Re: Quantile function
- To: mathgroup at smc.vnet.net
- Subject: [mg35360] Re: Quantile function
- From: Tomas Garza <tgarza01 at prodigy.net.mx>
- Date: Tue, 9 Jul 2002 06:50:24 -0400 (EDT)
- References: <200207080716.DAA19730@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Mathematica displays only a few digits (usually 6) as the result of a
numerical calculation. The precision is *not* what appears in your display.
One possibility is to ask for NumberForm:
In[1]:=
<< "Statistics`"
In[2]:=
gdist = GammaDistribution[3, 1]
Out[2]=
GammaDistribution[3, 1]
In[3]:=
Table[NumberForm[Quantile[gdist, 0.8], j], {j, 2, 16}]
Out[3]=
{4.3, 4.28, 4.279, 4.279, 4.27903, 4.27903, 4.2790299,
4.27902986, 4.27902986, 4.2790298601, 4.27902986013,
4.279029860125, 4.2790298601253, 4.27902986012533,
4.279029860125333}
Here you have 15 decimals. Asking for more would be too much, I think. The
result is stored internally with as much precision as possible.
Tomas Garza
Mexico City
----- Original Message -----
From: "Abdullah Oblongata" <a at a.a>
To: mathgroup at smc.vnet.net
Subject: [mg35360] Quantile function
> When using the quantile function:
>
> In[7]:=
> Quantile[dist, 0.8]
>
> Out[7]=
> 0.841621
>
> can anyone tell me how to get more accuracy?
>
> Thanks
>
>
>
- References:
- Quantile function
- From: "Abdullah Oblongata" <a@a.a>
- Quantile function