Introduction

Please select an option from the pull-down menu above.

Text data editor

Cut-and-paste text or edit data here

Convert commas to spaces (1,2,0,3 yields 1 2 0 3) Use comma as decimal separator (1,203 = 1.203) Remove commas from text (1,2,0,3 yields 1203)

Standard Unweighted Fitting: no weights required Weighted Fitting: each data point requires a weight

This data is provided as an example, cut and paste as needed to model your data. All lines of text that do not begin with a number are ignored. Weighted fitting requires an additional number to be used as a weight when fitting. The site does not calculate any weights, which are used as: error = weight * (predicted - actual) You must provide any weights you wish to use. X Y Z 3.017 2.175 0.320 2.822 2.624 0.629 2.632 2.839 0.950 2.287 3.030 1.574 2.207 3.057 1.725 2.048 3.098 2.035 1.963 3.115 2.204 1.784 3.144 2.570 1.712 3.153 2.721 2.972 2.106 0.313 2.719 2.542 0.643 2.495 2.721 0.956 2.070 2.878 1.597 1.969 2.899 1.758 1.768 2.929 2.088 1.677 2.939 2.240 1.479 2.957 2.583 1.387 2.963 2.744 2.843 1.984 0.315 2.485 2.320 0.639 2.163 2.444 0.954 1.687 2.525 1.459 1.408 2.547 1.775 1.279 2.554 1.927 1.016 2.564 2.243 0.742 2.568 2.581 0.607 2.571 2.753

Fitting Target

Here you can select the desired fitting target.

Lowest sum of squared (SSQ) absolute error (traditional) Lowest sum of orthogonal distance (ODR) (robust, slow) Lowest sum of squared (SSQ) relative error (robust, slow) Lowest sum of absolute value of absolute error (robust, slow) Lowest sum of absolute value of relative error (robust, slow) Lowest peak absolute value of absolute error (robust, slow) Lowest peak absolute value of relative error (robust, slow) Lowest AIC (robust, slow) Lowest BIC (robust, slow)

Data labels for graphs

Here you can enter the X, Y and Z data labels to be printed on the report graphs.

Label for first independent data (X)

Label for second independent data (Y)

Label for dependent data (Z)

Graph scaling and lin/log control

Here you can choose the scaling of the data
plots, the 3D scatterplots and the VRML files.
Log plots require data values greater than zero.

X Scale		Y Scale		Z Scale
Autoscale +/- 1% Autoscale +/- 2.5% Autoscale +/- 5% Autoscale +/- 10% Autoscale +/- 25% Autoscale +/- 50% Autoscale +/- 100% Autoscale +/- 150% Autoscale +/- 200% Manual Scale Max X: Min X:   Linear Scaling Logarithmic Scaling		Autoscale +/- 1% Autoscale +/- 2.5% Autoscale +/- 5% Autoscale +/- 10% Autoscale +/- 25% Autoscale +/- 50% Autoscale +/- 100% Autoscale +/- 150% Autoscale +/- 200% Manual Scale Max Y: Min Y:   Linear Scaling Logarithmic Scaling		Autoscale +/- 1% Autoscale +/- 2.5% Autoscale +/- 5% Autoscale +/- 10% Autoscale +/- 25% Autoscale +/- 50% Autoscale +/- 100% Autoscale +/- 150% Autoscale +/- 200% Manual Scale Max Z: Min Z:   Linear Scaling Logarithmic Scaling

Graph size

Here you can choose the size of the report graphs. Smaller size files load quickly,
with less resolution while large files show more resolution but load more slowly.

320 x 240 500 x 400 640 x 480 700 x 500 800 x 600 900 x 700 1024 x 768

Graph colors

Here you can select various color options for the output graphs.

Graph background color                                 Graph text color                                 Graph line color                                 Graph frame color                                 3D mesh color

Scientific Notation

Here you can control scientific notation on the data plots, the
3D surfaces, the contour plots, and the VRML model files.

X Control		Y Control		Z Control
On Off Auto		On Off Auto		On Off Auto

Polynomial selection

Select the highest order terms for the polynomial equation.

0 1 2 3 4 Highest term for first independent data (X) 0 1 2 3 4 Highest term for second independent data (Y)

3D rotation angles

Here you can select and rotate the 3D scatter and surface plots.

0 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 300 315 330 345 Rotation view angle in degrees 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 Vertical view angle in degrees

VRML Options

Here you can set various characteristics of the VRML 2.0 files.

0 percent 10 percent 20 percent 30 percent 40 percent 50 percent 60 percent 70 percent 80 percent 90 percent 100 percent	Surface Plot - Model Surface Opacity
On     Off	Surface Plots - Vertical Lines Connecting Surface and Data Points
On     Off	Surface Plots - Display Data Points
On     Off	Scatter and Surface Plots - Bounding Cube
0 percent 10 percent 20 percent 30 percent 40 percent 50 percent 60 percent 70 percent 80 percent 90 percent 100 percent	Absolute Error Plot - Absolute Error Zero Plane Opacity
On     Off	Absolute Error Plot - Vertical Lines Connecting Zero Plane and Absolute Error Points
On     Off	Absolute Error Plot - Display Absolute Error Points
On     Off	Absolute Error Plot - Bounding Cube
0 percent 10 percent 20 percent 30 percent 40 percent 50 percent 60 percent 70 percent 80 percent 90 percent 100 percent	Relative Error Plot - Relative Error Zero Plane Opacity
On     Off	Relative Error Plot - Vertical Lines Connecting Zero Plane and Relative Error Points
On     Off	Relative Error Plot - Display Relative Error Points
On     Off	Relative Error Plot - Bounding Cube
0 percent 10 percent 20 percent 30 percent 40 percent 50 percent 60 percent 70 percent 80 percent 90 percent 100 percent	Percent Error Plot - Percent Error Zero Plane Opacity
On     Off	Percent Error Plot - Vertical Lines Connecting Zero Plane and Percent Error Points
On     Off	Percent Error Plot - Display Percent Error Points
On     Off	Percent Error Plot - Bounding Cube