Description:
This graph combines histograms and scatter plot.The marginal distributions of the two variables are displayed by the histogram.
Create left histogram by column(B), and merge the graph with scatter plot. Arrange the layers as one row and two columns in Graph Manipulation dialog
Then set column (A) as Y and create top histogram by column (A) . Merge top histogram graph with the previous graph again. Arrange the layers as tow rows and one column in Graph Manipulation dialog.
In Origin, you can add a histogram of each margin to the plot through Merge Graph.