'mtimes' error and how to fix it

I am writing code and this error keeps popping up and I am not sure how to fix Untitled5

v = importfile('v.TXT', 1, 3409);
deltaL=v(:,2);
F=v(:,3)*1000;

Undefined function 'mtimes' for input arguments of type 'dataset'.

How do I fix it? Thanks

Answer 1

[Walter Roberson]

You could try

F = v(:,3) .* 1000;

but please tell us what

which -all importfile

indicates. The versions of importfile() that I am finding do not return any value.

Are you possibly wanting importdata() instead of importfile() ?

[Sean de Wolski]

importfile is the default name for a function that is automatically generated from the Import Tool.

[Image Analyst]

Mikaell's "Answer" moved here since it's not an answer to his original question.

It doesn´t work. You have a true.. I want importdata(), but whe i try it: com.mathworks.jmi.MatlabException: Too many output arguments.

Answer 2

[Mikaell]

http://uloz.to/x1uBUQW4/vzorek136-txt = v.txt

Answer 3

[Sean de Wolski]

v appears to be a dataset. If you want to multiply one of the variables in this dataset with another, you'll need to extract it.

If the variable has a name, you could use dataset.variable_name to extract it. So for the documentation example:

http://www.mathworks.com/help/releases/R2013b/stats/datasetclass.html

hospital.AtRisk * pi

Answer 4

[Matt J]

 F=double(v(:,3))*1000