home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
PC World Komputer 1997 February
/
PCWK0297.iso
/
technika
/
kurvplus
/
vendor.doc
< prev
Wrap
Text File
|
1994-05-02
|
2KB
|
37 lines
KURV+ for WINDOWS, Version 4.0, is a statistical analysis program
containing three statistical modules and a graph builder module:
CURVE FITTING
X,Y data points are processed to determine the coefficients for 28
equations (including 3rd, 4th, and 5th order polynominals). Comparisions of
calculated points with actual data points are instantly available. The user
can also forecasts results for points beyond the range of the actual data.
Both the comparisons and the forecasts can be displayed as line graphs or
as tables.
MULTIPLE LINEAR REGRESSION
The dependent variable, Y, is predicted in terms of two, three, or four
independent variables or predictors (X1, X2, X3, X4). KURV+ calculates the
least-squares coefficients for a linear equation of the form Y = b0 + b1*X1
+ b2*X2 + b3*X3 + b4*X4. The user may also forecast results using the
calculated coefficients. These forecasts can be displayed as line graphs or
as tables.
FUNDAMENTAL STATISTICS
The mean, variance, and standard deviation are calculated from any sample
set. The samples may be either grouped or ungrouped. Grouped samples may
then be displayed as scatter graphs.
GRAPH BUILDER (new to version 4.0)
Users can create their own graphs, independent of the other modules. Graph
style, colors, font style, line style, and grid type may be easily changed
from the options menu. The user can also add a graph title, legend, and
axis text. The mean for the data may also be displayed.
A data editor is provided in each module to allow the user to either
manually enter data or to import previously saved data (comma delimited
and space delimited ASCII files are supported). Graphs and tables
generated by KURV+ may be directly printed or copied to the Windows
clipboard.