If you only need a single variable (in this case value), and just
want to refer to it by the "key", there are other options.
value <- rnorm(6)
names(value) <- format(seq(0.5,3,0.5))
value['1.5']
But do watch out for numerical precision in the output of seq() if
your vector of values
...@r-project.org wrote:
>>
>> Message: 40
>> Date: Sun, 30 May 2010 09:24:22 +0100
>> From: Patrick Burns
>> To:r-help@r-project.org,alan....@gmail.com
>> Subject: Re: [R] Data Frame as Hash Table
>> Message-ID:<4c0220b6.7090...@pburns.seanet.com>
>>
t.org,alan@gmail.com
Subject: Re: [R] Data Frame as Hash Table
Message-ID:<4c0220b6.7090...@pburns.seanet.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
You might want to investigate the 'data.table'
package.
On 30/05/2010 09:03, Alan Lue wrote:
> I
You might want to investigate the 'data.table'
package.
On 30/05/2010 09:03, Alan Lue wrote:
I'm interested in using a data frame as if it were a hash table. For
instance if I had the following,
(d<- data.frame(key=seq(0.5, 3, 0.5), value=rnorm(6)))
keyvalue
1 0.5 -1.118665122
2 1
On Sun, May 30, 2010 at 9:03 AM, Alan Lue wrote:
> I'm interested in using a data frame as if it were a hash table. For
> instance if I had the following,
>
>> (d <- data.frame(key=seq(0.5, 3, 0.5), value=rnorm(6)))
> key value
> 1 0.5 -1.118665122
> 2 1.0 0.465122921
> 3 1.5 -0.52923921
I'm interested in using a data frame as if it were a hash table. For
instance if I had the following,
> (d <- data.frame(key=seq(0.5, 3, 0.5), value=rnorm(6)))
keyvalue
1 0.5 -1.118665122
2 1.0 0.465122921
3 1.5 -0.529239211
4 2.0 -0.147324638
5 2.5 -1.531503795
6 3.0 -0.002720434
The
6 matches
Mail list logo
