Questions about getting data, files, images etc. from various formats into a form that can be read, tranformed and manipulated by Mathematica
1
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1answer
318 views
How can I speed up image importing? [closed]
The following examples show how slow it is to load a simple GIF. Can anything be done to make it faster?
System #1: Mathematica 8.0.1.0, HP notebook, Win7 64Bit, 2 x 2.4Ghz Intel Core i5, 2GB RAM, w/ ...
1
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1answer
80 views
Importing a matrix from a text file
I have a $4 \times N$ matrix in a .txt file of the form:
-17.071 137.567 16.554 0.65
-16.873 136.138 16.934 0.7
-15.397 135.738 16.894 0.7
-14.7 135.982 15.9 0.6
...
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vote
3answers
69 views
problem with Importing multiple files
I need to import about 100000 "dat" files to my progrom. I want to do this using the last answer to this question:
Importing multiple files using a for-loop
I know that I should define a list of all ...
1
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1answer
80 views
Automating sequential import of data from web
I am trying to import data from multiple web pages hosted by a single online source. The data is posted by the source as one data set per web page for each week of the year. I would like to import the ...
1
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1answer
157 views
Importing 2d array of files
I would like to import multiple files to a 2d array.
I know to get a list of files I can do
myfiles=FileNames["*.txt"]
alldata=Import/@myfiles
Is it possible to ...
1
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1answer
199 views
How to set path of IMPORT from excel into Mathematica?
I was able to IMPORT from excel data at the start of my project when both the .nb and EXCEL XLS files were sitting in MyDocument (or some other location), but upon moving both files into my Dropbox ...
1
vote
1answer
269 views
Importing formatted, highlighted text from : HTML vs RTF vs. XML
We would like the ability to import and analyze ASCII documents that have been manually segmented by highlighting and changing font colors of various sections, eg:
The original line breaks, ...
1
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0answers
45 views
Exporting Specific Cells of Many Workbooks into One using Mathematica
I currently have a large number of detailed files from which I would like to extract certain cells' information to make an Archive spreadsheet.
There are approximately 9 parameters of each ...
1
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0answers
54 views
Significant platform-dependent efficiency when importing data?
I'm curious, as I understand that answer this way:
If you are using a Linux derivative or something like cygwin on
Windows, then this is an efficient solution for reading only the third
field ...
1
vote
1answer
72 views
How to make the plot from geotiff format
I have a "GeoTIFF" format map, and I have imported it into Mathematica, then I used the Graphics to plot a point on the map. ...
1
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0answers
101 views
Transferring a list from one notebook to another
I have Mathematica code split into two notebooks. The first part is supposed to run and output a list of numbers into a text file, using Export. The second part ...
0
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2answers
110 views
Import large amount of data with time stamps
I have a large data file (150 000 lines) which I want to import in Mathematica. The first few lines look like this
...
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1answer
101 views
Read a file into a list of vectors [closed]
I have file structured as (Axis 1) (Axis 2) Data.
As an example:
...
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1answer
166 views
Import Excel sheet into 3D array?
I have an excel spreadsheet that I would like to plot in a 3D graph using mathematica. The X and Y values are the location of the cell, and the Z value is the number of the scale.
How can I import ...
0
votes
2answers
119 views
Exporting lists with two extensions to files
Continuation of this question: How to export if I need to have two extensions instead of one. E.g., in the previous case one can generate lists labeled L[1], L[2],.....and so on using a loop. But if I ...
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votes
1answer
237 views
How do I plot a 3D vector field using a data file with three x y z columns?
I have a data file that is the solution of the laplace equation on a rectangular area, which has three columns: x, y and z with their numerical values.
How do I plot this data into a vector field with ...
0
votes
1answer
223 views
How to specify DataRange in a ListPlot with an imported set of data
So I've been trying to import a large set of data (6900 point pairs) from an excel (.xls) file. The Exel file has 2 columns of numeric data. I've also been trying to plot this data, but when I do, it ...
0
votes
1answer
79 views
Importing RSS to Notebook: How to get images instead of long ugly links?
This question on importing news headlines via a RSS feed reminded me of an old question I've been meaning to ask.
Past attempts at finding a use for Mathematica's RSS to Notebook capabilities were ...
0
votes
2answers
94 views
Convert *.txt file
I would like to Import and Convert a *.txt file which looks like:
https://docs.google.com/file/d/0Bw-308nJcF01Yl92RURCLUg4VzQ/edit?usp=sharing
and turn it into a Matrix which I can use to make ...
0
votes
2answers
82 views
Import matrices side-by-side separated by TAB
The problem is 0(TAB)0 interpreted falsely as a dark red square although it should be a dark red square surrounded by zeroes/ones. Import has different data-formats ...
0
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1answer
51 views
Error messages in importing data file
I want to copy the data in a public file (link in code below) and put each row of the data as a sub-list, i.e., in the format
...
0
votes
1answer
173 views
importing and manipulating data file
I have a large text file containing numeric data of 1000 groups each of 200 lines. The lines are unsorted. There is a 9 line header at the beginning of each group, i.e., 209 ⨉ 1000 lines altogether.
...
0
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1answer
146 views
How to get the associated popup menu?
I have threePopupMenu and they work in such a way that second PopupMenu value depends on the value selected by the first ...
0
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0answers
38 views
location of csv file when importing [closed]
I am trying to import csv file to mathmematica.
However, when I tried to import, Mathematica was not able to find the file (see below).
Do I have to move the csv file to the specific position?
...
0
votes
0answers
44 views
How to monitor the progress of Importing files? [duplicate]
I want now,how much of percentage was imported,while importing any file.
How can I solve this?
Can anyone help me?
Thank you.
0
votes
1answer
67 views
3D plot in Mathematica [closed]
I have data in my file format .dat. The data generated using 'C' program. This data file having 3 columns. How can I import this file using Mathematica? Is is possible to plot using ListDensityPlot() ...
0
votes
1answer
54 views
How to import sound file from computer? [duplicate]
I know you can import sounds/images from the Mathematica library, but I was wondering if I could import sounds I have on my computer (i.e. .wav files)? I've tried using the Import functon and properly ...
0
votes
0answers
80 views
Determining if a point is inside or outside a 3DS (.3ds) or 3DS MAX (.max) object?
Imagine I import some 3DS (i.e. 3D studio) file (http://reference.wolfram.com/mathematica/ref/format/3DS.html) or a 3DS MAX file. How could I place this model (say, the 747.3ds file in the ...
0
votes
0answers
28 views
Exporting large expression [duplicate]
I generated a huge mathematical expression (~200k terms, impossible to simplify yet) and want to save it for later analysis. Last time I did Export to *.nb file and ...
0
votes
0answers
42 views
The “Source” format of Import[], where's that from? [closed]
In my attempt to import an article from The NY Times, I found it's not working. So I did some searching, and in this thread the OP was in some similar situation.
It seems that the NYT's website is ...
0
votes
0answers
148 views
How to import data from Blender or 3DS max file?
I would like to ask how to import a file from Blender 3D application and make a isolines plot.
What I intend to do is to make a terrain model in Blender, and make a topographic map of it in ...
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votes
0answers
89 views
Do Import and Get work asynchronously? Can I prevent this?
I'm getting strange behavior in some of my notebooks that makes it seem like Import and Get load asynchronously. When I evaluate ...
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0answers
155 views
Problem with reloading data saved with DumpSave [closed]
During programming and to avoid evaluating a notebook again, I save my data with DumpSave in .mx-format. Mathematica actually ...
0
votes
1answer
134 views
Can an Interpolation function be 'saved'? [duplicate]
Possible Duplicate:
Save interpolated function
I am importing tables with sizes of 100k - 500k rows and 4 columns. The larger the table, the slower my Mathematica runs for all computations ...
0
votes
0answers
128 views
Importing a Matlab-generated .SET file with embedded .BDF [closed]
I asked this Q on stackoverflow (and also a couple of colleagues) but still no answer
http://stackoverflow.com/questions/11142962/extracting-bdf-from-matlab-generated-set-file
Anyone know how to ...
-1
votes
1answer
184 views
Why does the PlotStyle not apply globaly when I plot multiple data files
I have several data files which contain columns of data. All my files follow the same format data001.out, data002.out, ... , data00n.out. I want to import and plot all of them simultaneously. In ...
-1
votes
1answer
176 views
Importing Quicken Tab Delimited .*TXT File and plotting
I am using Mathematica 7 to try and plot my quicken data file. I have exported my quicken file as a .*TXT and have made zero changes to it. I want to do a ...
-4
votes
1answer
71 views
Exporting data from different notebooks to a common file
I am doing some calculations from different notebooks. I need to export the results from all those notebooks in columns of the same file, like
a1 b1 c1
a2 b2 c2
a3 b3 c3
. . .
where a, b ...
