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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3
votes
2answers
250 views

Since installing mathematica 9 I can't import certain tiffs

I have a notebook written in Mathematica 8 in which I imported Tiff images and everything worked fine. Since I installed Mathematica 9, I get the error: ...
1
vote
1answer
690 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 ...
-1
votes
1answer
262 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 ...
6
votes
1answer
425 views

Accessing data on local machine from remote kernel

I have a remote kernel on a server that I would like to use to process some data. The connection works, i.e, I'm able to use the local front end and the remote kernel. However, I cannot figure out how ...
3
votes
1answer
398 views

Mathematica - set end-of-line characters when importing

I have a plain text file of tab-separated values that was created on a Windows machine. I want to import it into Mathematica on a Mac. ...
5
votes
1answer
121 views

Why can't an `Import[]` change $Path?

Does anyone know why Import["http://**server**/file.m"] can't make a change to $Path? It seems like ...
0
votes
0answers
193 views

How to import data from Blender or 3DS max file? [duplicate]

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 ...
0
votes
2answers
138 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 ...
1
vote
2answers
1k views

Can I improve the importing speed of Excel data?

I have data in an Excel spreadsheet that has 4 rows and 1,000 columns. I am using Import as follows: ...
2
votes
1answer
126 views

Import a file only if it contains a certain pattern

Let's say I have three files containing: File 1: x y z 1 4 6 File 2: x y z 2 5 9 File 3: x y z 5 4 8 My goal is to import the data from a file only if in ...
0
votes
1answer
563 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 ...
4
votes
1answer
279 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: ...
3
votes
1answer
421 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 ...
5
votes
1answer
1k views

Combine multiple PDF files into one document

I have multiple single page PDFs I'd like to join together into a single file. (Obviously I mean the file format and not the probability distributions here!) I'm aware of free online services such as ...
0
votes
1answer
411 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. ...
-1
votes
1answer
355 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 ...
5
votes
0answers
61 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: ...
1
vote
1answer
826 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 ...
4
votes
4answers
753 views

How can I get rid of extra commas in Export/Import?

Consider the following example of trying to export the following table: Export["test.dat", {{{1, 1}, {2, 2}}, {{3, 3}, {4, 4}}}, "Table"]; Now I import to see ...
1
vote
1answer
558 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, ...
3
votes
0answers
104 views

External file Sub Matrix Import

Is there a Built-In Mathematica Function to extract a Sub matrix from a huge external file? Functions getting pieces of internal nested Lists, (arrays) are in place. Example: ...
10
votes
2answers
241 views

How to extract a specific element from EXIF photographic metadata?

It's now possible to import photographs into Mathematica and import the EXIF data at the same time: i = Import["ExampleData/coneflower.jpg", "ImageWithExif"] ...
3
votes
1answer
492 views

Exporting/Importing a Table of complex numbers

I'm generating a long table of list of the form: PN={{1,2,1+i},{3.5,2.6,2}...},{...},... Using: Export["PN.dat", PN, "Table"] ...
5
votes
0answers
130 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
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 ...
7
votes
2answers
1k views

Import Fortran unformatted binary

I have an unformatted binary file generated using the Compaq Visual Fortran compiler (big endian). Here's what the little bit of documentation states about it: The binary file is written in a ...
20
votes
2answers
3k views

How to import all files of a folder at once?

I know how to import one textfile by calling its name filestring = Import["myfile.tex", "Text"]; Then "filestring" is a string with the myfile content. How do ...
9
votes
5answers
786 views

convert long string to integer list

at first, i would like to thank all the people here. i'm working with mathematica for half a year now and always found great advice and tricks. now, i came up with a problem i couldn't find a ...
7
votes
1answer
405 views

Converting XMLElement objects to plain text

Short version: How can I convert an XMLElement that represents part of a HTML document to plain text? Long version: The more general problem is extracting ...
25
votes
3answers
2k views

How to read data file quickly?

I have a tab separated value file with 10 million rows each of which has three tab separated values. The first value is a string, the second an integer, and the third another string. How to read ...
8
votes
2answers
4k views

Import selected columns from a tab delimited text file

I have a very huge file (1GB) from which I desire to import only the 5th column. It is a tab delimited text file with a .txt extension. Can you please help me with ...
1
vote
1answer
298 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 ...
6
votes
2answers
768 views

Why does importing a URL fail the second time and produce a FetchURL::conopen error?

I have Mathematica code that uses Import[] to download URLs. I noticed that first time I use the Import[] command it works. ...
2
votes
1answer
132 views

Implementing a For (?) or series or loop (?) for individual results for every x to n

I'm working on improving a modeling formula and have spreadsheets worth of data to use, but my work so far has been quite tedious. I'm essentially pulling 20 rows of data from each separate sheet of a ...
3
votes
2answers
190 views

Import[] exception possibly caused by ToString[] behaviour which I cannot explain

Let me just start by pointing out I'm a new StackExchange user as well as a new Mathematica user (started today!) I mention this as a context to my ineptitude :) I am attempting to read through a ...
0
votes
1answer
715 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 ...
11
votes
4answers
1k views

Import[ ] drops leading zeros from data when importing a CSV file

I need to load data from the CSV file shown below. Import[ ] drops the leading zeros in column 3 when it imports the CSV file, but they are security identifiers, and I need them. ReadList[ ] ...
2
votes
2answers
193 views

Import[] bug (video)?

I have the following code: frames = Import["myvideo.avi",{"Frames",{50,60,70}}]; This imports frames 1,2, and 3 of the video, not 50,60 and 70. It imports the ...
10
votes
1answer
538 views

How to import date (YYYY-MM-DD) data from a file?

I have a file with data in form {date, value}: 2010-05-19 17 2010-05-20 20 ...
-1
votes
1answer
2k 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
117 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 ...
7
votes
1answer
826 views

Import file from FTP site

I would like to Import files from an FTP site. The code below works on a test site: file = Import["ftp://test:test@ftp.secureftp-test.com/pigs.xml"]; But when I ...
4
votes
2answers
958 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?
6
votes
2answers
661 views

Trying to extract information from an MDB file. Import is too slow

I am running a Linux box and as usual the documentation for this type of box is not great. I am trying to open up and extract and possibly include later on information from a "mdb" file. The file ...
3
votes
3answers
582 views

How can I change the CDF which imports the data and uses it, without execution of code

I am making an application which first imports the data from the Excel file and then uses it in the deployment of a CDF. But is it possible to change the data of the Excel file and see its ...
10
votes
2answers
3k views

How to get Matlab data imported with the same dimensions?

I have some Matlab image data with the following dimensions (output is from Matlab): >> size(im) ans = 86 86 3 45 The data imports just fine ...
6
votes
1answer
576 views

Import numeric values from XML

I am trying to import data from an XML file and then perform calculations on those numeric values. When I import the data the values seem to be stored as strings. I tried using a ToExpression ...
6
votes
1answer
309 views

ESRI shape files

ESRI shape files (shp): importing the polygon data can yield a very large list. It is computationally intensive rendering the polygon. I have been trying to convert to ...
4
votes
1answer
270 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 ...
3
votes
1answer
295 views

Exporting lists to files

I am trying to write a program which will generate a list of objects and then exports it in a separate file and clears its memory. As an example I tried the following ...