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.
4
votes
2answers
107 views
Can Mathematica understand Excel dates when in number format?
I have a very large Excel file with dates in the format 2013/01/17 08:02:00 PM which is a custom date format. I have to convert this file to CSV in order to import it into Mathematica because I can't ...
2
votes
1answer
127 views
Beginner question. 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 ...
0
votes
1answer
133 views
Mathematica: how to make Z transformation of data from CSV File
I have a discrete Signal in my CSV File and I want to transform it in Z. I import the data with
Data=Import["T:/data.csv","CSV"]
and I try to transform it
...
1
vote
1answer
204 views
How to export CSV from Mathematica?
I have previously been using
logf[x_, y_] := f[x, y] /. v_ :>(PutAppend[Unevaluated[f[x, y] = v;], "out.txt"];);
which produces output like ...
10
votes
4answers
447 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
302 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 ...
0
votes
2answers
333 views
How can I plot Intensity values(Z) based on X and Y position. Data stored as 3 columns in CSV file
I have a CSV data file with X position, Y position and corresponding intensity as Z.
I ...
3
votes
2answers
628 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:
...
3
votes
1answer
402 views
Stream CSV files
Ram limitations make import impractical for large CSV files. Is it possible to Stream CSV correctly?
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