Tagged Questions
2
votes
4answers
188 views
Importing or reading data in binary format 212
I have a binary data file in format 212, and I want to import the file into Mathematica. How do I read or import binary format 212? I almost have no direct experience of working with any binary ...
0
votes
2answers
109 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
...
0
votes
0answers
154 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 ...
3
votes
0answers
76 views
Getting EPS imports to respect the original fill rule
One major problem in my attempt to answer to the CountryData flags question is that the way Mathematica handles filled curves differs from the way SVG and EPS style editors do. The latter two have the ...
6
votes
1answer
170 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
2answers
313 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
212 views
Support for Compressed Sparse Column sparse matrix representation
Is there native support for Compressed Sparse Column (CSC) format for sparse matrices, like importing and manipulating them?
20
votes
3answers
835 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 ...
6
votes
3answers
172 views
Organizing similar datasets using DownValues instead of Contexts
In his answer to this question, Leonid helped me find a way to programmatically generate contexts for holding sets of symbols with the same names. Perhaps a simpler way is to use ...
7
votes
1answer
112 views
Organizing similar datasets using Contexts or otherwise
I often import several long time series to analyze something about a city. When I have multiple cities, I use contexts. As a simple example,
...
11
votes
3answers
311 views
Data of badly formatted file
Similar as in this question, I have to read in data from a file (exampleFile.txt) which is not so well formatted.
Unfortunately, I cannot find a solution by myself. Since it is a bit complicated to ...
4
votes
3answers
244 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 ...
