Differences

This shows you the differences between two versions of the page.

--- calculate_r_expression [2018/09/03 14:29]
francisco [R Script Outputs]
+++ calculate_r_expression [2018/09/18 14:13]
francisco [Tables / Lookup Tables]
@@ Line 99: / Line 99: @@
   * A [[Lookup Table Type|Lookup Table]] requires //2// number vectors, one for the "Keys" and another for the "Values". Both vectors must have the same number of elements.
-  * The ''outputTable'' function requires a table, that can be construct with [[http://www.r-tutor.com/r-introduction/data-frame | data.frame]] R function. Tt has an optional parameter too, to put how many Key columns the table has, from the leftmost column, the default value of it is 1.
+  * The ''outputTable'' function requires a table, that can be constructed with [[http://www.r-tutor.com/r-introduction/data-frame | data.frame]] R function. There is another parameter that is optional with default value 1, and it means how many Key columns the table has, from the leftmost column.
 <note important>Notice the use of the stringAsFactors = FALSE flag. This flag prevents R from converting the passed strings to Factors(numbers).</note>
@@ Line 108: / Line 108: @@
 === Lookup Tables ===
-Lookup Tables are transferred to R as a List with two columns, "Keys" and "Values".
+Lookup Tables are transferred to R as a List with two columns, "Key" and "Value".
 Each column can be individually accessed by using the ''$'' operator, for example:
-  * ''t1$Keys[ 1 ]'' will access the first key of the Lookup Table ''t1''.
+  * ''t1$Key[ 1 ]'' will access the first key of the Lookup Table ''t1''.
-  * ''t2$Values[ 2 ]'' will access the second value of the Lookup Table ''t2''
+  * ''t2$Value[ 2 ]'' will access the second value of the Lookup Table ''t2''
 === Tables ===
@@ Line 128: / Line 128: @@
 Expression:
 <code rsplus>
-for ( i in 1:length( t1$Values ) ) {
+for ( i in 1:length( t1$Value ) ) {
-  tempValue <- t1$Values[ i ];
+  tempValue <- t1$Value[ i ];
-  t1$Values[ i ] = tempValue * tempValue;
+  t1$Value[ i ] = tempValue * tempValue;
 }
-outputLookupTable( "poweredTable", t1$Keys, t1$Values );
+outputLookupTable( "poweredTable", t1$Key, t1$Value );
 </code>
@@ Line 142: / Line 142: @@
 Expression:
 <code rsplus>
-tableMean <- mean( t1$Values );
+tableMean <- mean( t1$Value );
 print( paste( "Mean is", tableMean ) );
 outputDouble( "mean", tableMean );
 </code>
-Noticed the ''print()'' statement? Dinamica EGO's Message Log will show output messages from the R script (as Result's).
+Noticed the ''print()'' statement? Dinamica EGO's Message Log will show output messages from the R script (as Result's).<note warning>If the Message Log level is Unconditional, the messages will not be printed.</note>
 ==== Plot passed Lookup Table to an image on the path specified by passed String ====