 123 124

Andy 

> From: Yves Magliulo
> 
> hi, 
> 
> i have a vector like :
> 
> x<-c(1,15,30,45,60,90,115)
> 
> i know that step by step i have always more than 10  
> 
> min(diff(x)) >=11
> 
> i want to add for each value a sequence of value:value+9  
> result should be :
> 
> 1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 23 24 30 31 
> (...) 39 45 46
> (...) 54 60 61 etc..
> 
> how can i do this without a loop (i'm sure there is a 
> "elegant" way like
> always with R but i can't find it this time!)
> 
> best, 
> 
> yves
> 
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