Statistics Example 5/pt

Outro meta-comando para Regressão Linear

Cria o meta-comando que computa a regressão linear. Veja também o Métrico do Exemplo 4

Esse exemplo usa o Event_Labels para definir o intervalo

Pipeline

! O número de valores de dados é o número de quadros entre evento mais 1

Metric_Frames_Between_Events

/RESULT_METRIC_NAME=N

/RESULT_METRIC_FOLDER=REGRESSION

/EVENT_SEQUENCE=START+END

/EXCLUDE_EVENTS=

/GENERATE_MEAN_AND_STDDEV=FALSE

! /APPEND_TO_EXISTING_VALUES=FALSE

;

Add_Constant_To_Signals

/SIGNAL_TYPES=METRIC

/SIGNAL_NAMES=N

/SIGNAL_FOLDER=REGRESSION

! /RESULT_NAMES=

! /RESULT_TYPES=

/RESULT_FOLDER=REGRESSION

! /RESULT_SUFFIX=

! /SIGNAL_COMPONENTS=

/CONSTANT=1

;

! Chama o meta-comando

linear_regression_with_events

/SIGNALX=TARGET::ORIGINAL::LA::X

/SIGNALY=TARGET::ORIGINAL::LA::Y

/RESULT_NAME=RESULT

/RESULT_FOLDER=REGRESSION

/EVENT_SEQUENCE=START+END

! /EXCLUDE_EVENTS=

;

! pega o primeiro e ultimo valor do primeiro sinal

Metric_Signal_Value_At_Event

/RESULT_METRIC_NAME=START

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=TARGET

/SIGNAL_NAMES=LA

! /SIGNAL_FOLDER=ORIGINAL

/EVENT_NAME=START

/GENERATE_MEAN_AND_STDDEV=FALSE

! /APPEND_TO_EXISTING_VALUES=FALSE

! /GENERATE_VECTOR_LENGTH_METRIC=FALSE

/RETAIN_NO_DATA_VALUES=FALSE

;

Metric_Signal_Value_At_Event

/RESULT_METRIC_NAME=END

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=TARGET

/SIGNAL_NAMES=LA

! /SIGNAL_FOLDER=ORIGINAL

/EVENT_NAME=END

/GENERATE_MEAN_AND_STDDEV=FALSE

! /APPEND_TO_EXISTING_VALUES=FALSE

! /GENERATE_VECTOR_LENGTH_METRIC=FALSE

! /RETAIN_NO_DATA_VALUES=FALSE

;

! computa o primeiro e ultimo valor do segundo sinal

Evaluate_Expression

/EXPRESSION=METRIC::REGRESSION::START::X

/RESULT_NAME=STARTX

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=METRIC::REGRESSION::END::X

/RESULT_NAME=ENDX

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=METRIC::REGRESSION::RESULT::X+METRIC::REGRESSION::RESULT::Y*METRIC::REGRESSION::STARTX

/RESULT_NAME=STARTY

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=METRIC::REGRESSION::RESULT::X+METRIC::REGRESSION::RESULT::Y*METRIC::REGRESSION::ENDX

/RESULT_NAME=ENDY

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=LIST(VECTOR(METRIC::REGRESSION::STARTX,METRIC::REGRESSION::STARTY),VECTOR(METRIC::REGRESSION::ENDX,METRIC::REGRESSION::ENDY))

/RESULT_NAME=RESULT_LINE

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

! remove sinais temporários

Remove_Signals

/SIGNAL_TYPES=METRIC

/SIGNAL_NAMES=STARTX+STARTY+ENDX+ENDY

/SIGNAL_FOLDER=REGRESSION

;

Dados

Um exemplo de gráfico desse dada é:

Meta-Command

! BEGIN_META

! META_CMD_NAME= Linear_Regression_with_events

! META_PARAM= SIGNALX  : string ::yes

! META_PARAM= SIGNALY  : string ::yes

! META_PARAM= RESULT_NAME  : string ::yes

! META_PARAM= RESULT_FOLDER : string ::yes

! META_PARAM= EVENT_SEQUENCE  : string ::yes

! META_PARAM= EXCLUDE_EVENTS : string ::yes

! END_META

! Cria Variáveis Temporárias

Set_Pipeline_Parameter

/PARAMETER_NAME=NAME

/PARAMETER_VALUE=::RESULT_NAME

;

Set_Pipeline_Parameter

/PARAMETER_NAME=FOLDER

/PARAMETER_VALUE=::RESULT_FOLDER

;

Evaluate_Expression

/EXPRESSION=::SIGNALX

/RESULT_NAME=TEMPX

/RESULT_TYPE=DERIVED

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=::SIGNALY

/RESULT_NAME=TEMPY

/RESULT_TYPE=DERIVED

/RESULT_FOLDER=REGRESSION

;

Metric_Sum

/RESULT_METRIC_NAME=SUMX

/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=DERIVED

/SIGNAL_NAMES=TEMPX

/SIGNAL_FOLDER=REGRESSION

/SIGNAL_COMPONENTS=X

/EVENT_SEQUENCE=::EVENT_SEQUENCE

/EXCLUDE_EVENTS=::EXCLUDE_EVENTS

/GENERATE_MEAN_AND_STDDEV=FALSE

/APPEND_TO_EXISTING_VALUES=FALSE

;

Metric_Sum

/RESULT_METRIC_NAME=SUMY

/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=DERIVED

/SIGNAL_NAMES=TEMPY

/SIGNAL_FOLDER=REGRESSION

/SIGNAL_COMPONENTS=X

/EVENT_SEQUENCE=::EVENT_SEQUENCE

/EXCLUDE_EVENTS=::EXCLUDE_EVENTS

/GENERATE_MEAN_AND_STDDEV=FALSE

/APPEND_TO_EXISTING_VALUES=FALSE

;

Evaluate_Expression

/EXPRESSION=DERIVED::REGRESSION::TEMPX*DERIVED::REGRESSION::TEMPY

/RESULT_NAME=XY

/RESULT_TYPE=DERIVED

/RESULT_FOLDER=REGRESSION

;

Metric_Sum

/RESULT_METRIC_NAME=SUMXY

/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=DERIVED

/SIGNAL_NAMES=XY

/SIGNAL_FOLDER=REGRESSION

/SIGNAL_COMPONENTS=X

/EVENT_SEQUENCE=::EVENT_SEQUENCE

/EXCLUDE_EVENTS=::EXCLUDE_EVENTS

/GENERATE_MEAN_AND_STDDEV=FALSE

/APPEND_TO_EXISTING_VALUES=FALSE

;

Evaluate_Expression

/EXPRESSION=DERIVED::REGRESSION::TEMPX*DERIVED::REGRESSION::TEMPX

/RESULT_NAME=XX

/RESULT_TYPE=DERIVED

/RESULT_FOLDER=REGRESSION

;

Metric_Sum

/RESULT_METRIC_NAME=SUMXX

/APPLY_AS_SUFFIX_TO_SIGNAL_NAME=FALSE

/RESULT_METRIC_FOLDER=REGRESSION

/SIGNAL_TYPES=DERIVED

/SIGNAL_NAMES=XX

/SIGNAL_FOLDER=REGRESSION

/SIGNAL_COMPONENTS=X

/EVENT_SEQUENCE=::EVENT_SEQUENCE

/EXCLUDE_EVENTS=::EXCLUDE_EVENTS

/GENERATE_MEAN_AND_STDDEV=FALSE

/APPEND_TO_EXISTING_VALUES=FALSE

;

Evaluate_Expression

/EXPRESSION=(METRIC::REGRESSION::N*METRIC::REGRESSION::SUMXY-METRIC::REGRESSION::SUMX*METRIC::REGRESSION::SUMY)/(METRIC::REGRESSION::N*METRIC::REGRESSION::SUMXX-METRIC::REGRESSION::SUMX^2)

/RESULT_NAME=SLOPE

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

Evaluate_Expression

/EXPRESSION=(METRIC::REGRESSION::SUMY-METRIC::REGRESSION::SLOPE*METRIC::REGRESSION::SUMX)/METRIC::REGRESSION::N

/RESULT_NAME=INTERCEPT

/RESULT_TYPE=METRIC

/RESULT_FOLDER=REGRESSION

;

! cria o sinal métrico resultante que contém a inclinação e o intercepto

Evaluate_Expression

/EXPRESSION=VECTOR(METRIC::REGRESSION::INTERCEPT,METRIC::REGRESSION::SLOPE)

/RESULT_NAME=::NAME

/RESULT_TYPE=METRIC

/RESULT_FOLDER=::FOLDER

;

! limpa os sinais temporariamente

! se você quer ver os sinais temporários apra depuração

! comente esse próximo comando

Remove_Signals

/SIGNAL_TYPES=DERIVED+DERIVED+DERIVED+DERIVED+METRIC+METRIC+METRIC+METRIC+METRIC+METRIC

/SIGNAL_NAMES=TEMPX+TEMPY+XX+XY+SLOPE+INTERCEPT+SUMX+SUMXX+SUMXY+SUMY

/SIGNAL_FOLDER=REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION+REGRESSION

;