[R] vlookup in R?
jim holtman
jholtman at gmail.com
Fri May 28 03:51:41 CEST 2010
?findInterval
On Thu, May 27, 2010 at 9:20 PM, Roslina Zakaria <zroslina at yahoo.com> wrote:
> Hi R-users,
>
> I would like to search for the values of seq that match my rand values. In excel I will use =VLOOKUP(G2,$E$2:$F$32,2). For example, for rand=.262 it will give me approximately seq=120 and rand=0.964293344, seq=460 and etc.
>
> E F G
> cdf seq rand
> 0.00E+00 0 0.262123478
> 1.56E-03 20 0.964293344
> 1.55E-02 40 0.494827113
> 5.30E-02 60 0.733726005
> 1.16E-01 80 0.800408948
> 1.97E-01 100 0.925748466
> 2.88E-01 120 0.047578356
> 3.80E-01 140 0.266060366
> 4.68E-01 160 0.125522629
> 5.48E-01 180 0.701193274
> 6.18E-01 200 0.915799432
> 6.79E-01 220 0.735984375
> 7.32E-01 240 0.517838069
> 7.76E-01 260 0.042085025
> 8.13E-01 280 0.568346202
> 8.44E-01 300 0.067140721
> 8.70E-01 320 0.71437727
> 8.92E-01 340 0.712210456
> 9.10E-01 360 0.288460952
> 9.26E-01 380 0.185857723
> 9.38E-01 400 0.108859523
> 9.49E-01 420 0.513351848
> 9.57E-01 440 0.22214423
> 9.65E-01 460 0.500350963
> 9.71E-01 480 0.437818537
> 9.76E-01 500 0.851771599
> 9.80E-01 520 0.803521836
> 9.83E-01 540 0.249824519
> 9.86E-01 560 0.859248634
> 9.88E-01 580 0.126926481
> 9.90E-01 600 0.713431196
> 0.253425703
> 0.830195013
> 0.723929563
> 0.027588733
> 0.091067232
> 0.689504685
> 0.890469069
> 0.710440382
> Thank you so much for your help.
>
>
>
>
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
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