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- Start GepardEvaluation, choose `Open Project` in the left menu and in the dialog select the **directory** containing the project files, or
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- under Gepard > Tools > Open Sample in GepardEvaluation, switch from the measurement to the evaluation module.
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Measured spectra are stored in spectra.npy in the project directory. If the opended project does not already contain spectra (i.e. the file `spectra.npy` is missing), GEPARDevaluation will prompt you to import spectra for each of the performed measurements from a text file.
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In a further dialog, the format of the selected text file needs to be selected.
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Currently supproted options are: WiTec, Renishaw, PerkinElmer. The spectra do not need to be measured with one of these insruments, as long as they follow one of the implemented formats:
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- **WiTec**
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Tab-separated text file with without header, containing (N) measurements in (N+1) columns. First column contains wavenumbers, consequent columns contain intensities of the measurements. CAUTION: The correlation of measurements to particles depends on the spectra being in the correct order in the text file, which is the order of measurement!
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- **Renishaw**
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Tab-separated text file with 4 columns and header: #X #Y #Wave #Intensity,
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or 5 columns and header : #X #Y #Z #Wave #Intensity.
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The first two (or three columns) contain the particle coordinates, followed by wavenumbers and intensities.
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The spectra are listed one after the other. Once again, the spectra are correlated to particles according to their order. The particle coordinates are not used.
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- **PerkinElmer**
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Semicolon-separated text file with header, containing (N) measurements in (N+1) columns: wavenumbers in the first column, followed by intensities for each spectrum.
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The header (first row) contains the name of particle in the form: "Marker_[ind].sp". This is important, because the particle index is extracted from the header and used to correlate spectra to particle coordinates. The second row is not read by Gepard. Spectra start in the third row.
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