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---
title: "Release History of the airGR Package"
output: 
  html_document:
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    toc: true
    toc_float: true
    depth: 3  # upto three depths of headings (specified by #, ### and ###)
    number_sections: false  ### if you want number sections at each table header
    theme: united  # many options for theme, this one is my favorite.
    highlight: tango  # specifies the syntax highlighting style  
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    keep_md: true
---




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### 1.0.13.1 Release Notes (2018-08-29) 
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#### Deprectated and defunct

- The <code>LatRad</code> argument is now deprecated in <code>PEdaily_Oudin()</code> and replaced by the <code>Lat</code> argument.

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- The unused <code>Ind_zeroes</code> argument of the <code>CreateInputsCrit()</code> function is now deprecated.

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#### Major user-visible changes

- <code>PEdaily_Oudin()</code> now presents a <code>LatUnit</code> argument which allows to chose the unit of the latitude between radians and degrees.

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- <code>Calibration_Michel()</code> is now faster during the grid-screening step when a parameter is set using <code>FixedParam</code> in <code>CreateCalibOptions()</code>.

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- <code>CreateCalibOptions()</code> now returns an error when all the parameters are set and a warning message when all the parameters are not set <code>FixedParam</code> in the <code>FixedParam</code> argument.
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#### Minor user-visible changes

- Several functions of the package were cleant or slightly modified, with no effect on their outputs. 

____________________________________________________________________________________


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### 1.0.10.11 Release Notes (2018-06-29) 
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#### Bug fixes

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- Fixed bug in <code>RunModel_GR2M()</code>. The function now returns the total precipitation (P) instead of the net rainfall (P1).
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#### Major user-visible changes

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- <code>RunModel_GR2M()</code> now returns more explicit precipitation outputs names.
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- <code>CreateInputsCrit()</code> now returns a warning message when the KGE (or KGE') is used with a log transformation on flows.
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- The article reference is corrected.


#### Minor user-visible changes

- The documentation and help of several functions were improved.

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____________________________________________________________________________________


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### 1.0.9.64 Release Notes (2017-11-10) 
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#### New features

- An article describing the airGR package has been published. Its reference has been added and will be displayed with <code>citation("airGR")</code>. 

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- Added <code>CreateIniStates()</code> function in order to help user to format the <code>IniStates</code> argument for <code>CreateRunOptions()</code>.
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- Added the <code>Param_Sets_GR4J</code> dataset. It contains generalist parameter sets for the GR4J model.
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- Three vignettes have been added. They are relative to different calibration methods (including the generalist parameters sets of the GR4J model).
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#### Bug fixes

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- Fixed bug in <code>RunModel_GR4H()</code>: in <code>frun_GR4H</code> Fortran subroutine, <code>St(2)</code> is now set to 0 (instead of <code>St(1)</code>) when <code>St(2) < 0</code>. 
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- Fixed bug in <code>plot.OutputsModel()</code> for the regime plot when the period is less than 1 year.

- Fixed bug in <code>plot.OutputsModel()</code> when there is no common data to plot the cumulative frequency or the correlation QQ.

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- Fixed bug in <code>plot.OutputsModel()</code> for the y-axis labelling of flows time series when <code>log_scale = TRUE</code> and <code>BasinArea</code> is used.
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#### Deprectated and defunct

- The <code>RunSnowModule</code> argument is now deprecated in <code>CreateRunOptions()</code>.


#### Major user-visible changes

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- <code>RunModel_GR4J()</code>, <code>RunModel_GR5J()</code> and <code>RunModel_GR6J()</code> (and <code>CemaNeige_GR&#42;J()</code>) now return Ps, Pn and actual exchanges. See the model Fortran codes for more details about the calculation of these variables.
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- <code>CreateInputsModel()</code> now returns an error when <code>DatesR</code> contains duplicated values.

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- <code>RunModel_GR5J</code> now returns <code>StateEnd</code> in the same order as the other models.
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#### Minor user-visible changes

- <code>plot.OutputsModel()</code> now returns a warning message when the length of Qobs is different from the length of Qsim. 

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- The X1 parameter from GR4H, GR4J, GR2M, GR5J and GR6J, the X3 parameter from GR4H, GR4J, GR5J and GR6J and the X6 parameter from GR6J are now set to 1e-2 when they are fixed to lower values. <code>RunModel&#42;()</code> functions now return a warning message in this case. <code>RunModel&#42;()</code> functions now return a warning when X4 < 0.5 and its value is set to 0.5.
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- The commands <code>?L0123001</code>, <code>?L0123002</code> and <code>?L0123003</code> now return the documentation page related to <code>BasinObs</code>.

- Many functions of the package were cleant or slightly modified, with no effect on their outputs. 

- The documentation and help of several functions were improved.


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#### CRAN-compatibility updates
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- "airGR.c" file registers native routines.

____________________________________________________________________________________


### 1.0.5.12 Release Notes (2017-01-23) 


#### New features

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- <code>DataAltiExtrapolation_Valery()</code> and <code>CreateInputsModel()</code> now present a <code>PrecipScale</code> argument which allows rescaling precipitation when it is interpolated on the elevation layers when CemaNeige is used.
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#### Bug fixes

- Fixed bug in <code>DataAltiExtrapolation_Valery()</code>. The elevation gradients for air temperature returned by <code>CreateInputsModel()</code> are improved.


#### User-visible changes

- <code>DataAltiExtrapolation_Valery()</code> has been improved. <code>DataAltiExtrapolation_Valery()</code> now runs faster (and by consequence <code>CreateInputsModel()</code> too, when CemaNeige is used).

____________________________________________________________________________________


### 1.0.4 Release Notes (2017-01-18) 

#### New features

- <code>RunModel_CemaNeige()</code>, <code>RunModel_CemaNeigeGR4J()</code>, <code>RunModel_CemaNeigeGR5J()</code> and <code>RunModel_CemaNeigeGR6J()</code> now return air temperature for each elevation layer. 


#### Deprectated and defunct

- S3 plot method defined for <code>OutputsModel</code> objects. It means that the <code>plot_OutputsModel()</code> function is deprecated and his use has been replaced by the use of <code>plot.OutputsModel()</code> or <code>plot()</code>.

- In <code>plot.OutputsModel()</code> the <code>PlotChoice</code> argument is deprecated and has been renamed <code>which</code>.


#### User-visible changes

- <code>plot.OutputsModel()</code> displays air temperature time series for each layer when <code>CemaNeige</code> is used (argument <code>which = "Temp"</code> or <code>"all"</code>).

____________________________________________________________________________________


### 1.0.3 Release Notes (2016-12-09) 

#### New features

- <code>ErrorCrit&#42;()</code> functions gain a warnings argument to replace the verbose action and the verbose argument now prints the criterion value(s).


#### Bug fixes

- Fixed bug in <code>CreateCalibOptions()</code> when <code>StartParamList</code> or <code>StartParamDistrib</code> arguments are used.


#### User-visible changes

- <code>CreateInputsModel()</code> now returns an error if <code>NLayers <= 0</code> when <code>CemaNeige</code> is used.

- <code>plot_OutputsModel()</code> now displays raw values on the y-axis when the discharge time series is represented with log scale (formerly, log values of discharges were displayed on the y-axis).


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### 1.0.2 Release Notes (2016-11-03) 


#### New features

- <code>SeriesAggreg()</code> gains a TimeLag argument that corresponds to a numeric value indicating a time lag (in seconds) for the time series aggregation (useful to aggregate hourly time series to the daily time step for instance).
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 In addition, the function now accepts input dates in both POSIXt formats (POSIXct and POSIXlt). The output is in POSIXct format.
 
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- <code>plot_OutputsModel()</code> gains a <code>log_scale</code> argument in order to plot the flow with a log scale.

- A tutorial is available online on the following link: from http://webgr.irstea.fr/airGR.
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 It can also be displayed with the <code>vignette("airGR")</code> command.
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#### Bug fixes

- The value <code>sort</code> for the <code>transfo</code> argument of <code>CreateInputsCrit()</code> was not taken into account. It is now fixed. 


#### Deprectated and defunct

- <code>CreateCalibOptions()</code> loses the OptimParam argument that was redundant with the <code>FixedParam</code> argument. The <code>Calibration_Michel()</code> was modified to take into account this change by using directly <code>FixedParam</code>, but this is transparent to the user. 

- <code>CreateCalibOptions()</code> loses the StartParam argument that was not used. 

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#### Major user-visible changes

- The <code>RunModel_GR6J()</code> and <code>RunModel_CemaNeigeGR6J()</code> models were modified back to versions previous to 1.0.1 to prevent from unwanted efficiency criteria deterioration related to the calibration with <code>Calibration_Michel()</code>. 
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 The actual model codes were not modified but the <code>TransfoParam_GR6J()</code> and <code>CreateCalibOptions()</code> functions were modified regarding the X5 parameter. 
 It is strongly advised to use airGR 1.0.2 for the <code>RunModel_GR6J()</code> and <code>RunModel_CemaNeigeGR6J()</code> functions if you are using <code>Calibration_Michel()</code>, as they are much more efficient. 
 In case you were using your own calibration algorithm, you will not notice any difference. 
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#### Minor user-visible changes

- <code>CreateInputsModel()</code> and <code>DataAltiExtrapolation_Valery()</code> functions now allow both POSIXt formats (POSIXct and POSIXlt).


____________________________________________________________________________________


### 1.0.1 Release Notes (2016-04-21) 

#### Deprectated and defunct

- The <code>Calibration_HBAN()</code> and <code>DataAltiExtrapolation_HBAN()</code> functions have respectively been renamed as <code>Calibration_Michel()</code> and <code>DataAltiExtrapolation_Valery()</code> after the names of their creators.

- The <code>Calibration_optim()</code> function has been removed from the package.

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- The silent mode is now defined by the <code>verbose = TRUE</code> argument (formerly <code>quiet = FALSE</code>) in the following functions:
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<code>Calibration()</code>, <code>Calibration_Michel()</code>, <code>CreateInputsModel()</code>, <code>CreateRunOptions()</code>, <code>DataAltiExtrapolation_Valery()</code>, <code>ErrorCrit()</code>, <code>ErrorCrit_KGE()</code>, <code>ErrorCrit_KGE2()</code>, <code>ErrorCrit_NSE()</code>, <code>ErrorCrit_RMSE()</code>, <code>plot_OutputsModel()</code>, <code>SeriesAggreg()</code>.


#### Major user-visible changes
- The GR5J model has been modified: previously, two unit hydrographs were used, now only one is remaining.
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- An important proportion of the transformations of the parameters have been modified (<code>TransfoParam&#42;()</code> functions). Since this modifies the local search, calibration results will be different .

- The quantiles of the parameters have been recalculated with the new transformations (<code>CreateCalibOptions()</code> function). Since these quantiles constitute the starting point of the calibration algorithm, calibration results will be different.


#### Minor user-visible changes

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- The Fortran model core codes have been modified:
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	- optimisation of the codes for fastening of computation;
	- simplification of the internal variables for easier reading and understanding.
	
- The list of the contributors and authors is now full.

- The references of the package has been updated; they are returned by the following R-command <code>citation("airGR")</code>.

____________________________________________________________________________________


### 0.8.1.2 Release Notes (2015-08-21) 

#### Bug fixes

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- Fixed bug in <code>CreateInputsModel()</code> that was related to the handling of missing values.
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- Fixed bug in <code>CreateRunOptions()</code> that prevented the correct use of the <code>IniResLevels</code> argument (to manually set the filling rate of the production and routing stores).
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#### Minor user-visible changes

- Removal of an unnecessary warning when <code>IndPeriod_WarmUp = 0</code>.


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#### CRAN-compatibility updates
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- Modification of namespace file to ensure proper use under linux whithout compilation issues.


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### 0.8.0.2 Release Notes (2015-04-15) 


#### New features

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- Three new hydrological models: <code>RunModel_GR4H() function for </code> GR4H (hourly), <code>RunModel_GR2M()</code> function for GR2M (monthly) and <code>RunModel_GR1A()</code> function for GR1A (yearly).
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- New function <code>SeriesAggreg()</code> to easily aggreg timesteps.


#### Bug fixes

- Fixed bug in <code>ErrorCrit_RMSE()</code> which led to incorrect calibration (the criterion was maximised instead of minimised).


#### Major user-visible changes

- Update of the functions <code>CreateRunOptions()</code>, <code>CreateCalibOptions()</code> and <code>plot_OutputsModel()</code> to handle the new models.

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- Modification of CemaNeige Fortran code to add an update of Gratio after the SnowPack update (no impact on snow simulation).
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#### Minor user-visible changes

- Improvement of the <code>plot_OutputsModel()</code> function to allow a selection among available plots.

- Minor update in <code>ErrorCrit_KGE()</code> and <code>ErrorCrit_KGE2()</code> to handle case when only one values in not NA.

- Update of the scripts in airGR-advanced-example to match the structures of the <code>BasinData</code> objects.

- Correction of formatting issue in airGR-advanced-example regarding the "List_HypsoData.txt" file.


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### 0.7.4 Release Notes (2014-11-01) 

#### User-visible changes

- Stable version stemming from version 0.7.3.

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### 0.7.3 Release Notes (2014-XX-XX) 

#### Minor user-visible changes

- Improvements allowing the arrival of new models.

- Improvements of the argument verifications in <code>CreateInputsModel()</code>, <code>CreateRunOptions()</code>, <code>CreateInputsCrit()</code>, <code>CreateCalibOptions()</code>.

- Improvements of all the <code>ErrorCrit()</code> functions to better account for the cases with constant flow values or local zeros.

____________________________________________________________________________________


### 0.7.2 Release Notes (2014-07-14) 

#### New features

- New argument in many functions (<code>quiet = TRUE</code> or <code>FALSE</code>) to choose if the warnings should be suppressed or not.


#### Bug fixes

- Fixed bug in <code>CreateCalibOptions()</code> to handle models with only one parameter.


#### Major user-visible changes

- CemaNeige users must now specify one <code>MeanAnSolidPrecip</code> for each elevation layer. The <code>CreateRunOptions()</code> function is impacted.

- CemaNeige users can now specify the mean elevation of the input series (before it was always considered equal to the catchment median elevation). 
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 The impacted functions are <code>CreateInputsModel()</code> and <code>DataAltiExtrapolation_HBAN()</code>.
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#### Minor user-visible changes

- Improvement of the <code>plot_OutputsModel</code> function (to handle 0 in Qobs and Qsim).

- Improved documentation.

____________________________________________________________________________________


### 0.7.1 Release Notes (2014-07-14) 

#### Bug fixes

- Fixed bug in <code>Calibration_HBAN()</code>. The function was not working properly with models having only one parameter.


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#### Deprecated and defunct
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- The <code>CalibrationAlgo_&#42;()</code> functions were renamed into<code>Calibration_&#42;()</code>.


#### Major user-visible changes

- New architecture with better format verification procedure (using classes) and simpler setting of default configuration.

- New architecture where the model, calibration and error functions are in the arguments of the functions
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 (the exotic use of "generic function" created by the users has been removed).
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- Improved documentation and examples.



____________________________________________________________________________________


### 0.7.0 Release Notes (2014-06-06) 

#### Experimental features

- unfinished version used for development purpose.

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### 0.6.2 Release Notes (2014-02-12) 

#### Bug fixes

- RC11 bug correction: the automatic selection of the warm-up period was not working properly when no data was available from warm-up (i.e. when the user had set the run to start at the very first index).

- RC10 bug correction: the <code>CalibrationAlgo_HBAN()</code> function was not working in the very rare case when the diagonal search was activated and lead to a set outside the authorised range.

- RC9 bug correction: the <code>CalibrationAlgo_HBAN()</code> function was not working properly with models having only one parameter.

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- RC8 bug correction of the <code>ModelDefaultIniOptions()</code> function (this bug was introduced in the RC7 and caused an error when <code>IndPeriod_WarmUp = NULL</code>.
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- RC7 bug correction of the <code>ModelDefaultIniOptions()</code> function (the automatic selection of one year for warm-up was not handling properly missing data).

- RC6 correction of the help files (the description of CemaNeige parameters were inverted).

- RC5 differs from previous releases in the way the data are read and stored (in a list instead of individual vectors).
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 The package is similar, only the examples of Main and the files in MyScriptBlocks have changed.
 All basin data are now stored inside a list named <code>BasinData</code>. This will greatly ease the future use of Rdata files (instead of txt files) as storage format for the time series of observation. 
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____________________________________________________________________________________

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### 0.6.1 Release Notes (2014-02-12) 


#### New features

- Additional functions for results plotting (the <code>{zoo}</code> package is required for some of them).

- Add multi-objective calibration using <code>nsga2()</code> (the <code>{mco}</code> package is required).

#### Major user-visible changes

- The definition of the generic function is now made in a much simpler way (e.g. see <code>DefineFunctions_Model()</code> or <code>DefineFunctions_ErrorCrit()</code>).


#### Minor user-visible changes

- Code improvements to reduce the computation time.

- Clearer instructions for the adding and modification of a model.

- Improvements of the documentation.

____________________________________________________________________________________

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### 0.6.0 Release Notes (2014-02-12) 

#### New features

- The field Multiplier has been added in the ErrorCrit() outputs, to indicate whether the criterion is an error (to minimise) or and efficiency (to maximise).
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 This allows to provide real efficiency values in the outputs e.g. NSE[Q] instead of (-1) &times; NSE[Q].
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#### Deprecated and defunct
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- <code>EfficiencyCrit()</code> have been replaced by <code>ErrorCrit()</code> to avoid misunderstanding (by default, the algorithms minimise the error criterion).

____________________________________________________________________________________


### 0.5.2 Release Notes (2014-02-05) 


#### Deprectated and defunct

- The <code>SelectPer</code> arguments are replaced by <code>IndPeriod</code> to ease understanding.

- The <code>PE</code> arguments are replaced by <code>PotEvap()</code> to ease understanding.

- The <code>Fsol</code> arguments are replaced by <code>FracSolidPrecip</code> to ease understanding.


#### Major user-visible changes

- R 2.15 in not supported by default.

- The check that <code>SelectPer_Run()</code> is continuous is now made in the <code>CheckArg()</code> functions.

- Check of the model functioning time step.

- Name of the calibration criterion provided in <code>OutputsAlgo()</code>.


#### Minor user-visible changes

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- Missing values in Fortran are now -999.999 instead of -9.999.
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____________________________________________________________________________________


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### 0.5.1 Release Notes (2014-01-27) 
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#### New features

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- New <code>EfficiencyCrit_NSE_sqrtQ()</code> function to compute NSE criterion on sqrt flows.
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#### Bug fixes

- Incorrect arguments in the call to <code>RunModelAndCrit</code> from <code>CalibrationAlgo_optim_stats</code> and <code>CalibrationAlgo_nlminb_stats</code>.

- <code>CalibrationAlgo_nlminb_stats</code> argument was wrongly defined in <code>DefineFunctions_CalibrationAlgo()</code> (<code>optim</code> instead of <code>nlminb</code>).

- Format checking for <code>RunOptions</code> was incorrectly made in <code>CheckArg()</code> function.