Have a table with three prompts per date and want to split it up

I have survey data from a table that was sent three times per day so a subject could have anywhere between 1 and 3 responses per day. The issue is that all of these dates are within the same column and I'd like to split it up into three different columns. For the dates

Here is a sample of the data. If you have any advice, please let me know! Thanks

Ideally, this is how I would want it to become.

[dpb]

I would venture it's probably not needed to split the data physically and, in fact, will be harder to analyze/process/code if do, than don't.

Use grouping variable(s) and the various splitapply workflow tools -- with a timetable there are a number of other builtin tools as well...

Answer 1

[Cris LaPierre]

I would look into stack and unstack functions. Share your data, and we might be able to provide more help. You can save it to a mat file and attach it using the paperclip icon.

[BA]

i=[3:53];
Survey_Prompt_Unstack = unstack(Survey_Prompt, 3, i);

Thanks for mentioning the function to me. I'm unfortunately unable to figure out a way to get it to work with my data set. I have attached the data. Each time I try to run the command above, I get this message:

%Error using tabular/unstack
%The indicator variable must be specified as a single variable.

[Cris LaPierre]

The way your data has been collected, there is no simple way to do this. Do you have any additional details that could be used to identify/discern between the 3 surveys? Also note that there were 4 surveys on Aug 7.

Even something like a timestamp could be used for this purpose.