Matlab -understanding filter( )

[cutesteph]

Homework Statement

For my code for the communication system
if I have a channel implies response {.3,.6,-.3}

h=[.3 .6 -.3]

How do I get ych=filter(h,l,s) to work? I get an error when I run it. I get an error, Error: The press ion on the left of the equals sign is not a valid target for an assignment

 

[Mark44]

Just off the top of my head, you have ych = filter(h, l, s), with the middle parameter the letter l (ell). In the link, the middle parameter is the number 1.

 

[cutesteph]

Thanks.