Difference, cumulative sum, lag, and lead all made sense and I understand the calculation as well as the SPSS set-up. What I don't understand is why we would want to look at any of that data. Difference and lag would be interesting to see but how is it helpful in analysis?
I understand we are looking at repeated measures of samples to calculate symptoms from week to week, I like the use of the sum series to see the line graph in terms of analysis.
Can you help out with piecewise regression analysis with interrupted time series. This is to see the effect of administration of medication in progression of disease over time. Thanks.
Can I run a time series using ordinal level variables? If I have a time variable of year (40 years) and want to measure changes in education of a rare population over time, can that be done with ordinal level data? I have 1980 cases of year and 840 cases of the education variable.
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Difference, cumulative sum, lag, and lead all made sense and I understand the calculation as well as the SPSS set-up. What I don't understand is why we would want to look at any of that data. Difference and lag would be interesting to see but how is it helpful in analysis?
I understand we are looking at repeated measures of samples to calculate symptoms from week to week, I like the use of the sum series to see the line graph in terms of analysis.
This video was a good overview, however, I am a bit confused as to when exactly I would utilize the lag and lead tools.
+Ashley Kilpatrick Agreed what is the purpose of lag and lead?
This is helpful to see changes over a period of time
Thank you, Dr Grande !
Can you help out with piecewise regression analysis with interrupted time series. This is to see the effect of administration of medication in progression of disease over time. Thanks.
Grande!
So I understand lag and lead go in the opposite direction but what is the purpose of both?
Can I run a time series using ordinal level variables? If I have a time variable of year (40 years) and want to measure changes in education of a rare population over time, can that be done with ordinal level data? I have 1980 cases of year and 840 cases of the education variable.
How do I calculate lag and also difference if the variable is in time format?
How to define date for time series analysis if it is daily rainfall data of 4 years
can you please do a tutorial for forecasting using spss version 20
This video was confusing. How about doing a video with better instruction. I am more confused by the video than If I would have not watched it.