Re: Dialog for selecting a file to be read
- To: mathgroup at smc.vnet.net
- Subject: [mg17177] Re: [mg17129] Dialog for selecting a file to be read
- From: Maarten.vanderBurgt at icos.be
- Date: Tue, 20 Apr 1999 01:20:54 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Martin,
Some time ago I posted a similar question.
I found Bob Hanlon's suggestion, use the command Input/Get File Path, very
useful.
Maarten
BobHanlon at aol.com on 10-01-99 09:57:42 PM
cc:
Subject: [mg17177] Re: [mg15345] listplot and notebook directory
In a message dated 1/10/99 1:42:56 AM, Maarten.vanderBurgt at icos.be writes:
>When I execute the following command the result is a listplot where the
>data points ares fairly big filled black circles.
> In[1]:= ListPlot[{0,2,4,9,16,25},PlotStyle->PointSize[0.05]]
>
>The following gives a plot where the data points are joined by a line.
> In[2]:= ListPlot[{0,2,4,9,16,25},PlotJoined -> True]
>
>With the following I would expect the combination of the two. It does
>however give the same results as In[2]: the
>"PlotStyle->PointSize[0.05]" options doesn't seem to have any effect
>here. Is this intended behaviour or is this a bug?
> In[3]:= ListPlot[{0,2,4,9,16,25},PlotJoined -> True,
>PlotStyle->PointSize[0.05]]
>
>Is there a way you can have both options "PlotJoined -> True" and
>"PlotStyle->PointSize[0.05]"?
>
Maarten,
Just overlay the two plots.
plt1 = ListPlot[{0,2,4,9,16,25},
PlotStyle->PointSize[0.05],
DisplayFunction -> Identity];
plt2 = ListPlot[{0,2,4,9,16,25},
PlotJoined -> True,
DisplayFunction -> Identity];
Show[{plt1, plt2}, DisplayFunction-> $DisplayFunction];
_________________________
For Path names use the command
Input, Get File Path ...
and select file from browser.
Bob Hanlon
"Martin Rommel" <rommel at semitest.com> on 17-04-99 09:35:18 AM
Subject: [mg17177] [mg17129] Dialog for selecting a file to be read
I often load data files to be processed in Mathematica and it is quite
cumbersome that I have to explicitly specify the path and the
filename every time. I would rather pick from a list in a dialog window.
As far as I know there is no simple way to invoke the operating system's
file open dialog from Mathematica. Has anyone come up with a solution?
I can imagine that a small external program (maybe linked via mathlink or
called with <<"! ) can do the job.
Another possibility would be a fancy construct (maybe as a button) using
the
Mathematica Commands FileNames[], SetDirectory[], etc.
If you know of anything related please let me know!
Cheers, Martin.