Changeset 40 for trunk/CrossPare/src/de/ugoe/cs/cpdp/dataprocessing/LogarithmTransform.java

Timestamp:

09/17/15 13:46:16 (9 years ago)

Author:

atrautsch

Message:

logarithmtransform -1*value bei negativen Wwerten, MedianAsReference? an Camargo Cruz Paper angepasst

File:

• trunk/CrossPare/src/de/ugoe/cs/cpdp/dataprocessing/LogarithmTransform.java (modified) (4 diffs)

trunk/CrossPare/src/de/ugoe/cs/cpdp/dataprocessing/LogarithmTransform.java

@@ -35 +35 @@
                         Instance instance = testdata.instance(i);
                         for( int j=0 ; j<testdata.numAttributes() ; j++ ) {
-                                if( testdata.attribute(j)!=classAttribute ) {
-                                        instance.setValue(j, Math.log(1+instance.value(j)));
+                                if( testdata.attribute(j)!=classAttribute && testdata.attribute(j).isNumeric() ) {
+                                        if( instance.value(j) < 0 ) {
+                                                instance.setValue(j, (-1*(Math.log(-1*instance.value(j)))));
+                                        }else {
+                                                instance.setValue(j, Math.log(1+instance.value(j)));
+                                        }
                                 }
                         }
@@ -46 +50 @@
                                 Instance instance = traindata.instance(i);
                                 for( int j=0 ; j<testdata.numAttributes() ; j++ ) {
-                                        if( testdata.attribute(j)!=classAttribute ) {
-                                                instance.setValue(j, Math.log(1+instance.value(j)));
+                                        if( traindata.attribute(j)!=classAttribute && traindata.attribute(j).isNumeric() ) {
+                                                if( instance.value(j) < 0 ) {
+                                                        instance.setValue(j, (-1*(Math.log(-1*instance.value(j)))));
+                                                }else {
+                                                        instance.setValue(j, Math.log(1+instance.value(j)));
+                                                }
                                         }
                                 }
@@ -65 +73 @@
                         Instance instance = testdata.instance(i);
                         for( int j=0 ; j<testdata.numAttributes() ; j++ ) {
-                                if( testdata.attribute(j)!=classAttribute ) {
-                                        instance.setValue(j, Math.log(1+instance.value(j)));
+                                if( testdata.attribute(j)!=classAttribute && testdata.attribute(j).isNumeric() ) {
+                                        if( instance.value(j) < 0 ) {
+                                                instance.setValue(j, (-1*(Math.log(-1*instance.value(j)))));
+                                        }else {
+                                                instance.setValue(j, Math.log(1+instance.value(j)));
+                                        }
                                 }
                         }
@@ -75 +87 @@
                         Instance instance = traindata.instance(i);
                         for( int j=0 ; j<testdata.numAttributes() ; j++ ) {
-                                if( testdata.attribute(j)!=classAttribute ) {
-                                        instance.setValue(j, Math.log(1+instance.value(j)));
+                                if( traindata.attribute(j)!=classAttribute && traindata.attribute(j).isNumeric() ) {
+                                        if( instance.value(j) < 0 ) {
+                                                instance.setValue(j, (-1*(Math.log(-1*instance.value(j)))));
+                                        }else {
+                                                instance.setValue(j, Math.log(1+instance.value(j)));
+                                        }
                                 }
                         }