Multiple yAxis in same plot?

[Carlos Gálvez]

Hey guys, I'm here again with a pyqt-graph question. I want to do a BarGraph with the same xAxis but two different yAxis (left and right) related to the same values. For example in the left yAxis the % and in the right axis the values. So the left axis must be [0,1] and the right [0, yMax]. I've done some work on this but I'm stuck. In the following code I make two bargraphitem and I thinks that's not what I want. 

        resultWindow = pg.plot()

        resultWindow.setBackground('w')

        resultWindow.setXRange(0,16, 0.05)

        resultWindow.setYRange(0, 1, 0.05)

        plot1 = resultWindow.getPlotItem()

        plot1.showGrid(True, True)

        

       

        plot2 = pg.ViewBox()

        plot1.showAxis('right')

        plot1.scene().addItem(plot2)

        plot1.getAxis('right').linkToView(plot2)

        plot2.setXLink(plot1)

        plot1.getAxis('right').setLabel('Frecuencia')

    

        probabilities = [0,0, 0.5, 0.5]

        bargraph = pg.BarGraphItem(x=range(pow(2,qbits)), height = probabilities, width = 0.6, brush ='g')

        bargraph2 = pg.BarGraphItem(x=range(pow(2,qbits)), height = [0,0,100,100], width = 0.6, brush = 'r')

        plot1.addItem(bargraph)

        plot2.addItem(bargraph2)

        #updateViews()

        #plot1.vb.sigResized.connect(updateViews)

        

        titleLabel = QLabel("Histograma \n")

        vLayout = QVBoxLayout()

        vLayout.setContentsMargins(5,5,5,5)

        vLayout.addWidget(titleLabel)

        vLayout.addWidget(resultWindow)

        resultDialog.setLayout(vLayout)

Thanks in advance.