Dear All,
I wish to plot all my predictions made in my SlidingWindowValidation.
Currently I can only plot the predictions made in the FIRST iteration of the SlidingWindowValidation!
To plot the FIRST iteration I have to:
Set a breakpoint in RegressionPerformance.
Click on:
DataTable Tab.
PlotView
Plotter: Series
Index Dimension: Date
Plot series: [single_price, prediction(single_price)]
(A lot of work, would be nice if this could be automated)
Now how can I plot all predictions made in a sliding my SlidingWindowValidation.
I figured on each iteration I could write the datasets the comes out of ModelApplier to a new dataset.
The problem is CSVExampleSetWriter overwrites the old results.csv on each iteration!
Is there any way to make it append, instead of overwrite?
Regards,
Wessel
Example XML
Yes I know this is not the way to predict single_price.
But this should be the way to evaluate the performance of the prediction.
<operator name="Root" class="Process" expanded="yes">
<operator name="SalesExampleSetGenerator" class="SalesExampleSetGenerator">
<parameter key="number_examples" value="1500"/>
</operator>
<operator name="FeatureValueTypeFilter" class="FeatureValueTypeFilter">
</operator>
<operator name="ChangeAttributeRole" class="ChangeAttributeRole">
<parameter key="name" value="single_price"/>
<parameter key="target_role" value="label"/>
</operator>
<operator name="SlidingWindowValidation" class="SlidingWindowValidation" expanded="yes">
<parameter key="training_window_width" value="240"/>
<parameter key="test_window_width" value="24"/>
<parameter key="horizon" value="24"/>
<parameter key="average_performances_only" value="false"/>
<operator name="LinearRegression" class="LinearRegression">
</operator>
<operator name="OperatorChain" class="OperatorChain" expanded="yes">
<operator name="ModelApplier" class="ModelApplier">
<parameter key="keep_model" value="true"/>
<list key="application_parameters">
</list>
</operator>
<operator name="make transaction_id regular" class="ChangeAttributeRole">
<parameter key="name" value="transaction_id"/>
</operator>
<operator name="write to results" class="CSVExampleSetWriter">
<parameter key="csv_file" value="D:\wessel\Desktop\results.csv"/>
<parameter key="column_separator" value=","/>
</operator>
<operator name="RegressionPerformance" class="RegressionPerformance" breakpoints="after">
<parameter key="keep_example_set" value="true"/>
<parameter key="absolute_error" value="true"/>
<parameter key="correlation" value="true"/>
</operator>
</operator>
</operator>
</operator>
