Mitsubishi P91W Instruction Manual download pdf (Page 90)

ChemiDoc MP with Image Lab Software | Analyzing Images

3. Select a unit of measure from the choices listed in the Units drop-down

list.

4. Select a regression method from the drop-down list.

Keep the following guidelines in mind while making your choice.

Linear—generates a straight line that is the best fit of the values you

provided and is preferred in most cases.

Point-to-point—generates a curve in which each data point is

connected directly to the next, regardless of the shape of the resulting

curve.

Cubic spline—generates a smooth curve that connects each data

point. At least four standard points are required to use this method of

least-squares polynomial fits.

5. Click Standard Curve in the toolbar, select the Absolute Quantity

Standard Curve tab, and a calibration curve displays. Standards are

Regression Method

Minimum Number of

Standard Bands

Minimum Number with

Force Through Origin

Option

Linear 2 1

Point-to-point 2 1

Cubic spline 5 4

1 2 ... 85 86 87 88 89 90 91 92 93 94 95 ... 143 144

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Mitsubishi P91W Instruction Manual Page 90