Re: how to drop ContextPath when printing from a package?
- To: mathgroup at smc.vnet.net
- Subject: [mg116389] Re: how to drop ContextPath when printing from a package?
- From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
- Date: Sun, 13 Feb 2011 03:05:30 -0500 (EST)
- References: <200812020542.AAA19141@smc.vnet.net> <ij2uks$7j8$1@smc.vnet.net>
Hi Ted,
I assume your variable is local to a package that contains the
variable. Apart from the package context I further assume that your
module basically does something like:
myFit[data_] :=
Module[{x, f},
f = FindFit[data, a + b x, {a, b}, x];
a + b x /. f
]
which yields something like:
In[276]:= myFit[{{1, 2.2}, {2, 3.8}, {3, 6}, {4, 8.4}}]
Out[276]= -0.1 + 2.08 x$142961
In my opinion, it is never a good idea to return a local variable. One
solution is, of course, to use a different variable in your module, so
not x, or not to return the fit in terms of x. If returning a model in
terms of x is necessary another solution might be
myFit[data_] :=
Module[{x, f},
f = FindFit[data, a + b x, {a, b}, x];
a + b Symbol["x"] /. f
]
In[278]:= myFit[{{1, 2.2}, {2, 3.8}, {3, 6}, {4, 8.4}}]
Out[278]= -0.1 + 2.08 x
Cheers -- Sjoerd
On Feb 11, 10:14 am, Ted Sariyski <tsari... at craft-tech.com> wrote:
> Hi,
> I have a module, which make use of FindFit[data,model,par,x] and
> returns the model and a plot of data and the fit curve. I want to use
> the model as a PlotLabel but
> instead of
>
> y=1.19623+1048.91 x^0.733809
>
> I get
>
> y=1.19623+1048.91 initData`Private`x$^0.733809
>
> How can I get rid of the ContextPath initData`Private`?
> Thanks in advance,
> --Ted