On Thu, Nov 5, 2009 at 9:46 PM, Charles R Harris <charlesr.har...@gmail.com>wrote:
> > > On Thu, Nov 5, 2009 at 7:21 PM, Gökhan Sever <gokhanse...@gmail.com>wrote: > >> Hello, >> >> I have two aircraft based aerosol measurements. The first one is >> dccnConSTP (blue), and the latter is CPCConc (red) as shown in this screen >> capture. (http://img513.imageshack.us/img513/7498/ccncpclag.png). My goal >> is to compare these two measurements. It is expected to see that they must >> have a positive correlation throughout the flight. However, the instrument >> that gives CPCConc was experiencing a sampling issue and therefore making a >> varying time-shifted measurements with respect to the first instrument. >> (From the first box it is about 20 seconds, 24 from the seconds before the >> dccnConSTP measurements shows up.) In other words in different altitude >> levels, I have varying time differences in between these two measurements in >> terms of their shapes. So, my goal turns to addressing this variable >> shifting issue before I start doing the comparisons. >> >> Is there a known automated approach to correct this mentioned varying-lag >> issue? If so, how? >> >> > Can you be more explicit about the varying lags? Do you know what the lags > are? If not, how much information about them, such as range, probability, > etc., can you supply? Are there dropouts, or do the lags varying sort of > continuously? Can you parameterise the lags, so on and so forth. > > What does a straight forward scatter plot look like? Chuck
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