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From narjes saraie <narjessar...@gmail.com>
Subject Re: [math]plot distribution
Date Fri, 19 Jun 2015 13:57:36 GMT
Thanks a lot  for patient guidance.
best regards


On Fri, Jun 19, 2015 at 6:39 AM, Ole Ersoy <ole.ersoy@gmail.com> wrote:

> Narjes,
>
> There's some examples of plotting distributions here (The library also has
> code for various GOF metrics):
> http://www.iro.umontreal.ca/~simardr/ssj/indexe.html
>
> Follow the `plot` link:
> http://simul.iro.umontreal.ca/ssj/doc/pdf/guidecharts.pdf
>
> Cheers,
> - Ole
>
>
> On 06/19/2015 04:22 AM, narjes saraie wrote:
>
>> Hi Phil.
>>
>>
>> I open http://s.apache.org/HTo  <http://s.apache.org/HTo>
>> but i couldent use it.Is it possible for you to attache one  source of the
>> plot?
>> I dont know witch line help me to draw the plots in the user
>> guide section on probability distributions?
>> Im sorry that Im  very very beginner.
>>
>>
>> thanks a lot .
>>
>>
>> <http://s.apache.org/HTo>
>>
>>
>> On Thu, Jun 18, 2015 at 8:06 AM, Phil Steitz <phil.steitz@gmail.com>
>> wrote:
>>
>>  On 6/18/15 6:31 AM, narjes saraie wrote:
>>>
>>>> Hi All.
>>>> I am beginner in java and have some data.I want to guess a distribution
>>>>
>>> for
>>>
>>>> my data then calculate goodness of fit (gof).
>>>> I find distribution commons math and use it ,if i want plot my
>>>>
>>> distribution
>>>
>>>> or CDF or probability (X>x), how do it?
>>>> is it any example for distribution and plotting it.
>>>>
>>> We don't have graphical exploratory data analysis tools in Commons
>>> Math.  You would do best to start with a package that supports
>>> generation of histograms if you have no idea what distribution might
>>> fit the data.  If you do have an idea of what the distribution is,
>>> depending on what it is, you may be able to estimate the parameters
>>> of the distribution from the data.  For example, if you think that
>>> the data are normally distributed, you can use SummaryStatistics in
>>> the stat package to get the standard statistical estimators of the
>>> mean and standard deviation, which together determine a normal
>>> distribution. Then you could do a Kolmogorov-Smirnov test (or group
>>> the data and use a G- or ChiSquare test) to assess goodness of fit.
>>> Other distributions have different parameters and different
>>> statistical estimators.
>>>
>>> We don't currently support plotting distributions in Commons Math,
>>> but the user guide code contains an example showing how to do it
>>> with some external tools.  Have a look at the plots in the user
>>> guide section on probability distributions [1] and the source for
>>> the code that generates those plots [2].
>>>
>>> Phil
>>>
>>> [1]
>>> http://commons.apache.org/proper/commons-math/userguide/distribution.html
>>> [2] http://s.apache.org/HTo
>>>
>>>  thanks.
>>>>
>>>>
>>>
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