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.
10
votes
4answers
445 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[ ] ...
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 ...
3
votes
2answers
624 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
401 views
Stream CSV files
Ram limitations make import impractical for large CSV files. Is it possible to Stream CSV correctly?
...
2
votes
2answers
299 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 ...
2
votes
1answer
125 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 ...
1
vote
1answer
202 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 ...
0
votes
2answers
332 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 ...
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
...
