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Hi
Can anyone please please tell me how to get a nice date time format in Hovertool.
I have a plot with beautifully formatted datetime on the x axis, but in the Hovertool the timestamp just comes up as a unix Epoch time, and I cannot find out how to format it.
Would be so grateful for advice
Cathy
Hi Cathy
I’ve used this workaround:
source = ColumnDataSource(df)
source.add(df[‘event_date’].apply(lambda d: d.strftime(‘%Y-%m-%d’)), ‘event_date_formatted’)
hover = HoverTool(
tooltips=[
(‘date’, ‘@event_date_formatted’),
]
)
It’s adding a new column to the ColumnDataSource called ‘event_date_formatted’ which is a string representation of df[‘event_date’], then uses that as a field in the tooltip. Here df is a Pandas DataFrame. You could achieve the same with a list and a map function.
Hope this helps.
Dennis
On Tue, Feb 16, 2016 at 2:36 PM Catmo catwhite@gmail.com wrote:
Hi
Can anyone please please tell me how to get a nice date time format in Hovertool.
I have a plot with beautifully formatted datetime on the x axis, but in the Hovertool the timestamp just comes up as a unix Epoch time, and I cannot find out how to format it.
Would be so grateful for advice
Cathy
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Hi Dennis
Thank you so much - that works perfectly!
Best wishes & blessings that all your software bugs get fixed in deserving good karma,
Cathy
On Wednesday, 17 February 2016 06:30:44 UTC, Dennis O’Brien wrote:
Hi Cathy
I’ve used this workaround:
source = ColumnDataSource(df)
source.add(df[‘event_date’].apply(lambda d: d.strftime(‘%Y-%m-%d’)), ‘event_date_formatted’)
hover = HoverTool(
tooltips=[
(‘date’, ‘@event_date_formatted’),
other attributes …
]
)
It’s adding a new column to the ColumnDataSource called ‘event_date_formatted’ which is a string representation of df[‘event_date’], then uses that as a field in the tooltip. Here
dfis a Pandas DataFrame. You could achieve the same with a list and a map function.
Hope this helps.
Dennis
On Tue, Feb 16, 2016 at 2:36 PM Catmo catw...@gmail.com wrote:
Hi
Can anyone please please tell me how to get a nice date time format in Hovertool.
I have a plot with beautifully formatted datetime on the x axis, but in the Hovertool the timestamp just comes up as a unix Epoch time, and I cannot find out how to format it.
Would be so grateful for advice
Cathy
–
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