How to separate string data and convert it to number?

1 view (last 30 days)
I have a problem to separate this data BE1234U1234 which B is the begin of counting real time count for sensor, i.e. encoder motor and ultrasonic distance, E for encoder, and U for ultrasonic distance.
I'm using Altera to acquired data and read it to MATLAB. But I can only separate the data from B1234E for encoder only. How can I read and separate the data into 1234 for encoder and 1234 for ultasonic distance respectively?
Thank You,
Setiawan

Answers (2)

Stephen23
Stephen23 on 28 Feb 2017
Edited: Stephen23 on 28 Feb 2017
>> str = 'BE1234U1234';
>> sscanf(str,'BE%dU%d')
ans =
1234
1234
for example:
>> str = 'BE1234U5678';
>> vec = sscanf(str,'BE%dU%d');
>> enc = vec(1)
enc = 1234
>> ult = vec(2)
ult = 5678

Vandana Rajan
Vandana Rajan on 28 Feb 2017
Hi,
' ismember ' function can help you here.
>> [e_val, e_pos] = ismember('E',c);
>> [u_val, u_pos] = ismember('U',c);
>> enc_val = c(e_pos+1:u_pos-1)
enc_val =
1234
>> ultra_val = c(u_pos+1:end)
ultra_val =
1234
  3 Comments
Setiawan Putra Hendratno
Setiawan Putra Hendratno on 28 Feb 2017
At least I can separate the data. Thank you. I'll try it in my supervisor's lab.
Vandana Rajan
Vandana Rajan on 1 Mar 2017
@Stephen Cobeldick,
Yeah. I missed that part. Thanks for mentioning that :)

Sign in to comment.

Categories

Find more on Characters and Strings in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!