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  1. spc2941

    new laptop using Windows98SE

    couple of questions. if i were to do this, would i format the hard drive as fat32 or ntfs, would i need to do a partition? I believe virtual PC is not compatable with XP home edition, but I'm not sure.. has anyone tried it with home edition instead of pro?
  2. spc2941

    new laptop using Windows98SE

    hi all, i have a dell D830 notebook. it is a new computer, but i need to install windows 98 SE on it. The reason is that i have a program that only runs on windows 98. I've tried XP's compatible program, but it doesn't work. I get a runtime error 91. When i install windows 98 SE, the...
  3. spc2941

    moving average with date range

    Here is an example of my dataset. product date basis apple may20 4 orange march2 3 apple april 3 banana jan31 33 apple feb13 88 apple dec2 12 what i need is a running moving average of the last 90 days of by "product" based on...
  4. spc2941

    moving average with date range

    this doesn't work either. data new; set old; by id; retain basis; if date+90 then avg = mean(basis); run;
  5. spc2941

    moving average with date range

    Hello all, I'm new to SAS, and I am having some issues with calculating moving average based on dates and groupings within the dataset. Basically, I am trying to calculate the moving average for each observation based on the last 90 days. Each observation has a date. I also need to group...

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