tabulate() is not working properly

I have a table and I try to tabulate a column of the table, say the name of the column is "price". This column has values of 0,30,60 and 90. And I want to see the frequency counts. But when I say "tabulate(table.price)" it will return an error "Undefined function 'tabulate' for input arguments of type 'single'". This also happens for other data types, for example "Undefined function 'tabulate' for input arguments of type 'int8'", Undefined function 'tabulate' for input arguments of type 'categorical'", etc.. What is the type that tabulate() can work on and how can I solve this problem? Thanks.

Answer 1

[Kevin Claytor]

It sounds like you don't have the tabulate function. This is included with the stats + machine learining toolbox. Can you paste the output of the "ver" command into a reply?

If you just want the histogram counts, consider:

[counts, centers] = hist(table.variablename)

[Binzi Shu]

Yes I have it. I did try "ver" and I saw the name of this stats+machine toolbox....

[Kevin Claytor]

In that case, you may be over-riding it with another function or variable. Can you stop your code right before the error (eg; with a breakpoint) and copy the output from:

>> which tabulate

and

>> whos tabulate

Answer 2

[Kafayat Olayinka]

price=[0,30,30,60,60,90];
tab=tabulate(price);

output for tab:

price count %

0 1.0000 16.6667

30.0000 2.0000 33.3333

60.0000 2.0000 33.3333

90.0000 1.0000 16.6667

plot(tab(:,1),tab(:,2));