Importing csv file with scientific notation

8 次查看（过去 30 天）
Adolf Krige
Adolf Krige 2019-7-23
评论： Adolf Krige 2019-7-23
I am having a lot of trouble importing my csv files, I have tried: importdata, dlmread and textscan. Just cant seem to get it working.
I have 100+ files, so changing them manually is tricky
when using importdata the result end up as a cell aray: {' - 6 . 5 9 9 4 8 E - 0 0 1 , - 4 . 8 6 2 2 6 E + 0 0 4 , - 6 . 5 9 9 4 8 E - 0 0 1 , 3 . 8 2 3 7 5 E + 0 0....'}
  1 个评论
Guillaume
Guillaume 2019-7-23
The main problem with your file is that it is encoded in UTF-16LE (16-bit unicode little endian), which matlab doesn't officially support for reading and writing.
Is there any chance that you can change the settings of whichever software is writing these files so that it is written with a different encoding (UTF8 would be a lot better)?

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Guillaume
Guillaume 2019-7-23
编辑：Guillaume 2019-7-23
Unfortunately, none of the high-level functions work with UTF16, so you have to go low-level. Even then, you'll get a warning that the encoding is not supported. As of R2019a, I'm not aware of instances where it's not decoded properly, but: here be dragons. If you can change the setting of your exporting tool.
fid = fopen('test.csv', 'rt', 'n', 'UTF16LE'); %Issues a warning that UTF16 is not supported
data = textscan(fid, repmat('%f', 1, 12), 'Delimiter', ',', 'HeaderLines', 6); %Same warning again
data = [data{:}]
fclose(fid);
  1 个评论
Adolf Krige
Adolf Krige 2019-7-23
Thanks a lot, I was hoping that I was just doing something stupid.
I checked and the software has no options that I can see, it also unfortunately does not help with all the data that I already have.
It does work, however, despite the complaints.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Text Files 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by