Visualization not appearing?

[Hartmannish]

I'm trying to make visualizations appear. A simple column or bar chart. My search works exactly as intended (a series of columns for numbers and percent across spans of one day). But I can't get any visualizations anymore. What did I do, and is there a way to get back visualizations while also keeping my table?

host=server* Identifier=name EventType=various* EventType!=not_those 
| rex "(?<DeviceId>[0-9a-zA-Z]+)\s+event" 
| bucket _time span=1d
| eventstats dc(DeviceId) AS all_visitors by _time
| search (EventType="type1" OR EventType="type2" OR EventType="type3") 

| stats first(all_visitors) AS all_visitors dc(DeviceId) AS dc_event_type by EventType, _time

| eval one=if(EventType="type1", dc_event_type, " ") 
| eval two=if(EventType="type2", dc_event_type, " ") 
| eval three=if(EventType="type3", dc_event_type, " ") 

| eval percentage=round(dc_event_type/all_visitors*100,2) 

| eval one%=if(EventType="type1", percentage, " ") 
| eval two%=if(EventType="type2", percentage, " ") 
| eval three%=if(EventType="type3", percentage, " ") 

| timechart span=1d values(all_visitors) AS "Everybody" 

values(one) AS "one" values(two) AS "two" values(three) AS "three" 

values(one%) AS "one %" values(two%) AS "two %" values(three%) AS "three %"

[woodcock]

You cannot timechart a multi-value field which is what values creates (think about the Y-axis and how it works). if you change it to something that generates a single-value number field, then it will show in the visualization. For example, if you change each values to count then your visualization will work.

[Hartmannish]

Thanks for the explanation. I guess this means there isn't much to do? Since, changing values to count doesn't give my table the values I need. Maybe using eval somehow turns in into single-value fields? I tried, but only the first column is kept, if I do like this:
| timechart span=1d eval(round(values(all_visitors),2)) AS "Everybody"
eval(round(values(all_visitors,2)) AS "one"... and so on

[woodcock]

I was not suggesting that changing values to stats would achieve your end goal but only that it would demonstrate what was blocking the visualization. I assume that it did exactly that and now that this question is resolved (why no visualization), perhaps you should back all the way up and describe exactly what you are trying to accomplish and I am sure there is a way to do it. This should include some sample data and some kind mockup of the desired output. This should probably be in another (new) question.