Velocity Reviews > Ruby > 10 numbers in between 2 numbers

# 10 numbers in between 2 numbers

jko170
Guest
Posts: n/a

 01-20-2009
How can I get an array of 10 numbers in between two numbers?

(1..500).to_a

How can I turn the above into an array of ten numbers in between 1 and
500 (including 1 and 500)?

James Gray
Guest
Posts: n/a

 01-20-2009
On Jan 19, 2009, at 9:58 PM, jko170 wrote:

> How can I get an array of 10 numbers in between two numbers?
>
> (1..500).to_a

I guess it depends on which ten numbers you want, but here's one way:

>> (1..500).enum_for(:step, 50).to_a

=> [1, 51, 101, 151, 201, 251, 301, 351, 401, 451]

James Edward Gray II

Aaron Turner
Guest
Posts: n/a

 01-20-2009
On Mon, Jan 19, 2009 at 7:58 PM, jko170 <(E-Mail Removed)> wrote:
> How can I get an array of 10 numbers in between two numbers?
>
> (1..500).to_a
>
> How can I turn the above into an array of ten numbers in between 1 and
> 500 (including 1 and 500)?

I'm confused... aren't there a lot more then 10 numbers between 1 and
500? Are you asking for a random sampling or???

--
Aaron Turner
http://synfin.net/
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Tim Greer
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Posts: n/a

 01-20-2009
jko170 wrote:

> How can I get an array of 10 numbers in between two numbers?
>
> (1..500).to_a
>
> How can I turn the above into an array of ten numbers in between 1 and
> 500 (including 1 and 500)?

10 numbers randomly, or spread out evenly (ish), such as 1, 50, 100,
150, 200, 250, 300, 350, 400, 450, 500 (though that's 11 and not
exactly even). Can you elaborate?
--
Tim Greer, CEO/Founder/CTO, BurlyHost.com, Inc.
Shared Hosting, Reseller Hosting, Dedicated & Semi-Dedicated servers
and Custom Hosting. 24/7 support, 30 day guarantee, secure servers.
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James Gray
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Posts: n/a

 01-20-2009
On Jan 19, 2009, at 10:05 PM, James Gray wrote:

> On Jan 19, 2009, at 9:58 PM, jko170 wrote:
>
>> How can I get an array of 10 numbers in between two numbers?
>>
>> (1..500).to_a

>
> I guess it depends on which ten numbers you want, but here's one way:

Oops, I left out a:

require "enumerator"

> >> (1..500).enum_for(:step, 50).to_a

> => [1, 51, 101, 151, 201, 251, 301, 351, 401, 451]
>
> James Edward Gray II
>

jko170
Guest
Posts: n/a

 01-20-2009
On Jan 20, 1:12 am, Tim Greer <(E-Mail Removed)> wrote:
> jko170 wrote:
> > How can I get an array of 10 numbers in between two numbers?

>
> > (1..500).to_a

>
> > How can I turn the above into an array of ten numbers in between 1 and
> > 500 (including 1 and 500)?

>
> 10 numbers randomly, or spread out evenly (ish), such as 1, 50, 100,
> 150, 200, 250, 300, 350, 400, 450, 500 (though that's 11 and not
> exactly even). Can you elaborate?
> --
> Tim Greer, CEO/Founder/CTO, BurlyHost.com, Inc.
> Shared Hosting, Reseller Hosting, Dedicated & Semi-Dedicated servers
> and Custom Hosting. 24/7 support, 30 day guarantee, secure servers.
> Industry's most experienced staff! -- Web Hosting With Muscle!

Sorry everyone, yes 10 numbers and dates spread our evenly. Thanks for
the replies!

jko170
Guest
Posts: n/a

 01-20-2009
On Jan 20, 1:12 am, Tim Greer <(E-Mail Removed)> wrote:
> jko170 wrote:
> > How can I get an array of 10 numbers in between two numbers?

>
> > (1..500).to_a

>
> > How can I turn the above into an array of ten numbers in between 1 and
> > 500 (including 1 and 500)?

>
> 10 numbers randomly, or spread out evenly (ish), such as 1, 50, 100,
> 150, 200, 250, 300, 350, 400, 450, 500 (though that's 11 and not
> exactly even). Can you elaborate?
> --
> Tim Greer, CEO/Founder/CTO, BurlyHost.com, Inc.
> Shared Hosting, Reseller Hosting, Dedicated & Semi-Dedicated servers
> and Custom Hosting. 24/7 support, 30 day guarantee, secure servers.
> Industry's most experienced staff! -- Web Hosting With Muscle!

Sorry everyone, yes 10 numbers and dates spread our evenly. Thanks for
the replies!

jko170
Guest
Posts: n/a

 01-20-2009
On Jan 19, 10:05 pm, James Gray <(E-Mail Removed)> wrote:
> On Jan 19, 2009, at 9:58 PM, jko170 wrote:
>
> > How can I get an array of 10 numbers in between two numbers?

>
> > (1..500).to_a

>
> I guess it depends on which ten numbers you want, but here's one way:
>
> >> (1..500).enum_for(:step, 50).to_a

> => [1, 51, 101, 151, 201, 251, 301, 351, 401, 451]
>
> James Edward Gray II

Yeah, the end numbers need to be included in the array of 10.

Tim Hunter
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Posts: n/a

 01-20-2009
jko170 wrote:
> On Jan 19, 10:05 pm, James Gray <(E-Mail Removed)> wrote:
>> On Jan 19, 2009, at 9:58 PM, jko170 wrote:
>>
>>> How can I get an array of 10 numbers in between two numbers?
>>> (1..500).to_a

>> I guess it depends on which ten numbers you want, but here's one way:
>>
>> >> (1..500).enum_for(:step, 50).to_a

>> => [1, 51, 101, 151, 201, 251, 301, 351, 401, 451]
>>
>> James Edward Gray II

>
> Yeah, the end numbers need to be included in the array of 10.
>
>

Requirements: 10 numbers, evenly distributed, first and last numbers in
the array.

require 'pp'

first, last = ARGV[0].to_f, ARGV[1].to_f
numbers = []
incr = (last - first) / 9.0
n = first
10.times do
numbers << n
n += incr
end
pp numbers

--
RMagick: http://rmagick.rubyforge.org/

jko170
Guest
Posts: n/a

 01-21-2009
On Jan 20, 5:19*pm, Tim Hunter <(E-Mail Removed)> wrote:
> jko170 wrote:
> > On Jan 19, 10:05 pm, James Gray <(E-Mail Removed)> wrote:
> >> On Jan 19, 2009, at 9:58 PM, jko170 wrote:

>
> >>> How can I get an array of 10 numbers in between two numbers?
> >>> (1..500).to_a
> >> I guess it depends on which ten numbers you want, but here's one way:

>
> >> *>> (1..500).enum_for(:step, 50).to_a
> >> => [1, 51, 101, 151, 201, 251, 301, 351, 401, 451]

>
> >> James Edward Gray II

>
> > Yeah, the end numbers need to be included in the array of 10.

>
> Requirements: 10 numbers, evenly distributed, first and last numbers in
> the array.
>
> require 'pp'
>
> first, last = ARGV[0].to_f, ARGV[1].to_f
> numbers = []
> incr = (last - first) / 9.0
> n = first
> 10.times do
> * *numbers << n
> * *n += incr
> end
> pp numbers
>
> --
> RMagick:http://rmagick.rubyforge.org/

Thank you very much Tim! Works perfectly.