Features

The following list shows you the most important features of DataLab:

Data Processing

• various methods to import and export data
• support of nominal, ordinal and interval measurement scales
• built-in numerical data editor
• name generator
• sorting and mixing of data
• support of missing data
• matrix clipboard allows flexible reorganisation of data
• curve digitizer allows to convert printed diagrams into digital data
• automation of the analysis by programmability

Math and Statistics

• a built-in math calculator can be used to transform the measured data
• univariate descriptors and frequency tables
• a rich set of options for scaling the data
• statistical tests (t-test, ANOVA, F-test, Kolmogorov-Smirnov, Dean-Dixon, correlation test, etc.)
• linear regression (straight line, polynomial, hyperbola, logarithmic, etc.)
• cross correlation table
• multiple linear regression
• selection of variables
• detection of multicollinearities
• ridge regression
• principal component analysis (PCA)
• principal component regression (PCR)
• partial least squares regression (PLS)
• linear discriminant analysis (LDA)
• PLS discriminant analysis (PLS-DA)
• random forests
• self organizing map (SOM, Kohonen map)
• KNN modelling (memory based learner)
• hierarchical clustering (dendrograms)
• kMeans and fuzzy cMeans clustering
• random number generator with configurable distribution of random numbers
• Fast Fourier Transformation
• filter and smoothing
• time series visualization and analysis

Visualisation of Data

• displayed windows are freely configurable in size and colors
• a large number of chart types: point plots, line plots, spectra, x-y plots, contour lines, principal components, histograms, Pareto charts, table survey, etc.
• scatter plots allow to recognize relationships among variables
• color maps to visualize three-dimensional relationships
• data can be labeled by additional class information
• zoom and pan of data
• the axes and the titles of the graphs as well as single data items can be labeled almost arbitrarily
• on-screen 3D-rotation of data

Varia

• update function to obtain free updates automatically
• Scriptsprache (DLabPascal) zur Automatisierung von Analysen
• control of DataLab features by external programs
• each data set can be accompanied by an HTML based comment of any length