Commit f41c8c94 by Uwe Schulzweida

### Docu update.

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 Uwe Schulzweida, , is the main author. Ralf Mueller, Oliver Heidmann, Cedrick Ansorge, Luis Kornblueh, Fabian Wachsmann Modali Kameswarrao Fabian Wachsmann Cedrick Ansorge, Modali Kameswarrao Ralf Quast,
 ... ... @@ -26,8 +26,11 @@ Authors: This program was developed at the Max-Planck-Institute for Meteorology. Uwe Schulzweida, , is the main author. Ralf Mueller, Oliver Heidmann, Luis Kornblueh, Fabian Wachsmann Cedrick Ansorge, Modali Kameswarrao Ralf Quast, Send questions, comments and bug reports to ... ...
 \subsection{Operator chaining}\label{generalChaining} \emph{Operator chaining} allows to combine two or more operators on the command line into a single {\CDO} call. This allows the creation of complex operations out of more simple ones: reductions over several dimensions, file merges and all kinds of analysis processes. All operators with a fixed ... ... @@ -41,7 +42,6 @@ Operator chaining is implemented over POSIX Threads (pthreads). Therefore this {\CDO} feature is not available on operating systems without POSIX Threads support! \subsection{Chaining Benefits} Combining operators can have several benefits. The most obvious is a performance increase through reducing disk I/O: ... ... @@ -60,8 +60,6 @@ files can have a big influence on the overall performance.\\ A second aspect is the execution of operators: Limited by the algorythms potentially all operators of a chain can run in parallel. \section{Advanced Usage} In this section we will introduce advanced features of {\CDO}. These include operator grouping which allows to write more complex {\CDO} calls and the apply keyword which allows to shorten calls that ... ... @@ -70,7 +68,7 @@ for file signatures. These features have several restrictions and follow rules t input/output properties. These required properties of operators can be investigated with the following commands: \begin{verbatim} cdo --attribs [arbitrary/filesOnly/onlyFirst/noOutput/obase] [operatorName]? cdo --attribs [arbitrary/filesOnly/onlyFirst/noOutput/obase] \end{verbatim} \begin{itemize} ... ...
 ... ... @@ -54,6 +54,8 @@ The main {\CDO} features are: \input{usage} \input{cdo_advanced_usage} \input{grid} \input{zaxis} ... ...
 ... ... @@ -70,7 +70,7 @@ prompt> cat mypartab out_name = ta standard_name = air_temperature units = "K" missing_value = 1e+20 missing_value = 1.0e+20 valid_min = 157.1 valid_max = 336.3 / ... ... @@ -81,7 +81,7 @@ To apply this parameter table to a dataset use: cdo -f nc cmorlite,mypartab,convert infile outfile @EndVerbatim This command renames the variable @boldtt{t} to @boldtt{ta}. The standard name of this variable is set to @boldtt{air_temperature} and the unit is set to [@boldtt{K}] (converts the unit if necessary). The missing value will be set to @boldtt{1e+20}. the unit is set to [@boldtt{K}] (converts the unit if necessary). The missing value will be set to @boldtt{1.0e+20}. In addition it will be checked whether the values of the variable are in the range of @bold{157.1} to @boldtt{336.3}. The result will be stored in NetCDF. @EndExample
 ... ... @@ -81,7 +81,7 @@ prompt> cat mypartab out_name = ta standard_name = air_temperature units = "K" missing_value = 1e+20 missing_value = 1.0e+20 valid_min = 157.1 valid_max = 336.3 / ... ... @@ -92,7 +92,7 @@ To apply this parameter table to a dataset use: cdo setpartabn,mypartab,convert infile outfile @EndVerbatim This command renames the variable @bold{t} to @bold{ta}. The standard name of this variable is set to @bold{air_temperature} and the unit is set to [@bold{K}] (converts the unit if necessary). The missing value will be set to @bold{1e+20}. the unit is set to [@bold{K}] (converts the unit if necessary). The missing value will be set to @bold{1.0e+20}. In addition it will be checked whether the values of the variable are in the range of @bold{157.1} to @bold{336.3}. @EndExample
 ... ... @@ -155,8 +155,6 @@ There are more than 700 operators available. A detailed description of all operators can be found in the \textbf{\htmlref{Reference Manual}{refman}} section. \input{cdo_advanced_usage} \subsection{Parallelized operators} Some of the {\CDO} operators are shared memory parallelized with OpenMP. ... ...
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