Split Table data based on Day Names

Question

Ganesh Naik 2021-4-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/804126-split-table-data-based-on-day-names

评论： Star Strider 2021-4-17

Sample.csv

Hi all, I would like to split the table data based on Day Names (sample data attached). In detail, for my data I would like to split the table data for Monday, Tuesday etc (seven days) separately. Many thanks in advance

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Answer 1

Star Strider 2021-4-16

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https://ww2.mathworks.cn/matlabcentral/answers/804126-split-table-data-based-on-day-names#answer_676966

在 MATLAB Online 中打开

Try this:

C1 = readcell('Sample.csv');
[G,ID] = findgroups(C1(:,6));
% Idx = [4 2 6 7 5 1 3];                                      % Manual Ordering
DayCell = splitapply(@(x){x}, C1, G);
DayStruct = cell2struct(DayCell,ID)

producing:

DayStruct = 
  struct with fields:
       Friday: {41×8 cell}
       Monday: {32×8 cell}
     Saturday: {41×8 cell}
       Sunday: {40×8 cell}
     Thursday: {32×8 cell}
      Tuesday: {33×8 cell}
    Wednesday: {31×8 cell}

.

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Ganesh Naik 2021-4-17

Hi Star Strider thank you very much for the answer. It is working for me. I am going to accept this answer.

Star Strider 2021-4-17

As always, my pleasure!

Thank you!

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Answer 2

Steven Lord 2021-4-16

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https://ww2.mathworks.cn/matlabcentral/answers/804126-split-table-data-based-on-day-names#answer_676941

Do you want to have seven individual variables or do you want to operate on the set of rows in your table data where each row in the set has the same day name?

If the latter look at findgroups, splitapply, groupsummary, grouptransform, and the other functions listed in the "See Also" sections of the documentation pages for those functions. The stack or unstack functions may also be of interest. Alternately turn your table array into a timetable array and see if retime does what you want.