Questions tagged [csv-format]
Questions about the text based file format CSV (Comma Separated Values). Questions include, but are not restricted to, importing from and exporting to this file format.
138 questions
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How to delete line breaks in imported data
I am having a lot of issues trying to import data into mathematica and then clean the data so that mathematica recognises it. The data is a set of permutations, which I would like to express as ...
- 997
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Regarding exporting a csv file in a particular arrangement
I have a CSV file, containing multiple columns $f_i$ , $g_i$ and $h_i$ in the following format. The columns with the same index correspond to one set of values.
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Why is StringSplit dropping empty entries? [closed]
I am parsing a CSV and whenever the trailing records are empty:
StringSplit[",2,,4,,",","]
I get:
{"2&...
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Removing empty values after importing CSV file
I am trying to import a CSV file with the following structure:
the 1st column has 15 values,
the 2nd column has 10 values,
and 3rd column has 15 values.
But when I import and try to access the 2nd ...
- 887
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Trying to plot a CSV file and getting a blank graph
I am trying to plot two NMR line graphs superimposed to show a before and after. I was able to successfully do it with excel files but the CSV files have been giving me trouble. This is my code. I ...
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Import complex numbers from a CSV file created in MATLAB
I export a simple CSV file created in MATLAB with complex numbers, such as:
0.1+2.1i,0.9+0.13i,0.02+0.3i
I would like to import it into Mathematica with the "i" recognized as the imaginary ...
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1
answer
143
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Having issues creating rules from a CSV import
I'm importing a CSV file with two columns. I've done this with other files, but this one is causing issues when trying to create rules to associate IDs with the titles. Here's a sample of the ...
- 189
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How to import, read and convert a .bib to .csv format?
I have a document in .bib format, namelad by savedrecs1.bib, obtained from Web of Science.
The document have a set of reference, of the type:
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- 1,343
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175
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Importing an unusually formatted text file and converting to CSV
I have some data that looks like:
...
- 2,303
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69
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Data Export not working when running module using Wolframscript compared to executing in notebook
I have a Mathematica module im_solver.m that I wish to iterate through Python or a bash script. The module runs a bunch o' other modules. At the end im_solver.m executes a diagnostic.m that collects ...
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119
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Why is Import[file, "CSV"] faster than Import[file, "TSV"]
I have a lot of data which use tabs as field separators. There are no tab characters in their fields. The data are all alphanumerical, strings are not enclosed in quotes.
Theoretically ...
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Graph blockchain transaction data
I am new to Mathematica, and i am trying to Graph some blockchain transaction data. I would like the Addresses "From" & "To" to be the Nodes/Vertices, and the edges to be a ...
- 11
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154
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How to convert a CSV entry from a String to an Expression?
I have a list that looks like this:
{{"74.28300000000003,90.32258064516131"},{"75.06400000000004,92.90322580645163"}}
To be able to use these ...
- 21
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ListLinePlot: Options expected (instead of ImportCSVToDataset
I have the following code
...
