×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Jobs

Find corresponding X value for maximum Y

Find corresponding X value for maximum Y

Find corresponding X value for maximum Y

(OP)
If I have

x:=1,2..4

y:=x+1

x=1,2,3,4
y=2,3,4,5

I can do max(y), but how do I get it to return what x causes the max?

I cannot do differentiation because I have a more complex equation with absolute value and thus is discontinuous.

Thanks

RE: Find corresponding X value for maximum Y

If x and y are both vectors you can use:

lookup(max(y),y,x)

Peter
 

RE: Find corresponding X value for maximum Y

(OP)
excellent..thanks

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!


Resources