Interpolate

The x-axis properties of equidistant and discrete 2D data objects can be changed by this function. Interpolate may also be used to convert discrete data to equidistant data. It offers three manipulation operations at once:

• The resolution of a spectrum can be changed.

• Data points can be shifted on the x-axis.

• Cut a spectrum.

Cutting spectra is done easily! Besides the interpolation function, the Cut X-Axis operation can be used to cut spectra conveniently. Please review the "Cut X-Axis" command section for details.

Interpolate menu command

To interpolate 2D data object, please follow the instructions below:

1. Activate the spectrum you like to change.

2. From the Mathematics menu, select the Interpolate command.

3. Adjust the parameters in the Mathematics tab. By default the last used settings are recognized by the software.

• Click the Reset button to retrieve the parameters of the current active object (Optional).

• In the X-Axis Properties category, enter a new Resolution value into the text field. When converting discrete objects an average resolution will be proposed. Change this to the desired resolution.

4. Press the Calculate button.

Shift x-axis data points

To shift whole spectrum to the left or right, please follow the instructions below:

1. Activate the spectrum you like to change.

2. From the Mathematics menu, select the Interpolate command.

3. Adjust the parameters in the Mathematics tab. By default the last used settings are recognized by the software.

• Click the Reset button to retrieve the parameters of the current active object (Optional).

• In the X-Axis Properties category, enter a new Minimum value into the text field.

• In the X-Axis Properties category, enter a new Maximum value into the text field.

4. Press the Calculate button.

Cut spectrum

To cut a spectrum, please follow the instructions below:

1. Activate the spectrum you like to change.

2. From the Mathematics menu, select the Interpolate command.

3. Adjust the parameters in the Mathematics tab. By default the last used settings are recognized by the software.

• Click the Reset button to retrieve the parameters of the current active object (Optional).

• In the X-Axis Properties category, enter a new Minimum value within the range of the current spectral region into the text field.

• In the X-Axis Properties category, enter a new Maximum value within the range of the current spectral region into the text field.

4. Press the Calculate button.