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Evaluation of Graphics Packages for PCs

Data Transformation Functions

Feature Stanford Graphics DeltaGraph Origin Sigmaplot
Work sheet operations        
Logical operators Yes Yes Yes Yes
Recoding functions Yes Yes Yes Yes
Data sorting        
Ascending/Descending order Descending Both Both Both
Swap rows / columns Yes Yes Yes Yes
Mathematical functions        
Algebraic formulae Yes Yes Yes Yes
Trigonometric functions Yes Yes Yes Yes
Inverse trigonometric functions Yes Yes Yes Yes
Hyperbolic trigonometric functions Yes Yes Yes Yes
Natural logarithms Yes Yes Yes Yes
Base 10 logarithms Yes Yes Yes Yes
Factorials Yes No No Yes
Error functions Yes No Yes No
Gamma functions Yes No Yes No
Bessel functions Yes No Yes No
Random generator Yes No Yes Yes
Multiparameter functions No No Yes Yes
Statistical functions Yes Yes Yes Yes
Calculus functions No No Yes No
Histogram functions No Yes Yes Yes
Data-smoothing functions        
Uniform No Yes Yes No
FFT No No Yes Yes
Other methods of smoothing No No Yes Yes
Re-gridding of 3-d data        
Number of methods 1 None 2 1
Adjustable parameters Yes No Yes Yes