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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2
votes
1answer
58 views

Cloud, manipulate based on a external dataset

My question is about creating a Manipulate based on a external dataset (in my private Cloud) and publish it in the Public Cloud. ...
1
vote
0answers
106 views

How to Import .ibw files in Mathematica

Can anyone tell me how to import .ibw (igor binary wave) into Mathematica?
1
vote
0answers
55 views

How can I use Mathematica to get the translated result from the Google Translate webpage? [duplicate]

I would like to use Mathematica to automatically translate some input texts, from one language to the other one, then apply some manipulation of a string on the text. I know how to realize the ...
0
votes
2answers
189 views

Exporting and Importing solution sets from NSolve

I have a rather large data set that I need to solve for, then save to my hard disk and import in the same format at a later time. This proves to be tricky. I use ...
4
votes
0answers
156 views

How to speed up import of large csv table?

Loading less than 2 gB of csv data took 5.29 hours: ...
2
votes
1answer
106 views

Saving an XMLObject imported inside a notebook [duplicate]

In a notebook, I import an XMLObject from a html file with this code line : XMLData = Import["Z:/XXX/XXX/XXX.mw", "XML"]; In order to have all the data in the ...
1
vote
2answers
131 views

How to cut imported audio?

How to cut an audio clip imported by the Import function? E.g. I'm interested in the content starting from the 100th sample up to the 200th. I'd like to avoid ...
0
votes
1answer
86 views

Problem with ReadList, record separator is not working

I have entries in a file with the following form: 3579038 2cc567cda3afd5e1d5406152e8ba77024c46ecda 2742564 4202599 093e88c26bd1637d12253115bd5a8a81531ba68f 2742821 3579039 ...
1
vote
1answer
85 views

Import a jpeg file and a mov file and display them side by side

I am planning to use Mathematica for a presentation. In one of the slides I need to place a jpeg file side by side to a mov file. ...
0
votes
0answers
78 views

Pulling the boundaries from a Solidworks Profile in Mathematica

I'm currently trying to take a 2d profile generated in SolidWorks and use mathematica to analyze it. I need to pull lines that represent the boundaries of the shape from an image of the shape. . My ...
2
votes
1answer
96 views

Problem with plotting data (.csv)

I have a problem with plotting the data of a recent experiment. I'm quite new to Mathematica, but searched the documentation and forums without solving my issue. My data is stored in a .csv document, ...
0
votes
2answers
93 views

how to read a list from a file which has mixed types of data?

I need to read in a file with the first several lines reading as ...
1
vote
1answer
135 views
2
votes
1answer
220 views

Binary file gymnastics

I have an unformatted binary file generated by fortran 77 and i want to import it in Mathematica. The file is formed by 5 data arrays with double precission float numbers. The problem is that seems ...
-2
votes
1answer
66 views

Doing calculation on an imported data file [closed]

I have a data file which has been calculated from mathematica code and saved in test.txt, I need to import the data and do new calculation on it, here is the simple ...
1
vote
1answer
77 views

TSV import issue

I am having an issue importing a tab-seperated file properly. Most lines get split into elements based on the tabs but some don't: ...
4
votes
2answers
52 views

NaNs in tabular data and import performance

I'm working with some data files that are just too large for Import. I tried using ReadList, specifying either ...
1
vote
1answer
102 views

Retrieve XML Tree with only specific XMLElements

I would like to retrieve the XML Tree of a XMLObject with only specific XMLElements. In the help of Mathematica TransformingXML,...
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 "...
0
votes
1answer
134 views

Importing large data without using Import [closed]

I have around 240 files with lots of data, I have been using Import[] to import these data for further processing. But as my simulations are growing bigger, I am ...
1
vote
1answer
191 views

Import csv file which contains columns of different lengths --> How can I delete empty fields?

I have the following problem: I want to import a csv file into Mathematica. I file as a lot of rows and columns, but the column lengths differ for certain rows. 2 columns always belong together, ...
1
vote
2answers
192 views

How can I import a table from a Wikipedia page?

I'm trying to import this table from a wikipedia page containing the list of lunar missions into a Mathematica as an Association. Here, I'm trying to use the new <...
1
vote
1answer
89 views

Importing Data Issue, Breaking Up Elements

I am trying to import a comma delimited text file as a Table and I am having two issues: First, the file imports all of the numbers that should be separate columns as a single string. This is not ...
3
votes
2answers
91 views

Manipulation of .csv imported data — no blanks in either of two lists

Above is a .csv file. I am trying to construct two lists of male and female math test scores such that only districts which include info for both male and female students are included i.e. neither ...
0
votes
2answers
167 views

Specific excel data needed in a list

I need to create a list from a general Excel database that requires only data from "ALL STUDENTS" rows on columns 2 and 7. The List most be of the form {DISTRICT, MATH} where the MATH score is ...
1
vote
1answer
116 views

Importing a 3D table from excel

I have a 3D table that I'm able to plot using ListPlot3D, but when I export the table to an excel file and try to import the saved data, the format is different. The imported table seems to have ...
0
votes
1answer
145 views

How to import data from a .mat or a .txt file and manipulate dimensions

I'm new to Mathematica (I know very, very little - so I apologize if anything I say is absolutely wrong) - but I'm trying to upload a file from matlab and arrange it in matrix form. I have a .mat file,...
1
vote
1answer
185 views

Read a compressed ascii data file?

I would like to write a filter for Import to handle data files that are generated by LabView in the LVM format. This should be straightforward, since the format is ...
3
votes
1answer
66 views

How to force Mathematica to interpret a file as HTML?

Some web pages do not explicitly contain the file extension "html" but is formatted that way (like this one). If I saved this page to my computer then Mathematica could parse it correctly. But if I ...
1
vote
1answer
308 views

How to scrape image search engines?

I'd like to download highest resolution images possible from the search results like these: ...
0
votes
1answer
93 views

Import mixed graph from Excel

I am new to Mathematica. I want to use the software as it allows analysis of mixed graphs (directed and undirected edges). I have my network as an Excel spreadsheet of three columns: source, target ...
0
votes
2answers
110 views

How to import website data which has an unknow format? [closed]

I want to import data from this website: http://hq.sinajs.cn/list=sh601006; It should look like ...
2
votes
1answer
113 views

Make animation with multiple external data files

I am currently solving PDEs for a discrete vector field with C++. The output at a time t is an array where each row represents a site and there are 6 columns, the first 3 give the position of the site ...
1
vote
4answers
134 views

Mean duration between two specific data points

I have dataset such as: ...
0
votes
1answer
93 views

Mathematica: issues storing nested list on disk

having trouble with mathematica using nested lists. I want to save a list like this: l1={{a1,{a,b,c,d,e}},{a2,{f,g,h,i}}} So, the nested components do not have ...
6
votes
1answer
182 views

Is there a way to embed a data set in a notebook?

I have a data set (currently a table in a .csv file). I would like to share this notebook with colleagues either as a notebook, or (even better) as a CDF document. Is there a way to embed the data (...
1
vote
1answer
55 views

Importing files into mathematica from flashdrive

I don't know why I can't get my files to import from my flashdrive into my notebook. I have .mat files and .cvs files. I've tried this ...
0
votes
1answer
128 views

Import and export without changing number format

I have a complex file that is the output of a program. The file contains multiple columns with data in different number formats. For example: ...
4
votes
1answer
293 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 ...
0
votes
1answer
86 views

Union of large sets

I am trying to take union of thousands of set containing thousands of elements. However mathematica closes itself when I copy/paste the sets in Union[{}]. Do you ...
-1
votes
1answer
151 views

Function for importing and plotting data from excel spreadsheet

I know this must be a very basic question, but I could not find any answers. I need to create a function that: 1) imports data from an Excel Spreadsheet, 2) assign specific information from this xlsx ...
1
vote
1answer
67 views

How to import a file for processing but not for displaying? [closed]

Here's my problem, I want to take what I have now for code ...
4
votes
0answers
51 views

Import succesful when file manually deleted

apparently Import keeps an imported file i the cache and doesn't complain for some time if a file is deleted manually from the system and then it is imported. If the file is deleted from within ...
0
votes
1answer
56 views

Reading a .txt file with numbers

The .txt file is: tb_FeSe_22_12_2014.csv 0.00102786 (-0.000421863,1.58589e-09)(-4.04766e-05,2.67116e-07)(-8.4396e-06,-1.54976e-07) I would like to Import it to Mathematica such that I have: ...
9
votes
1answer
504 views

Mathematica doesn't read .mat file

Bug introduced in 6.0 and fixed in 10.2 (July 29, 2015) To be honest, I don't know if the problem is with Mathematica, or with the file; it's been generated by PicoScope, a PC-based oscilloscope ...
0
votes
1answer
78 views

ReadList and ToExpression

My dataset is like: id, feat_1, feat_2, feat_8, feat_9, feat_10, feat_11, feat_17, feat_18, feat_22, feat_2, target 1, 1, 0, 0, 0, 0, 1, 2, 0, 1, 0, Class_1 2, ...
0
votes
1answer
139 views

Import GEXF graphs into Mathematica?

Is there any smart way to import gephi graphs (*.gexf) into mathematica ? I mean other than converting to *.gml.
0
votes
1answer
149 views

Is there a better way to download images in parallel?

Is this the best way to batch save a list of image urls in parallel? ...
2
votes
1answer
190 views

Dynamic importing of json file is not refreshing

Running Dynamic[Refresh[Import["foo.json"], UpdateInterval->1]] or json := Import["foo.json"] then ...
1
vote
1answer
312 views

Cannot import Excel (xls or xlsx) files which have non-ASCII characters in the name

It seems mma9 works fine, but with mma10 it fail to load a file name with Chinese characters. I use MacBook Pro(Retina) with OSX 10.10.2, and Mathematica 10.0.0.0. I need the file name with Chinese ...