hgprieto

Syntax >>>> POTENTIAL Parent Command all third-level commands in block > OBSERVATION   Subcommand –   Description A data-worth analysis examines the value of adding potential observations to an existing calibration data set. Such observations are indicated by command >>>> POTENTIAL. Note that (actually or presumably) existing data sets are also included in the data-worth […]

Syntax >>>> POLYNOM: idegree (time_unit) Parent Command all third-level commands in block > OBSERVATION   Subcommand –   Description Represents observed data by a polynomial of degree idegree: z(t)=Sum(Ai* ti ) i=0,…,idegree where t denotes time in time_units (default is seconds), and Ai are the idegree+1 coefficients which are read in free format on the

Syntax >>>> PICK: npick Parent Command all third-level commands in block > OBSERVATION   Subcommand –   Description This command identifies the number of data points being skipped when reading from a long data file. Only every npick data point is read. The default is npick=1, i.e., every data point is accepted. Example > OBSERVATION

Syntax >>>> PHASE phase_name/: iphase Parent Command >>> ELEMENT >>> SOURCE (o) Subcommand – Description This command identifies a phase either by its name (phase_name) or the phase number (iphase). A list of allowable phase names for the given EOS module can be obtained from the header of the iTOUGH2 output file. Example > OBSERVATION

Syntax >>>> PENALTY: penaltypar(1) penaltypar(2) Parent Command all third-level commands in block > OBSERVATION Subcommand –   Description This command reads parameters of the penalty function used to impose non-equality constraints on model output. The lower and upper bounds of the model output (zbound) are provided through command >>>> CONSTRAINT. Model outputs beyond that range

Syntax >>>> AVERAGE (VOLUME) or >>>> MEAN (VOLUME) Parent Command all third-level commands in block > OBSERVATION Subcommand – Description If multiple elements or connections are provided to indicate the location of a measurement point, iTOUGH2 takes the average of all calculated values as the model output to be compared to the data. The user

Syntax >>>> PEAK/MAXIMUM, MINIMUM (TIME) (ANALYZE/RAW) (CONTINUOUS/DISCRETE) Parent Command all third-level commands in block > OBSERVATION   Subcommand – Description This command returns the maximum (peak) or minimum value of a breakthrough curve within the time window, or the TIME when these extrema occur. As data, the user may either directly specify the peak value

Syntax >>>> LOGARITHM Parent Command all third-level commands in block > OBSERVATION Subcommand – Description This command takes the natural logarithm of an observable variable. The corresponding measurement error is assumed to be log-normally distributed. Taking the logarithm is suggested when the observation assumes values over many orders of magnitude (e.g., concentration, water potential). Note

Syntax >>>> LINK: linktoset/setanno (ADD/SUBTRACT/MULTIPLY/DIVIDE) Parent Command all third-level commands in block > OBSERVATION Subcommand – Description Links the current observation set to a previously defined reference set with No. linktoset or set annotation setanno. The value of the current set is then recalculated by adding it to, subtracting it from, multiplying it with, or

Syntax >>>> INDEX: index (index_i…) or >>>> PARAMETER: index (index_i…) Parent Command all third-level commands in block > OBSERVATION Subcommand – Description This command provides a list of integers for further specification of user-specified observations (see command >> USER (o)). Example (see command >> USER (o)) See Also >> USER (o)