Questions about getting data, files, images etc. from various formats into a form that can be read, tranformed and manipulated by Mathematica

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5
votes
1answer
336 views

How can I colorize an imported model?

How can I colorize an imported model from for example 3ds max? I'm trying to find the way to colorize a 3D plot from an imported model with something like this: ...
5
votes
1answer
633 views

Reading in Huge Text Files

I would like to read in really large text files (about 2GB) into Mathematica. The structure of the file is such that the first row and the first column are text i.e strings. Rest is all numbers. Is it ...
5
votes
1answer
238 views

How to import numbers or protected signs from .txt?

I'm new here, so please apologize any formal errors. I stumbled upon a somewhat simple problem. I want to import plain numbers or protected signs like Pi, ...
5
votes
1answer
254 views

Import YAML file into Mathematica

Has anyone implemented the import of YAML data files into Mathematica? I suppose some sort of transformation into a nested list of rules would be the way to do it. Thanks
5
votes
1answer
316 views

How to transform a DumpSaved .mx file to .m file conveniently?

I have many DumpSave-d .mx files under a directory. They are generated under Linux. The .mx ...
5
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0answers
32 views

Is there a way to use iframes in a notebook?

For me, mathematica online is totally unusable, but the EmbeddedServices would be great to use. I wish that these functions worked in Mathematica, is there any hack anyone can think of to get these ...
5
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0answers
81 views

why does ReadString[“fname”,term] open a persistent stream, and how to close it?

Bug introduced in 10.0 and fixed in 10.3.0 Create a file temp.txt with the following content: test1 ;;; test2 ;;; test3 ;;; ...
5
votes
0answers
122 views

WDF specification?

Motivated by a recent question on the meaning of all sorts of W* acronyms, I would like to get more information about the Wolfram Data Framework (WDF). On its web page http://www.wolfram.com/data-...
5
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0answers
267 views

ImportString JSON possible bug

My problem is when I catch up some json output of whatever method and process it with ImportString[%, "JSON"], The first time ...
5
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0answers
2k views

Import Large Excel File

Currently, I am working on a large time series dataset, which contains 928,586 rows and 35 time intervals in columns, in excel format (.xlsx) and using Import to ...
5
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0answers
64 views

Importing .zip file [duplicate]

Possible Duplicate: Importing Zip files I have a piece of code which imports a txt file and turns it automatically into a table form. I use the following: ...
5
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0answers
142 views

What is the best way (lossless) to import .skp files into Mathematica?

I am using the free version of Google Sketchup and I've got a few designs in hand, which I need to be able to import into Mathematica. I saw the similar question asked by @Sjoerd C. de Vries in Stack ...
4
votes
2answers
899 views

Check Google PageRank for a given URL

Does anyone know how to write a Mathematica function that returns the Google PageRank of a given URL? I found a tutorial for achieving this in a bash script here, but I have no idea how to port this ...
4
votes
3answers
333 views

Plotting data with exponentials

I have some data with 19000 sublists such as : {" 7.9080000e+01 1.9283193e+04"} Where the first number is the value for variable ...
4
votes
3answers
235 views

Reading binary strings from file as strings

I have a file that contains binary strings like 01011 00101 01011 I want to import the file to Mathematica as a list of strings, but ...
4
votes
2answers
247 views

How to import 12-bit TIFF image

I have a CMOS camera which records images at 12 bit resolution. The camera software allows to save them as 12-bit TIFs. However, Mathematica cannot import this: ...
4
votes
2answers
140 views

Reading from a file: complex number with small imaginary part

I'm trying to read a matrix from the next file: 1+1e-18i 24 42 23.43e-23i using u=Import["file.dat","Table"]; and then find, ...
4
votes
2answers
178 views

Workaround for Import not supporting the \leqslant TeX macro

$\{A\leqslant x\leqslant B\}$ Copy the code into Notebook, and you'll lose the less sign, this can be rendered well in ...
4
votes
3answers
3k views

Import specific data from Excel to make a plot

I need some help with this: I have imported data from an Excel file and I need to make a contour plot of it. The data are in table-like form. Here is a sample of the first few 'rows': ...
4
votes
2answers
1k views

How to process .vtk file

I want to extract the cluster of points inside 3D box, is there any way one can do this in Mathematica?
4
votes
2answers
116 views

Reading an ASCII file mixing text and numerics in Mathematica

We have a sequence of large data files (LAMMPS dump files) which begin like this: ...
4
votes
1answer
96 views

How to get sub property from json result?

I'm brand new to Mathematica and I imported a json: data = ImportString["{\"x\":1,\"y\":1}", "json"] and result: ...
4
votes
2answers
725 views

Importing array with complex numbers

This is probably an easy question: I am exporting the results from a longer calculation into a dat-File, then I set the cell to non-evaluatable and put an Import in front, so I can later work with the ...
4
votes
2answers
73 views

importing a 150 MB .wav crashes Mathematica

rawdata = Import["rawdata_10min.wav"] crashes Mathematica when the file is 150 MB, but does not crash Mathematica when the file is 20 MB.
4
votes
2answers
129 views

Import Data different column length

Lets assume, i have this data.txt file. s1/km t1/h s2/km t2/h 20 1 40 1 40 2 80 2 60 3 I define myself a function ...
4
votes
1answer
375 views

How to clean up messy data

The start of my question is about one specific situation - I have some erroneous lat/long values in a dataset which I need to clean up. But I'd like it to cover the overall topic of cleaning up messy ...
4
votes
1answer
323 views

Attaching WolframAlpha data

I have used WolframAlpha since it was launched (now a pro member) but am new to Mathematica 8. Is there a way to automatically add data from WA to a Mathematica dataset? For example, what if I ...
4
votes
1answer
2k views

Importing CSV financial data in Mathematica

I am trying to import a CSV file in Mathematica 8 with the aim of charting it with the TradingChart command. This is what I have done : ...
4
votes
1answer
434 views

CSV vs XLS for import

I need to import data from various database sources. At the moment I plan on importing files via a CSV file or XLS. All the data if in XLS would be on one sheet (notebook). Are there any advantages ...
4
votes
1answer
180 views

Order imported files by their alteration date

Probably a very easy question, but I could not find the answer, so it would be very nice if you can help me: Let us say I have 10 files, all with the extension .dat...
4
votes
2answers
146 views

Equivalent of __FILE__?

Many languages define a special identifier whose value is the path to the source file currently being processed. (For example, in C, this is done through the ...
4
votes
1answer
41 views

Loss of scale factor when reading/recording/rereading data in a WAV file [duplicate]

I use recorded data from an acquisition system in a wav file containing 6 channels, all data are encoded with 2 bytes in Integer 16. I can Import the *.wav data file and get all data in a Sound object ...
4
votes
2answers
227 views

How can I encrypt/decrypt a directory?

I'd like to use Mathematica 10's new Encrypt and Decrypt functions to secure files and folders on my mac. Here's what I have so far but something goes wrong along the way, since by the end of this ...
4
votes
1answer
365 views

Using the variable in the MATLAB workspace using MATLink or any other packages

I have a program in MATLAB and after I run the program, I get some results in MATLAB's workspace. Now, I need to use these results in Mathematica. What I currently do is that I save the workspace as a ...
4
votes
1answer
79 views

Export and Import with special unicode characters

I exported a list of characters say: ClearAll[t, r, \[Theta], \[Phi]]; Export["hello.txt", {t, r, \[Theta], \[Phi]}, "List"]; the file has the correct symbols ...
4
votes
2answers
6k views

Importing from Excel

I'm trying to import a matrix from Excel to Mathematica. My code is: Import["desktop/stproj.xls", "xls", data, 1] The output is some weird stuff about population ...
4
votes
1answer
991 views

ReadList with header and foot lines

I want to do some large data analysis, and i want to be able to import files in a fast way. I tried Import, but it is quite slow; ReadList takes half the time. This is the code I was using: ...
4
votes
1answer
739 views

Mathematica PDF import and fonts

I am trying to put nice LaTeX labels on my Mathematica plots. I can do this manually, or by introducing an extra GNUPlot step into my workflow, but it would streamline the process considerably if ...
4
votes
2answers
72 views

Excluding Specific Rows Using Import[…]

As the question states, I'm trying to import a .csv file but I would like to exclude certain rows (points which I know are bad data). This is easy when the points ...
4
votes
2answers
141 views

Extract part of a matrix

I have imported a matrix from a .txt file (it could be better from an Excel file): ...
4
votes
1answer
204 views

Problem exporting and re-importing STL file

I wrote all code and there're no errors in code. Result of code is like first picture(left). But I can't Import that structure. The result of import stl file is second one(right one). How can I import ...
4
votes
1answer
219 views

Importing malformed XML: Import[… “XMLObject”] vs ImportString[…, “XML”]

It appears that Import[ url , "XMLObject" ] is more forgiving of improperly formatted XML than ImportString[ string, "XML"]. For ...
4
votes
1answer
231 views

How to prevent output truncation when importing large Graphics?

The Evaluation Preferences in Mathematica specify a maximum output size of 1048576 Bytes before truncation occurs. That makes a ...
4
votes
2answers
2k views

Reading in scientific notation from C++ to Mathematica

With a text file with entries formatted as (output from C++): f[38.67] = -2.5387862698183892298317350539374412777263289550697e-05; ⋮ Is there a way to read this ...
4
votes
1answer
207 views

PDB Graphics Options: Opacity and Scale to superimpose on 3D point plot

I am trying to superimpose a pdb file into a 3D plot of points extracted from the pdb model, while making the pdb somewhat transparent for easy viewing of plotted points. My problems are as follows. ...
4
votes
1answer
102 views

How can I import html fragments as formatted cells?

I see that there is limited support for "HTMLFragment" in Export, but I figured with all the work that went into porting Mathematica into the Wolfram Cloud there should be a way to Import "...
4
votes
1answer
297 views

mathematica use too much memory to Import large dat file

Err... When I try to Import a .dat file by dat = Import["D:\\TIEGCM\\solar_input\\omni_m_all_years.dat", "Table"]; or ...
4
votes
2answers
543 views

Importing High Precision (22 digits) data from a file

I want to import list from a file and I am using ReadList but my data is in format like this 8.2457409790900004e+08 but it i being imported like $8.24574*10^8$. Is ...
4
votes
1answer
332 views

Importing FITS file from HEALPix

I am trying to read FITS file created by HEALPix software. The file contains a spherical map of a scalar field. There is the online support on how to use the file in IDL, but not for Mathematica. I ...
4
votes
1answer
523 views

Running external pdflatex command and importing the generated PDF document

There have been a couple of questions about incorporating labels and equations that were typeset in $\LaTeX$ into a Mathematica notebook. Ideally, this requires running ...