Olis DSM CD, Quick Reference Manual

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Saving a dataset
1
Click on the desired dataset in the
Experiment
window.
2
Add any comments, and change the dataset name if desired.
3
Choose
Save Dataset
or
Save dataset as…
under the
File
menu. Choose an appropriate directory and file name.
Saving an experiment
1
Click on the desired experiment in the
Experiment
window.
2
Choose
Save Experiment
under the
File
menu.
3
The program will prompt for file names for each data set
in the experiment. When the experiment is reopened all
the accompanying datasets will be opened.
Assigning a baseline
1
Highlight the desired data set in the experiment window,
2 Left click on the data to select it and then right click on the
data and select Assign as Baseline. The baseline will continue
to be applied until the wavelength range, number of data
points, or Assign baseline checkbox have been changed.
Exporting a 2-D data set
1
Select a data set to be exported.
2 Right click on the chart and select
Save as Ascii
.
3
Enter the filename when prompted.
‰
Alternatively, data can be exported directly into Excel by
selecting
Export to Excel
under the right-click menu.
Doing math on a dataset
1
In the
Experiment
window, select a dataset by clicking on it.
2
Right click on the dataset and choose
Select
.
3
Repeat this procedure for any datasets to be included in
the mathematical operation.
4
Right click on the dataset again and choose the desired
mathematical operation under the
Data Processing
menu.
These options are also available under the
Tools
menu.
5
The new mathematically manipulated dataset will be
generated in the
Experiment
window.
Converting CD units
1
Select data by clicking on icon in
Experiment
window
and choosing
Select
.
2
Right click again and choose
Convert CD Units
under
Data Processes
.
3 Choose the appropriate units.
Printing a data set as a report
1
Select chart by clicking on dataset.
2
Select
Print Preview
under
File
menu and choose
Color
or
Black and White
.
3
Click on
Print
.
Fitting 2-D data set
1
Click on dataset to be fit.
2
If you desire to fit only a portion of this data, select
Create Data Subset
in the
Tools
menu. When prompted,
enter the desired range. Click on new dataset to select it.
3 Select
2-D Fits
under the
Fits
menu and select the
desired model to fit the data. If you would like a data
fitting model added to the software, please contact Olis.
Fitting a 3-D data set
‰
There is a tutorial under the
Help
menu which describes
SVD data processing and fitting.
Changing the axis scale on a data set
1 Select desired data set
2
Right-click on graph
3
Select scale and enter desired values.
Viewing more than one set of data
1
Open all desired sets of data.
2 Select a dataset to be viewed (move between data sets in
the
Experiments
window on the right).
3
Select
Copy Slice
under
Edit
menu.
4 Select second data set to view.
5
Select
Paste Slice
under
Edit
menu
‰
To hide a slice from view (and from the printer), select it
and select
Hide Slice
under the
View
menu.
‰
To switch between hidden slices and viewed slices, select
Swap Hidden/Unhidden Slices
under
View
menu.
Smoothing a scan
1
In the
Experiment
window, select a dataset by
clicking on it.
2
Right click on the desired dataset and choose
Select
from the pop up menu.
3
Right click on the dataset again and choose the
Smooth
option under
Data Processing
in the pop up menu.
4
Choose the degree of smoothing (3-25 points per average).
5
A new smoothed dataset will be generated in the
Experiment
window. The name will by default be
“[original data file name]-smoothed.”
Smoothing a 3D dataset using SVD
1
Click on the desired dataset in the
Experiment
window.
2
Click on
SVD
to generate the SVD eigenvectors.
3
Choose
Reconstruct 3D from SVD Data
.
Naming a dataset
1
Double click on the
Name
property in the
Properties
window.
2
Enter a name for the dataset.
3
Press enter to assign the name. This name will remain with the
dataset and is distinct from the file name.
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