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RSS Feed for Wolfram Community showing any discussions in tag Import and Export sorted by activeEdit a netcdf file?
http://community.wolfram.com/groups/-/m/t/1359920
Hi Mathematica experts.
I am new to Mathematica, so I have a question.
How can I edit netcdf file in Mathematica?
Many Thanks.
Samadabdossamad r2018-06-20T13:27:04ZImport a list of data and apply a function to one of the coordinates?
http://community.wolfram.com/groups/-/m/t/1360123
I'm really new on programming and similar things,
I have a data, import on math (with the command data= Import["PAtht"]) like {{x1,y1},{x2,y2}, etc etc}..
Is it possible to have a new list like {{f(x1),y1},{f(x2),y2}, etc (for example f(x)= a*x^2 with a = parameter )
I mean I wish to have a list of command to transform my data in new data and then plot the new data maybe also with a variable parameter .
Really thanx.Achille Angrisani Armenio2018-06-20T12:17:59Z[Job] 3D Region Modeling and Exporting
http://community.wolfram.com/groups/-/m/t/1359449
We (one software engineer, one mathematician) are looking for someone in the NYC area to do some in-person code review, and develop a short-term project with us in Mathematica. We have roughly prototyped in notebooks, but are in need of some expert help.
The project involves making 3D polygons as regions, sub-dividing those regions, and then recombining them with different rotations with the help of a GUI. The resulting 3D plots should be exportable as 3D files, and will be used in an existing iPhone app, and for 3D printing.
Thank you!Lia Emars2018-06-20T09:26:17ZExport strings without quotes to a .csv?
http://community.wolfram.com/groups/-/m/t/1357082
Writing a file from Mathematica for use by another program.
The output file will be a comma separated file.
Content of the file will be a combination of numbers and text.
The text in the output file should **not** have quotes around it.
Below is a sample data set and what I have tried so far.
row0 = {"h1", "h2", "h3", "h4", "h5", "h6"};
row1 = {"", "", "a1", 1.01, "", ""};
row2 = {"", "", "b1", 2.02, "", ""};
row3 = {"", "", "c1", 3.03, "", ""};
data = {row0, row1, row2, row3};
Export["data.csv", data];
Export["data.txt", data];
Export["data.dat", data];
Export["data.tsv", data];
Export["data.xls", data];
A summary of the results:
- data.csv -- has quotes around the strings
- data.txt -- has quotes around the strings and curly braces around each line
- data.dat -- no quotes around the strings, but the data is separated by tabs
- data.tsv -- has quotes around the strings
- data.xls -- no quotes around strings, data in appropriate columns, but this is an Excel file, which can't be read by the other program.
**One successful work-around:**: save the files as data.xls, then from Excel export to a .csv
Is there a way to Export the data so that it does not have quotes around the strings, but is separated by commas?
(Follow-up question: how to include quotes in some of the exported text. The Excel workaround fails for this case.)Robert McHugh2018-06-17T16:03:25ZDecrease a Dataset size in RAM?
http://community.wolfram.com/groups/-/m/t/1354318
Hi,
I have a question about the size of Dataset in RAM.
I have noticed that if i have a file .mx that contain a Dataset and the size on the HDD is for example 50 MB, when i import it in Mathematica the size in the RAM is about 10 times (500 MB)!
Do you know why there is so many difference between the two sizes? Is it normal?
I have noticed that if i save the same data as List and not as Dataset (without association) the size is just greater than the size in HDD.
Is there any solution that allows using the dataset without this "waste" of memory", because it is a big problem when i have to deal with a large amount of data... but the datasets are more "comfortable" than pure List.
Thank you for your help!Andrea Barresi2018-06-11T11:30:48Z