UV-CDAT Utilities Manual Table of Contents

CHAPTER 1 Climate Data Specific Utilities: The cdutil Package

• Spatial Averaging, Area weighting, domain definition
  • Spatial averaging using the averager function
  • Computing Weights using area_weights.
  • Defining precise domains:
• Temporal Averaging
  • Predefined time averaging functions
  • Creating Custom Seasons
  • Specifying time periods for climatologies.
  • Specifying Data Coverage Criteria
• Preparing Datasets for Comparison (VariableConditioner and VariablesMatcher)
  • Introduction.
  • Description of supporting objects.
  • Examples

CHAPTER 2 General Utilities : The genutil Package

• Statistics Functions
  • correlation
  • covariance
  • autocorrelation
  • autocovariance
  • laggedcorrelation
  • laggedcovariance
  • meanabsdiff
  • rms
  • std
  • variance
  • geometricmean
  • percentiles
  • median
  • linearregression
• The xmgrace module
• Additional convenience functions
  • minmax
  • grower
  • rgb2str
  • str2rgb

CHAPTER 3 User Contributed Packages

• Reading ASCII text files (package asciidata)
• Reading binary data (package binaryio)
• Explicit Orthonormal Functions (package eof)
• Computing L-moments (package lmoments)
• Regridding using package regridpack
• Using Spherepack (package sphere)
• Computing Trends (package trends)
• Reading data from an Oort file (package ort)
• A grads like interface (package grads)
• Interface to the ngmath library. (package ngmath)