Many thanks - I will apply your suggestions in my production code and see 
how it goes.

On Friday, 16 October 2020 at 20:38:45 UTC+1 Daniel LaLiberte wrote:

> The 'annotationText' seems to not be working, however.  Maybe this 
> particular way of rendering the annotation interferes with showing the 
> annotationText (which is like a tooltip for the annotation). Changing it to 
> 'tooltip' at least shows that the text is in the data.
>
> On Fri, Oct 16, 2020 at 3:33 PM Daniel LaLiberte <[email protected]> 
> wrote:
>
>> Hi David,
>>
>> Your chart works fine if you include all your data columns in the 
>> DataView columns.   Here it is with the necessary change:   
>> https://jsfiddle.net/dlaliberte/cvu3t7se/6/
>>
>> On Fri, Oct 16, 2020 at 11:40 AM David Hyde <[email protected]> 
>> wrote:
>>
>>> Hi. Have a look at https://jsfiddle.net/DavidHyde/fkuonb5s/. This is 
>>> based on an example from the Google Charts documentation along with the 
>>> code that I'm running. I didn't write the code and am not a Charts expert 
>>> by any means, so don't understand all the code yet, but I'm getting to 
>>> grips with the data definition format.
>>>
>>> Anyway, I'm having trouble combining the style, interval and certainty 
>>> roles. It seems that I can apply any one, but when I have two or more, only 
>>> the first is applied.
>>>
>>> Specifying "certainty" gives this:
>>>
>>>
>>> <https://i.stack.imgur.com/oyi2D.png>
>>>
>>> Applying "style" gives this:
>>>
>>>
>>> <https://i.stack.imgur.com/mDYFW.png>
>>>
>>> and this is just "interval"
>>>
>>>
>>> <https://i.stack.imgur.com/MGKyl.png>
>>>
>>> What I really want to do is apply the certainty role for the hatching, 
>>> and the interval role for the horizontal bar.
>>>
>>> Can anyone help? Thanks
>>>
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>>> .
>>>
>>
>>
>> -- 
>> Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>
>> [email protected]   Cambridge MA
>>
>>
>
> -- 
> Daniel LaLiberte <https://plus.google.com/100631381223468223275?prsrc=2>
> [email protected]   Cambridge MA
>
>

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