DataAnalysis (iPad) and DataAnalysisLite (iPhone) are general purpose Apps for the plotting and fitting of all types of data that can be formulated as x, y pairs. These programs can be used easily by both students and professionals. It is particularly useful for quick analyses of various types of data by curve fitting, value prediction, and analysis of kinetic data including radioactive decay and enzyme kinetics.
Data can be entered directly via the keyboard or imported from the Mail App as a text file (.txt), or a comma separated value file (.csv). Data files in txt, csv and native formats can be imported directly from Dropbox and Google Drive.
After data entry the user has the option to average, baseline correct, and/or normalize the data before plotting and fitting.
Plotting of the data is as simple as pressing the Plot button. The axes are autoscaled and the graph is immediately ready to add to a document or presentation. The user has a variety of options to customize the graph by altering the axes color, axes labels, graph title, and changing the the size and color of the symbols.
The data can be fit to a variety of mathematical equations by non-linear regression including simple functions such as linear, 2nd and 3th order polynomials, power, exponential, and log functions (DataAnalysis only).
Data can also be fit to more complex equations for such processes as radioactive decay, enzyme kinetics, 1st and 2nd order chemical reactions, as well as the gaussian function. The fit can be overlaid on the data with different line widths, line types and thicknesses as well as various colors.
The program output, graphics and text, can be copied, emailed, or uploaded to Dropbox or GoogleDrive in a variety of formats including PDF and TXT. The graphics in PDF format can be edited with programs like Adobe Illustrator™ as objects.
DataAnalysis has a built web-based User's Guide available via the Help Menu.