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AnClim software

• General characteristics
  • A comprehensive tool for processing monthly time series (from transformations through quality control and homogenization to time series analysis)
  • Works under Windows 95/98/NT/ME/2000/XP
  • User friendly: a lot of graphical components, graphs clarifying the results, etc.
  • Continuous development from 1995

• Brief technical description
  • Input format: TXT files, monthly or daily data
  • Working with one station at a time, but automated processing of many stations is enabled as well
  • Working with series: plotting graphs, finding outliers, calculating statistical characteristics, various tests (the most commonly used during time series analysis)
  • Working with two series: merging two series (using differences, ratios/log ratios)
  • Menu is ordered in a sequence (steps) to be taken during data processing: viewing data, adjusting data (transformations), normal distribution testing, finding outliers/extremes, homogeneity testing (both absolute and relative homogeneity tests), times series analysis: trends, cyclicity, filtering output data
  • Managing the software: by means of "Series Controller" (form in the right bottom corner: info about period, length of series, number of missing values, option for switching between monthly data or seasonal and annual averages/sums/extremes)
  • Settings the software: in menu Options / Settings, documentation can be found under menu Help / Documentation

• Functionality description
  • Series overview:
    • basic statistical characteristics, tests of randomness, outliers detection etc.
    • normal distribution testing, histograms
    • graphs of the series
  • Regression models:
    • linear, polynomial regression
    • multivariate linear regression
  • Adjusting data:
    • replacing outliers, filling missing values, etc.
    • various transformations, converting series into anomalies from a mean, etc.
    • calculating differences/ratios of two series
    • switching between monthly or seasonal and annual averages
  • Homogeneity testing:
    • absolute homogeneity tests
    • relative homogeneity tests ( Alexandersson‘s SNHT - various modifications, Bivariate test of Maronna and Yohai, Easterling‘s and Peterson‘s test, Vincent‘s MLR, and others ), creating reference series
    • adjustment of inhomogeneities
  • Time series analysis:
    • one series analysis (autocorrelations, power spectrum - MESA, dynamic MESA, etc.)
    • two series analysis (coherency analysis, etc.)
    • filtering the series (low-pass, band-pass, high-pass filters)
  • Database tools:
    • data can be downloaded from central database straight to AnClim by means of LoadData software ("Download Wizard"). You just specify what to download, the rest is done by the software - converting data to a format suitable for AnClim, etc.
  • Automation:
    • functions for automatized processing of selected functions (tests) for up to 1000 files (stations)
    
    
  List of available statistical tests

• Examples
  • Homogenization Tools
    
    
  • Time Series Analysis
    
    
  • Automation
    

• Documentation
  • Documentation for the AnClim software in English, in Spanish .
    (Actual documentation can be found under Help menu of each software)
  
  

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The downloaded version of the software expires after some time. One of the reasons is that I improve the software all the time and I want the users to work with the latest versions.

Reference to be used in publications: Stepanek, P. (2007): AnClim - software for time series analysis (for Windows). Dept. of Geography, Fac. of Natural Sciences, Masaryk University, Brno. 1.47 MB.