I am new to Tableau but have rather simple visualization in need.
Suppose I have a table with 3 columns of, {Val_A, Err_Model_AB (in %), Err_Model_AC (in %)}, and 100 rows.
The parameter Val_A takes random values from [0,1] and the 'Err_Model's go from [-10:10].
Now I want a a side-by-side bar graph with:
x-axis: 'Bins' of Val_A with interval 0.1 (so 0-0.1, 0.1-0.2 .. 0.9-1)
y-axis: 'Count' of Values of Err_Model
side-by-side color: Red=Err_Model_AB , Green = Err_Model_AC
But Tableau does not understand this!
It lets me make a scatter plot of (Val_A vs. Err_Val_AB) & another one with Err_Val_B.
But what I want is count of all values of Err_Val_AB within the range of Val_A from 0-0.1, 0.1-0.2 .. 0.9-1. And similar side-by-side bar for Err_Val_AC
Any thoughts ? I don't mind shifting it to MATLAB or any other relatively easy infovis software.
Can you do the BINS? Not hard, right click the dimenstion, Create Bins, and you Bin size should be 0.1
Drag this Bin dimension to Column.
Now drag both Err_Model_AB and Err_Model_AC to Columns. If they're not already Count, right click them, measure, count.
Now go to show me, and select side-by-side bars.
And voilà, I think that's what you want