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statiswak
Fluorite | Level 6

Hello,

I need to find the time period (3 month increments; Jan-Mar, Feb-Apr, etc.) where the majority of my data points (rates) are. The dataset extends 2 years. Would it be best to create a graph/visualization such as a scatterplot? Or use a proc freq statement on the dates? Any help would be greatly appreciated.

1 ACCEPTED SOLUTION

Accepted Solutions
ballardw
Super User

If you have a date associated with the measures then 1) make sure it is a SAS date value (NOT character or numeric like 20180120 that only looks date-like) and 2) use a format like YYQ6. for the variable.

Then procs like Freq will group the variables into calendar quarters and display the value like 2017Q1 (first quarter of 2017)

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4 REPLIES 4
PaigeMiller
Diamond | Level 26

"majority of data points" might mean something different to me than it means to you

 

Nevertheless, I can think of two approaches

  1. Histograms (bar charts) of the data
  2. Run PROC UNIVARIATE and use the MODE that is computed (MODE is the value occurs the most)
--
Paige Miller
statiswak
Fluorite | Level 6

Thank you!

ballardw
Super User

If you have a date associated with the measures then 1) make sure it is a SAS date value (NOT character or numeric like 20180120 that only looks date-like) and 2) use a format like YYQ6. for the variable.

Then procs like Freq will group the variables into calendar quarters and display the value like 2017Q1 (first quarter of 2017)

statiswak
Fluorite | Level 6

Thank you. The proc freq did the trick. I did a cross-tabulation, so I could see the frequency of the ID's by date and quarter.

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