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CRDSS <br />TASK MEMORANDUM 2.11-1 <br />Analysis System and System Integration <br />Analysis System and System Integration Year 2 Efforts <br />1.0 ISSUE <br />This task memorandum describes the analysis system and system integration efforts for Year 2 of <br />CRDSS. <br />2.0 DISCUSSION/ANALYSIS <br />The Year 2 effort was broken into several subtasks which are summarized below. <br />Subtask 1. Develop a toolbox for analyzing time series output. <br />crdssgr <br />Initially, it was thought that the Year 1 product that was developed to implement the preliminary <br />crdssgr <br />database interface could be used for the time series tool. However, it became clear that would <br />need to be re-written to take advantage of Year 2 coding efforts (time series library, StateMod library, <br />crdssgr <br />DMI library). Therefore, was slated for non-maintenance and appropriate code was incorporated <br />tstool <br />into a new tool called . Additionally, because the data management utilities evolved to be very <br />tstool tstool <br />StateMod-specific, they have not been hooked into . is a graphical user interface (GUI) that <br />interfaces with the time series library which has functions for many time series operations (e.g., adding, <br />tstool <br />subtracting, regression). The CRDSS Users? Manual contains the documentation and the CRDSS <br />tstool <br />Developers? Manual contains the time series library documentation. Many of the functions of <br />have been adapted to the database/web interface. <br />tstool <br /> has been implemented as a generic tool that currently can read structure and station information <br />from the CRDSS database and StateMod time series input files and list whether daily and monthly time <br />series are available. Time series can be read either from the CRDSS database or StateMod input time <br />series files. The user can compose a list of time series expressions. Each expression can be a simple <br />time series identifier or an expression involving time series. The list of expressions is then used to <br />retrieve and process time series to give graphical and tabular output. Data stations are displayed on a <br />map and can be selected from the map. The output period of record can be specified. Output formats <br />include: <br />? <br />StateMod input file format <br />? <br />Spreadsheet (delimited) format <br />? <br />X-Y line graph <br />? <br />Bar and stacked bar graph <br />? <br />Running average graph, including a centered running average and an N-year running average (there <br />was some confusion about what was required by the scope, therefore both were implemented) <br />1 <br />a320/taskmems/ 2-11-01.doc 01/03/97 <br />