datasets related 2 questions

Hi!

I have 2 questions:

• Can I have a column in a dataset including two strings? how?
• I know how I can download a dataset or import it in matlab but I dont know how I can make a dataset when I am computing values of different variables afterwards in my program. How can this be done?

thanks

[Walter Roberson]

Are you sure that you must use dataset() from the Statistics and Machine Learning toolbox? Those are not recommended. There are a lot more tools for table() and timetable() objects

[Muazma Ali]

I must not but that is what I understand easily , have learnt using them by watching webinars. N my program requires that since I have planned the codes roughly with datasets..

[Muazma Ali]

Thanks, my problem is just that I want an array where each element consists of two words , as my grouping variable in gcatter: {"KCl", "NaCl"}

[Walter Roberson]

You cannot do that with dataset(): the string() object will get converted to cell array of character vectors. Run the code I posted

Answer 1

[Walter Roberson]

No, dataset() does not support storing string() objects. dataset() automatically converts string() objects to a cell array of character vectors.

foo = ["a", "bc";"de", "f" ]
bar = dataset(foo)

This also shows one way to build a dataset() from computed variables.

I would not recommend any new development for dataset(). I recommend that you switch to table().