Rounding in chart with by clause

[cmeo]

I've just encountered a strange thing that doesn't seem to be covered by an Answer or the docs.
If I have a chart command without a 'by' clause, the standard method of rounding works:

[search]| chart avg(thruput_hr) as Thruput over "Run Date"  | eval Thruput=round(Thruput,2)

Results:
04/13 19.20
04/15 36.32
04/16 47.18
etc. as expected.

but if I add a by clause, it doesn't:

[search]| chart avg(thruput_hr) as Thruput over "Run Date" by year | eval Thruput=round(Thruput,2)

Results:
04/13 19.2

04/15 41.538461538 31.099
04/16 59.19 35.17241379

04/17 40.434782609 32.09
etc.

Is this WAD and I missed something, or is there a bug? Is there a way to do the rounding I want with chart?

[dineshraj9 · Accepted solution]

If you check the statistics tab after adding by clause you will notice that there is no field called "Thruput". You can round off all fields this way.

[search]| chart avg(thruput_hr) over "Run Date" by year | foreach * [eval <<FIELD>>=round('<<FIELD>>',2)]

[cmeo]

Yeah thought it might be something like that because I did notice that 'Thruput' wasn't listed. Interesting though, that it can be rounded even though it's hiding. Well, that's show business.