×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Data Analysis querry

Data Analysis querry

Data Analysis querry

(OP)
Hello

I have a set of data which I download as a two column data array into MathCad 2001i and typically 1000 rows. The data is the change in mass (y) as a function of time (x)

I would like to complete a running calculation of the slope of my data using around five data points at a time i.e. start at i:=0 to i:=5, calculate slope from data points in that range of data and then start at i:=1 to i:=6 etc until the full 1000 data points have been analysed.

Would anyone know the best method of doing this in MathCad? I have been playing around with the programming part of MathCad (while and if loops) but am not sure if there is a simpler method

Many thanks

RE: Data Analysis querry

i:0;1000

acc[i:0

i:2;998

acc[i:(y[(i+2)-y[(i-2))/(x[(i+2)-x[(i-2)))




Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

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



News


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