Plot view

Hi,

I am using the graph in rapidminer to try visualize my data.

I created a process and the data view shows:

Year       Staff       MC

2013      A001      1

2013      A001       2

2014     A002        4

2015     A003        5

2016     A004        6

2017    A002         3

Example: I am trying to show a chart the average MC was taken for each year. Below is the output chart I got.

Questions:

1. I have value for 2016 and 2017, why there is no bar showing?
2. For 2013, I have a total of 93 counts and the MC sum value is 374. The value should it not be 374/93 = 4.0215?
3. Is there any function that can show what is the value of the bar? Eg. roll over the mouse on the bar?
4. Does all the attribute needs to be converted to nominal type for the chart to work?

Thanks.

Chart: