Math/Data Graphing Question

RossCo_

Active Member
Joined
Sep 27, 2011
Messages
68
Reaction score
0
Location
Durban
So firstly forgive me for the probable poor explanation.

I am trying to figure out the best way to graph or display a range of data and have myself in quiet a twist. And would love to use some collective minds to help me get to the desired results.

I have a range of Data over 5000 records

First column is Date and time, Its the time stamp of polled every 10 minutes.

On each of these lines I have a numerical value in the range from -3.5 to 19.2

Here is an extract

Aug 24th 05:56:00 9,56
Aug 24th 06:11:00 9,58
Aug 24th 06:41:00 10,15
Aug 24th 06:56:00 8,78
Aug 24th 07:11:00 9,71
Aug 24th 07:26:00 9,55
Aug 24th 07:41:00 9,51
Aug 24th 07:56:00 10,40
Aug 24th 08:11:00 10,51


I can put this onto a line graph and see the trend easily.

What I am trying to find out is between what Numerical values over the given time period of the 5000 records that we see the values change the most with the margin of 3 units.

To give an example, I want to find out that these records jumped between 10 and 13 more then they did between 1 and 4.

I need to either represent this in a graph or table format.
 
It sounds as though you want a scatter plot of your vector of values on X against the delta of your vector (each element is a difference measure wrt one or more adjacent values) on Y. The shape of the cloud should give you the answers you need.

In R, it would be something like
Code:
plot(x[1:(length(x)-1)],diff(x),pch='.')
 
Last edited:
Top
Sign up to the MyBroadband newsletter
X