1. Weekly Progress MAGGIE 8 th March 2006

2. Overview I am currently working on a software in java which provides graphical analysis of PingER historical data. I am currently working on a software in java which provides graphical analysis of PingER historical data. Currently it is graphing RTT, Packet Loss, Throughput from various monitoring sites (CERN, Stanford etc) to the world. Currently it is graphing RTT, Packet Loss, Throughput from various monitoring sites (CERN, Stanford etc) to the world. The various analyses it provides include: The various analyses it provides include: –Bar Charts of average values. –Line Charts of values overtime. –Trendlines or Exponential Regression Analysis plots.

3. Overview

4. Current Tasks Currently the analysis most important for SLAC is the exponential regression of historical data. Currently the analysis most important for SLAC is the exponential regression of historical data. This means that we need to fit the historical data for a country/region to an equation of the form This means that we need to fit the historical data for a country/region to an equation of the form  Y = a * e x

5. Current tasks

6. Current Tasks I am currently working on some improvements suggested by SLAC including: I am currently working on some improvements suggested by SLAC including: –Logarithmic Y-axis –Residuals of the exponential regression fitting with each series. –Options of showing the actual data points with each trendline. –Patterns instead of colors for the trendlines

7. Logarithmic Axis This has been completed This has been completed

8. Fitness of Curve (residuals) I have modified my regression class to calculate the residuals. I have modified my regression class to calculate the residuals. Currently working to enable the plotter class to pick up these items from regression class to display as tooltips with the trendlines. Currently working to enable the plotter class to pick up these items from regression class to display as tooltips with the trendlines.

9. Data Points with trendlines I have added a second y-axis which will be used to simultaneously show the actual data points. I have added a second y-axis which will be used to simultaneously show the actual data points. Also directed a query to SLAC to ask whether they need to show the data on a linear or logarithmic axis. Also directed a query to SLAC to ask whether they need to show the data on a linear or logarithmic axis.

10. Patterns instead of colors I have found a function which gives me access to a Stroke object for drawing the lines. I have found a function which gives me access to a Stroke object for drawing the lines. I am using it to vary the patterns used to create the lines. I am using it to vary the patterns used to create the lines. This is important to use the software for creation of charts used in reports and papers. This is important to use the software for creation of charts used in reports and papers.

11. THANKYOU