× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
This topic contains 1 attachment.
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
micro micro
wrote...
Posts: 170
Rep: 2 0
9 years ago
Hi Guys, I've got a test which I'd like to run but not sure which type is adequate. I have a set of curved graphs which I'd like to check for overlap i.e. autocorrelation between such curves. I've tried using the residual values with the Durbin-Watson but not sure if this is the right test since I got a great significant value which I believe is too good for the data.
Read 1527 times
4 Replies

Related Topics

Replies
wrote...
#1
Educator
9 years ago
What's the relationship between your independent and dependant variables (linear, exponential, etc.)?

If you're going to do the Durbin-Watson, follow this:
 Attached file 
(90.81 KB)
You must login or register to gain access to this attachment.
micro Author
wrote...
#2
9 years ago
Independent. I'm plotting light intensity vs. distance and the light intensity is arbitrary i.e. not of interest in fact I can standardize and change the Y axis into a binary (0 and 1) so I get peak or no peak on the Y-axis with a change in distance.
wrote...
#3
Educator
9 years ago
That would be cool, never seen that done before (binary style). I've never compared graphs by superimposing them on one another, so I can't give you any valuable pointers. What I usually do is look for trends, find their line/curve of best fit and use that for comparison sake.
wrote...
#4
Valued Member
9 years ago Edited: 9 years ago, ortho2122
I probably don't understand the experiment completely. Light intensity is related to the inverse square of distance from the source. What exactly are your response and input variables?


Assuming that the Durbin-Watson finding is real, then I'd be looking for an explanation of why the residuals are so strongly correlated. If the correlation is spurious, I'd still want to be able to explain why it isn't real.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1267 People Browsing
 122 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Related Images
  
 164
  
 243
  
 745
Your Opinion
What's your favorite coffee beverage?
Votes: 274
Previous poll results: Where do you get your textbooks?