Questions about the Text based file format CSV (Comma Seperated Values). Questions include, but are not restricted to, importing from and exporting to this file format.

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8
votes
2answers
1k views

Speeding up Import and Export in CSV format

I am handling large numerical data in Mathematica. In smaller problems everything worked fine using Export and Import with the ...
4
votes
2answers
173 views

Exporting strings without the quotes

I'm trying to export the following string "sep = ," to a CSV-file, as to be able to define the separation symbol. However, when using the following command: ...
3
votes
1answer
658 views

How do I read a CSV file and remove comments from it

I have very recently started using Mathematica 9.0 Home Edition and am trying to understand it as best I can so please be tolerant ;). I have a file of data (sugar.csv) which contains blood sugar ...
2
votes
2answers
729 views

Interpreting the interpolating function and saving data to plot with external program

So far I have been solving non-linear pdes with NDSolve and then plotting the result with the in-built Plot3D and ...
11
votes
4answers
978 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[ ] ...
6
votes
1answer
654 views

Stream CSV files

Ram limitations make import impractical for large CSV files. Is it possible to Stream CSV correctly? ...
3
votes
2answers
2k views

Plot CSV-data; make statistical statements in Mathematica / WA

First, I'm quite new to Mathematica so sorry in advance if some questions seem to be trivial. I have a CSV-file which looks like this: ...