software for data presentation, statistical analysis, marketing and prediction.

Free download:
LeoStatistic.zip or
(selfextracting winzip file)


  • Introduction
  • Data
  • Statistics
  • Results presentation
  • Samples
  • Popular statistics and data analysis
  • Extrapolation and interpolation.

    A "Calculator" tab of the control panel

    Calculator controls

    permits to calculate interpolated or extrapolated values for the active statistical scheme and formulas.

    Typed into "Argument(s)" edit control numerical values of arguments (if their have to be more then one for any particular scheme do separate them with space or comma letters). Push button "Ok" or press Enter key to calculate extrapolated or interpolated values for the active statistical scheme. For example for the curve fitting the value(s) on the theoretical curve(s) for the impute argument all values visible curves will be calculated.

    Note that only difference between interpolation and extrapolation is that first calculation is made for arguments inside of area covered with experimental data and extrapolation for outside range of tested values and meant to be used for prediction. As a matter of calculation procedures both of them absolute equivalent..

    In case if mistakenly input of non-corresponding to the formula number of arguments the corresponding "mistake message" will appear instead of numerical result.

    LeoStatistic software application can calculate extrapolation also for series of theoretical values for arguments that has to be presented in the text (ANSI) file, one record per line with parameters divided by separator letters) (in the same format as used for import data).

    To calculate series of theoretical values user at first has to create a file that contains arguments and then press button "Browse" associated with edit control "From file" to select it in the operation system of the computer.  In the appeared dialog box to chose exact number fields as number of arguments as is in existing statistical scheme and press button "Ok" or  keyboard "Enter" key. LeoStatistic will calculate theoretical values for each statistical scheme (formula) and write them in the output text file that must be selected in se same manner as input one. . The name of the output file can be edited in the "To file" edit box. Initially LeoStatistic software application will offer to create an output file with the name repeating of input file plus "_Res" before ",txt" extension. For example for "myFile.txt" default output name is "myFile_Res.txt".

    A result file will copy a content of input file plus add one field of extrapolated values. In case of more then one statistical scheme (theoretical curves for the case of one argument for example) this will be repeated for each curve.

    Data modeling.

    There is also an option to sort of the results in the ascending (descending) order. One of the possible usage of this option is a data modeling for finding most statistically promising objects.

    For example for the market research the problem can be formulated to find most prospective customers on the base behavior of the existing. Let's presume that we have an file that contains information about customers like their age, gender, income, family size considered as arguments and value of their spending on our products. Importing this file to the LeoStatistic we probably will find a pronounced correlation between all o some of parameters of customers and their spending level.

    If we have also a file contains a analogues information about potential customers. Using described above procedure we will obtaining file potential customers ranged by their potential willing to spend more money baying our product.

    Other approach to this marketing problem is described in the page marketing.

    Screenshots of the LeoStatistic software:
    click on picture to enlarge

    Building histograms
    Building histogram

    Distribution of two variables.
    Distribution of two variables.

    Approximation (constructor style interface).
    (constructor style interface).

    3D view.
    3D view.

    DOW trend.
    DOW trend.

    Signals revealing
    Signals revealing.

    Near neighbors method
    Near neighbors method.

    Harmonic analysis.
    Harmonic analysis.

    Fit with free format formula.
    Fit with free format formula.

    Curve fit of crystal growth rate.
    Curve fit of crystal growth rate.

    Get data from image file.
    Get data from image file.

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