Data management

• data sheet with 1,048,576 rows by 1024 columns
• WYSIWYG data sheet preview
• full data block-editing options: cut, copy, paste, delete, clear, insert, and undo
• data format conversion: hex, oct, bin, and decimal
• supporting numbers, ASCII text, date, time
• automatic data generation: random (uniform, Gaussian, binomial, Poisson, and exponential), algebraic, geometric, and user-defined functions
• text editing window for calculated results and reports
• IEEE numerics
• handling of missing data
• data sieving (user defined step size), ranking (ascending or descending), sorting, normalizing (five methods), differencing, combining, splitting, summation, and frequency counting
• multiple levels sorting
• math transforms for multiple equations and variables
• weightd average
• eight step-by-step tutorial lessons for quick start
• built-in calculator
• user-defined hot keys

Data import and export

• import: ASCII, Lotus, dBase, DIF, Excel, CSV, Access, Wave, and Quattro Pro
• export: ASCII, Lotus, dBase, DIF, and Excel
• export to ASCII with user specified precision
• drag-and-drop with automatic file type detection

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Descriptive statistics

• sum of samples, sum of absolute, sum of squares, arithmetic mean, quadraric mean, harmonic mean, absolute mean, variance, standard deviation, absolute deviation, standard error, coefficient of variance, skewness, coefficient of skewness, index of kurtosis, coefficient of kurtosis
• percentiles: 10th, 25th, 50th 75th and 90th percentiles
• quartiles
• 95% confidence interval, 99% confidence interval

Data testing

• t-test: one and two samples; paired and unpaired
• multiple t-test
• F-test
• nonparametric: sign, goodness of fit, Poisson, binomial, Wilcoxon rank sum, Wilcoxon sign rank, Friedman, Kruskal-Wallis, Mann-Whitney, Wald-Wolfowitz, Lilliefors, chi-sq,and Kolmogorov-Smirnov
• Kaplan-Meier survival and hazard estimates

Analysis

• factor analysis with four rotating methods: varimax, quartimax, equamax, and parsimax
• principal component analysis with four rotating methods
• cluster analysis: k-means cluster and and hierarchical cluster
• discriminant analysis
• correspondence analysis
• canonical analysis

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Tables

• frequency table
• McNemar
• Fisher
• contingency table

Macro

• record and play user-define macro for data editing and analysis procedures

Math transformation

• user-defined functions: any combination of predefined functions using ‘ +, -, *, /, ^ ’ operators
• transformation model up to 50 equations
• simple one-line transformation

FFT and Fourier transform

• FFT and discrete Fourier transform
• forward and inverse transformation
• real or complex FFT and Fourier transform
• data convolution

Regression analysis

Predefined regressions

• linear regression
• multiple linear regression
• cubic spline regression
• polynomial regression
• Over 100 predefined regression models
• comparison of two regression results
• stepwised multiple regression
• multiple regression
• logistic regression
• Weibull analysis for failure rate
• curve fitting graphically

User-defined regression

• user-defined: nonlinear model with up to 50 equations
• three robust fitting methods: Levenberg-Marquardt, Powell, and simplex
• user-specified weighting factors: global or local weighting factors
• user-specified data ranges
• comparison of two linear regression results
• parameter statistics: covariance matrix, standard error, standard deviation, goodness-of-fit statistics, and confidence and prediction intervals

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ANOVA

• one-way: with or without repeated measurements
• two-way: with or without replication
• three-way factorial
• multiple comparison: Fisher, Bonferroni,Scheffe, Tukey, SNK, Duncan, Dunnett, and nonparametric
• ANCOVA
• one- and two-way MANOVA

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Correlation

• Pearson, Spearman, Kendall, partial, multiple, serial, canonical

Time series

• index number
• autocorrelation and partial autocorrelation
• trend removal: mean, linear, power, exponential, and polynomial
• smoothing and forecasting: simple moving average, weighted moving average, exponential, spline
• simple and seasonal difference
• seasonal decomposition
• periodogram
• data tapering: Barlett and Von Hann

Dose-response analysis

• logit and probit models for any probability level of LD/LC (such as LD50/LC50, LD75/LC75, ...) with confidence intervals
• four- and three-parameter sigmoidal models for EC50/IC50/DC50/GI50

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Quality control and process control

• Pareto analysis
• quality control for measurements and attributes with user-controllable sigma count
• QC chart for measurements without subgroup: X Chart (R), X Chart (s), Moving Range, and Moving Average
• QC chart for measurements with subgroup: R-Chart, S-Chart, X Bar Chart, and S-sq Chart
• QCchart for attributes: P-Chart, NP-Chart, C Chart, U-Sq Chart
• process capability analysis: Cpk, Cp, Cm, Cr, Zu, Zl, and Zmin

Distribution

• critical value to (or from) tail probability conversion for commonly used distributions: normal, Student-t, F, chi-sq, exponential, Poisson, and binomial
• fitting sample data to 10 predefined distributions
• automatic creation of density-function data

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Predefined math functions

• ABS(x): Absolute value
• ACOS(x): Inverse of trigonometric cosine
• ACOSH(x): Inverse of hyperbolic cosine
• ALOGIT(x): Inverse of logit
• ALOGIT100(x): Inverse of logit100
• ASIN(x): Inverse of trigonometric sine
• ASINH(x): Inverse of hyperbolic sine
• ATAN(x): Inverse of trigonometric tangent
• ATAN2(x,y): Arc tangent of y/x
• ATANH(x): Inverse of hyperbolic tangent
• BETA(x,y): Beta function
• BINOMIAL(n,m): Binomila coefficient of (n,m)
• CEIL(x): Smallest integer not less than x
• COS(x): Trigonometric cosine
• COSH(x): Hyperbolic cosine
• DEGREE(x): Convert radians to degrees
• EXP(x): Natural exponential
• ERR(x): Error function
• ERRC(x): Complementary error function 1-ERR
• EXP(x): Natural exponential
• FACTORIAL(x): Factorial function
• FLOOR(x): Largest integer not greater than x
• GAMMA(x): Gamma function
• GAMMAP(x,y): Imcomplete gamma function
• GAMMAQ(x,y): 1-GAMMAP(x,y)
• GAUSSIAN(x): Gauss Distribution
• LN(x): Natural logarithmic
• LOG(x): Natural logarithmic
• LOG10(x): Common (Base 10) logarithmic
• LOGIT(x): Unit based logit
• LOGIT100(x): 100 based logit
• MAX(x,y): Larger value of x and y
• MIN(x,y): Smaller value of x and y
• MOD(x,y): Remainder f of x/y if x=a*y+f
• NORMDEV(x): Derivative of integrated normal distribution
• NORMINT(x): Integration of normal distribution
• POW10(x): Base 10 exponential
• POW10(x): Base 10 exponential
• POWER(x,y): x to the power of y
• PROBIT(x): Probit(x)=NormDev(x)+5
• RADIAN(x): Convert degrees to radians
• RANDOM(x): Random number between 0 and x-1
• ROUND(x): Convert real to the nearest integer
• SIGN(x): Sign of a number (1,0,-1)
• SIN(x): Trigonometric sine
• SINH(x): Hyperbolic sine
• SQR(x): Square function
• SQRT(x): Square root function
• TAN(x): Trigonometric tangent
• TANH(x): Hyperbolic tangent
• TRUNC(x): Convert real to an integer toward zero
• UNIT(x): If x>=0 then 1 else 0

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• well-written users' handbook over 380 pages
• superior tutorial lessons with step-by-step instruction
• online help system

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