is logfsgram() an inbuit function in matlab?

one code had mentioned this function. but when i run that code its giving error saying undefined function. what is other option for this?

Answer 1

[Stephen23]

You can use which to check for the existence of any function or variable name. Here I try it with sin and the function that you give in the title of your question:

>> which sin
built-in (C:\Program Files\MATLAB\R2010b\toolbox\matlab\elfun\@double\sin)  % double method
>> which logfsgram
'logfsgram' not found.

Note even if the function is not found that there may actually be a MATLAB function with this name, but that your license does not give you access to the particular toolbox that it is located in.

If it cannot be found then search these locations:

• documentation
• File Exchange
• The internet

Often these functions can only be obtained from the person who wrote that code... so you need to track them down and ask for a copy!

[danny Sharah]

thank you sir @Stephen Cobeldick. sir actually i want code for pitch tracking of audio signal and on one website in some code it was mentioned. can u please help me in code?

[Stephen23]

MATLAB File Exchange would be a good place to start looking:

http://www.mathworks.com/matlabcentral/fileexchange/index?utf8=%E2%9C%93&term=pitch+tracking

[danny Sharah]

sir @Stephen Cobeldick, i was trying code from site "http://labrosa.ee.columbia.edu/projects/pitchflow/" for pitch tracking. but stuck up because of function.can you please help me...

[Stephen23]

Ask the lovely people at "http://labrosa.ee.columbia.edu", as presumably they know more about this than any one here does. As in, they probably wrote this function. Try writing to them.