Data visualization with SAS programming

How to create control chart for more than one observation at the same point in the plot and multiple group.

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How to create control chart for more than one observation at the same point in the plot and multiple group.

Hi All,

I want to create control chart for  data set contain study id, group by,milestone date, and duration between milestone

process a study. As you can see from the data below, several studies get released on the same day. As a result, several

observations could fall on the same point in the plot when plotting the data.

In CONTROL CHART Required:

on x-axis: milestone date

on y-axis: duration between milestone

point label: Study id

group by different set of control limit (UCL, MEAN, LCL)

for example:

Study IdGroup_Bymilestone_dateduration
A01A01/20/2011258
A02A 01/20/201175
A03A 3/21/2011128
A03A 6/18/2011141
---- - ---  - - - - - - - - - -- - - - - -
A01P 04/20/2011159
A0205/14/2011148

How to create control chart for different set of control limit by groupby

required  polt  with symol dot joining by line  with phase reference and phase break

Size of observation range from 0 to max

Which method to choose? is this proc shewhart or other?

I am using SAS 9.2

I tried Proc Shewhart  irchart showing error like unique subgroup, so on

Any help would be gretly appreciated.

Thanks,

rsearch

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