Whats is wrong with my stepinfo function?How can I get numerical values instead of [1*1sym] and inf for below parameters?

My code is in attached file .m file. Whenever i run my script to find stepinfo ,it gives me below error. What can be the reason of it? The peaking time os correct though

RiseTime: [1x1 sym]

SettlingTime: [1x1 sym]

SettlingMin: [1x1 sym]

SettlingMax: [1x1 sym]

Overshoot: Inf

Undershoot: Inf

Peak: [1x1 sym]

PeakTime: 7.7714e-09

EDIT: After adding Tn = structfun(@double,S1)

my answer is as

Tn =

0.0000

0.0000

-0.0457

0.0003

Inf

Inf

0.4031

0.0000

Answer 1

[Walter Roberson]

The only error I see is a warning about extra legend entries, which occurs because you are only plotting da3t but are asking to legend() for all 3 DAs.

Alternate code:

plot (time * 1e9, [da1t.', da2t.', da3t.'], 'LineWidth' , 2);

[Syed Adeel]

My question is how can i get nuerical values instead of [1*1sym] in below

RiseTime: [1x1 sym]

SettlingTime: [1x1 sym]

SettlingMin: [1x1 sym]

SettlingMax: [1x1 sym]

Overshoot: Inf

Undershoot: Inf

Peak: [1x1 sym]

PeakTime: 7.7714e-09