[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.
>
>
>
>
>        [[alternative HTML version deleted]]
>
>
> ______________________________________________
> 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.
>
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?



More information about the R-help mailing list