Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Compare and replace elements in matrix

Compare and replace elements in matrix

Compare and replace elements in matrix

i have a matrix which has 16 columns and varying number of rows.. i
need to replace the elements ranging from -50 to 50 with zero and the
rest should remain the same.. i have coded for a single element
search and replace which is
[m, n] = size(Data);
for i = 1: m
   for j = 1:n
       if ( Data(i,j) == 1 )
           Data(i,j) = 0;
but how do i do it for a range of -50 to 50 instead of a 1 in my
code.. could anyone help me out.. also please suggest me if there are
any matlab function which does this with out the use of the for

RE: Compare and replace elements in matrix

Is this a homework problem?


RE: Compare and replace elements in matrix

it isnt a homework.. i am trying some stuff out... which i want to implement completly in matlab with as less number of loops as possible making the complete use of matlab inbuilt function.. but its so vast to read... so i am posting some of the general issues that i come trough.. help me if u could

i think i found the soln for this.. but help me in future

RE: Compare and replace elements in matrix

I don't do Matlab,  but...  Matlab should be capable of doing something like this:

       if ( Data(i,j) >= -50  AND  Data(i,j) <= 50 )
           Data(i,j) = 0;


RE: Compare and replace elements in matrix

DanTex is correct.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


eBook - Manufacturing the Cars of Tomorrow
In this ebook, we'll explore how additive manufacturing is going to transform the way cars are made. This includes commentary from thought leaders such as Ford's CTO, Ken Washington, Customer case studies of ways 3D printing is being used today, and a variety of part examples where 3D printing is already impacting how automobiles are made. Download Now
White Paper - Smart Manufacturing for Semiconductor
New technologies and approaches present great opportunities for semiconductor manufacturers to achieve high levels of innovation, yield and improvement. This white paper explores some of these cutting-edge technologies and how they can be applied effectively in the semiconductor industry. Read about how Smart Manufacturing is transforming the semiconductor industry. Download Now
White Paper - Analysis and Simulation in Aircraft Structure Certification
Organizations using simulation and analysis tools effectively see the benefits in their ability to achieve certification faster and with drastically less total cost than those who do not maximize these tools. Read this White Paper to learn about how digital tools such as analysis and simulation help in aircraft structure certification. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close