how to insert input in my transfer function model that i've created using System identification toolbox.

Hi everyone.

I've already create the transfer function model by using system identification toolbox. In order to check how it matches, i want to insert the input into the model equation that i got. so that, i will get the output and compare it with the output that I used to get the TF. My major problem is: I dont know what is the command/function that I'm supposed to type to insert the input to the model question that I got.

I really need someone's help here. Thanks in advance!

[Walter Roberson]

lsim() perhaps ?

[redroses]

Patient6_fast_01= xlsread ('fast_P6_1.csv');
AnklePower= Patient6_fast_01(1:91,9);

speed = Patient6_fast_01(:,28);
H = tf1
lsim(H,speed,AnklePower);

is that correct?

[Walter Roberson]

speed seems unlikely to be the name of a variable storing time?

[redroses]

I'm sorry but can you explain about that? currently speed is my input for this data.

[Walter Roberson]

The second input to lsim() must be time-stamps, and the third input must be the corresponding data for those time stamps.

A variable named Speed seems unlikely to be time stamps. Speed tends to go up and down, rather than increase monotonically as expected for time stamps.