FCS Keyword List
This page contains a list of the special keywords defined as part of the FCS 3.0 Standard. Scientists can use their own keyword identifiers, but they may not start with $, unless it is defined in the specfication document. The technical description is here.
Required Keywords |
|
| $BEGINANALYSIS | Byte-offset to the beginning of the ANALYSIS segment. |
| $BEGINDATA | Byte-offset to the beginning of the DATA segment. |
| $BEGINSTEXT | Byte-offset to the beginning of a supplemental TEXT segment. |
| $BYTEORD | Byte order for data acquisition computer. |
| $DATATYPE | Type of data in DATA segment (ASCII, integer, floating point). |
| $ENDANALYSIS | Byte-offset to the end of the ANALYSIS segment. |
| $ENDDATA | Byte-offset to the end of the DATA segment. |
| $ENDSTEXT | Byte-offset to the end of a supplemental TEXT segment. |
| $MODE | Data mode (list mode, histogram). |
| $NEXTDATA | Byte offset to next data set in the file. |
| $PAR | Number of parameters in an event. |
| $PnB | Number of bits reserved for parameter number n. |
| $PnE | Amplification type for parameter n. |
| $PnR | Range for parameter number n. |
| $TOT | Total number of events in the data set. |
Optional Keywords |
|
| $ABRT | Events lost due to data acquisition electronic coincidence. |
| $BTIM | Clock time at beginning of data acquisition. |
| $CELLS | Description of objects measured. |
| $COM | Comment. |
| $COMP | Fluorescence compensation matrix. |
| $CSMODE | Cell subset mode, number of subsets to which an object may belong. |
| $CSVBITS | Number of bits used to encode a cell subset identifier. |
| $CSVnFLAG | The bit set as a flag for subset n. |
| $CYT | Type of flow cytometer. |
| $CYTSN | Flow cytometer serial number. |
| $DATE | Date of data set acquisition. |
| $ETIM | Clock time at end of data acquisition. |
| $EXP | Name of investigator initiating the experiment. |
| $FIL | Name of the data file containing the data set. |
| $GATE | Number of gating parameters. |
| $GATING | Specifies region combinations used for gating. |
| $GnE | Amplification type for gating parameter number n. |
| $GnF | Optical filter used for gating parameter number n. |
| $GnN | Name of gating parameter number n. |
| $GnP | Percent of emitted light collected by gating parameter n. |
| $GnR | Range of gating parameter n. |
| $GnN | Name used for gating parameter n. |
| $GnT | Detector type for gating parameter n. |
| $GnV | Detector voltage for gating parameter n. |
| $INST | Institution at which data acquired. |
| $LOST | Number of events lost due to computer busy. |
| $OP | Name of flow cytometry operator. |
| $Pkn | Peak channel number of univariate histogram for parameter n. |
| $PKNn | Count in peak channel of univariate histogram for parameter n. |
| $PnF | Name of optical filter for parameter n. |
| $PnG | Amplifier gain used for acquisition of parameter n. |
| $PnL | Excitation wavelength for parameter n. |
| $PnN | Short name for parameter n. |
| $PnO | Excitation power for parameter n. |
| $PnP | Percent of emitted light collected by parameter n. |
| $PnS | Name used for parameter n. |
| $PnT | Detector type for parameter n. |
| $PnV | Detector voltage for parameter n. |
| $PROJ | Name of the experiment project. |
| $RnI | Gating region for parameter number n. |
| $RnW | Window settings for gating region n. |
| $SMNO | Specimen (tube or well) label. |
| $SRC | Source of the specimen (patient name, cell types) |
| $SYS | Type of computer and its operating system. |
| $TIMESTEP | Time step for time parameter. |
| $TR | Trigger parameter and its threshold. |
| $UNICODE | UNICODE code page for string type keyword values. |