Re: Generate random numbers from Normal Distribution with Specific Mean and Variance

[Sean Owen]

In the context of Spark, there are already things like RandomRDD and SQL
randn() to generate random standard normal variables.

If you want to do it directly, Commons Math is a good choice in the JVM,
among others.

Once you have a standard normal, just multiply by the stdev and add the
mean to get any other univariate normal. No need for special support for it.

On Mon, Oct 24, 2016 at 5:05 PM Mich Talebzadeh 
wrote:

> me being lazy
>
> Does anyone have a library to create an array of random numbers from
> normal distribution with a given mean and variance by any chance?
>
> Something like here
> 
>
>
> Thanks
>
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn * 
> https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> *
>
>
>
> http://talebzadehmich.wordpress.com
>
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>

Re: Generate random numbers from Normal Distribution with Specific Mean and Variance

[Jörn Franke]

https://github.com/rnowling/bigpetstore-data-generator

> On 24 Oct 2016, at 19:17, Mich Talebzadeh  wrote:
> 
> thanks Jorn.
> 
> I wish we had these libraries somewhere :)
> 
> Dr Mich Talebzadeh
>  
> LinkedIn  
> https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>  
> http://talebzadehmich.wordpress.com
> 
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, 
> damage or destruction of data or any other property which may arise from 
> relying on this email's technical content is explicitly disclaimed. The 
> author will in no case be liable for any monetary damages arising from such 
> loss, damage or destruction.
>  
> 
>> On 24 October 2016 at 17:09, Jörn Franke  wrote:
>> Bigtop contains a random data generator mainly for transactions, but it 
>> could be rather easily adapted 
>> 
>>> On 24 Oct 2016, at 18:04, Mich Talebzadeh  wrote:
>>> 
>>> me being lazy
>>> 
>>> Does anyone have a library to create an array of random numbers from normal 
>>> distribution with a given mean and variance by any chance?
>>> 
>>> Something like here
>>> 
>>> 
>>> Thanks
>>> 
>>> 
>>> 
>>> Dr Mich Talebzadeh
>>>  
>>> LinkedIn  
>>> https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>>  
>>> http://talebzadehmich.wordpress.com
>>> 
>>> Disclaimer: Use it at your own risk. Any and all responsibility for any 
>>> loss, damage or destruction of data or any other property which may arise 
>>> from relying on this email's technical content is explicitly disclaimed. 
>>> The author will in no case be liable for any monetary damages arising from 
>>> such loss, damage or destruction.
>>>  
> 

Re: Generate random numbers from Normal Distribution with Specific Mean and Variance

[Mich Talebzadeh]

thanks Jorn.

I wish we had these libraries somewhere :)

Dr Mich Talebzadeh



LinkedIn * 
https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
*



http://talebzadehmich.wordpress.com


*Disclaimer:* Use it at your own risk. Any and all responsibility for any
loss, damage or destruction of data or any other property which may arise
from relying on this email's technical content is explicitly disclaimed.
The author will in no case be liable for any monetary damages arising from
such loss, damage or destruction.



On 24 October 2016 at 17:09, Jörn Franke  wrote:

> Bigtop contains a random data generator mainly for transactions, but it
> could be rather easily adapted
>
> On 24 Oct 2016, at 18:04, Mich Talebzadeh 
> wrote:
>
> me being lazy
>
> Does anyone have a library to create an array of random numbers from
> normal distribution with a given mean and variance by any chance?
>
> Something like here
> 
>
>
> Thanks
>
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn * 
> https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> *
>
>
>
> http://talebzadehmich.wordpress.com
>
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
>

Re: Generate random numbers from Normal Distribution with Specific Mean and Variance

[Jörn Franke]

Bigtop contains a random data generator mainly for transactions, but it could 
be rather easily adapted 

> On 24 Oct 2016, at 18:04, Mich Talebzadeh  wrote:
> 
> me being lazy
> 
> Does anyone have a library to create an array of random numbers from normal 
> distribution with a given mean and variance by any chance?
> 
> Something like here
> 
> 
> Thanks
> 
> 
> 
> Dr Mich Talebzadeh
>  
> LinkedIn  
> https://www.linkedin.com/profile/view?id=AAEWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>  
> http://talebzadehmich.wordpress.com
> 
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, 
> damage or destruction of data or any other property which may arise from 
> relying on this email's technical content is explicitly disclaimed. The 
> author will in no case be liable for any monetary damages arising from such 
> loss, damage or destruction.
>