[R] Reliability metric

R. Michael Weylandt
Fri, 09 Sep 2011 19:24:45 -0000

Your code works fine -- the warning message is just a heads up that the
object z/eta (which has length 111) does not quite match up with 1-h which
has length 10: usually this is a sign that the user defined something
improperly so R gives you a nice warning, but it doesn't halt the
calculation.

As to what you mean about your metric not being created -- if it's
"R" (odd
choice for a variable name given your platform) it sure seems to
exist....especially since you just gave us 111 values for it.

Though I think you don't know what you mean by "[the] function R".
Perhaps
you should read about how user defined functions are set up in R (the
fantastically useful insightful warning message giving language):
http://www.statmethods.net/management/userfunctions.html

Michael Weylandt

On Fri, Sep 9, 2011 at 2:14 PM, Halabi, Anan <anan.halabi@hp.com> wrote:

>
> Hi,
> Below is the code I write,
> I am trying to create a metric of h and t while the values is out of
> function R.
> First I have message warning
> Second, the metric is not created
>
>
> > h <- seq(0.1, 0.9, by=0.1)
> > t <- seq(0,11000, by=100)
> > z <- cbind(t)
> > eta=10000
> > beta=2
> > R <- array (1:1100, dim= c(110,10))
> > R= exp(-(z/eta*(1-h))^(beta*(1-h)))
> Warning messages:
> 1: In z/eta * (1 - h) :
>  longer object length is not a multiple of shorter object length
> 2: In (z/eta * (1 - h))^(beta * (1 - h)) :
>  longer object length is not a multiple of shorter object length
> > R
>               t
>  [1,] 1.0000000
>  [2,] 0.9995586
>  [3,] 0.9974647
>  [4,] 0.9919725
>  [5,] 0.9801987
>  [6,] 0.9572081
>  [7,] 0.9141353
>  [8,] 0.8341665
>  [9,] 0.6833618
>  [10,] 0.9892125
>  [11,] 0.9825766
>  [12,] 0.9727664
>  [13,] 0.9583520
>  [14,] 0.9370675
>  [15,] 0.9051390
>  [16,] 0.8559267
>  [17,] 0.7769472
>  [18,] 0.6423128
>  [19,] 0.9629361
>  [20,] 0.9521001
>  [21,] 0.9382259
>  [22,] 0.9201104
>  [23,] 0.8958341
>  [24,] 0.8622051
>  [25,] 0.8136275
>  [26,] 0.7395534
>  [27,] 0.6175830
>  [28,] 0.9246320
>  [29,] 0.9127580
>  [30,] 0.8982795
>  [31,] 0.8800821
>  [32,] 0.8564152
>  [33,] 0.8244048
>  [34,] 0.7790512
>  [35,] 0.7109198
>  [36,] 0.5996181
>  [37,] 0.8767646
>  [38,] 0.8671159
>  [39,] 0.8550329
>  [40,] 0.8394499
>  [41,] 0.8187308
>  [42,] 0.7902253
>  [43,] 0.7493487
>  [44,] 0.6874269
>  [45,] 0.5854263
>  [46,] 0.8215803
>  [47,] 0.8170930
>  [48,] 0.8098560
>  [49,] 0.7988930
>  [50,] 0.7827045
>  [51,] 0.7588540
>  [52,] 0.7231046
>  [53,] 0.6673758
>  [54,] 0.5736597
>  [55,] 0.7611968
>  [56,] 0.7642511
>  [57,] 0.7637415
>  [58,] 0.7588504
>  [59,] 0.7482636
>  [60,] 0.7297788
>  [61,] 0.6994875
>  [62,] 0.6498159
>  [63,] 0.5635906
>  [64,] 0.6975913
>  [65,] 0.7098972
>  [66,] 0.7174446
>  [67,] 0.7196221
>  [68,] 0.7153381
>  [69,] 0.7026455
>  [70,] 0.6779572
>  [71,] 0.6341555
>  [72,] 0.5547793
>  [73,] 0.6325678
>  [74,] 0.6551296
>  [75,] 0.6715521
>  [76,] 0.6814181
>  [77,] 0.6838614
>  [78,] 0.6771931
>  [79,] 0.6581383
>  [80,] 0.6199984
>  [81,] 0.5469392
>  [82,] 0.5677232
>  [83,] 0.6008650
>  [84,] 0.6265229
>  [85,] 0.6443861
>  [86,] 0.6537698
>  [87,] 0.6532207
>  [88,] 0.6397566
>  [89,] 0.6070646
>  [90,] 0.5398727
>  [91,] 0.5044222
>  [92,] 0.5478565
>  [93,] 0.5827146
>  [94,] 0.6086282
>  [95,] 0.6250023
>  [96,] 0.6305684
>  [97,] 0.6226043
>  [98,] 0.5951486
>  [99,] 0.5334377
> [100,] 0.4437834
> [101,] 0.4967086
> [102,] 0.5404019
> [103,] 0.5742126
> [104,] 0.5975006
> [105,] 0.6091056
> [106,] 0.6065193
> [107,] 0.5840942
> [108,] 0.5275280
> [109,] 0.3866770
> [110,] 0.4478912
> [111,] 0.4997913
> > length(R)
> [1] 111
>
> Anan Halabi
> Reliability Eng, R&D
> HP Scitex
> Tel: 972-9-8924648
> mobil: 972-52-6624231
>
>
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>
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