We have a customer requirement that is asking to plot in a Sparkline a “line” where each data point represent year/month … given that we do not have a type that store data related to year/month ( and I would avoid to create it ) - any suggestion about how to accomplish the requirement?

# Plot year/month in a Sparkline

**bachr**#2

assuming you have a metric `SomeMetric`

that generates your original data points, you can have metric like:

```
"expression": "sum(eval('YEAR', SomeMetric)) / sum(eval('MONTH', SomeMetric))"
```

then simply use this new metric to display in the chart.

**marcosordi**#3

I was not clear describing the requirement - they want to plot something like :

201701 201702 201703

----*---------------------*-------------------------*-----------------------------

So basically a timeseries where each data point is the concatenation of year and month starting from 9 years ago

**bachr**#4

oh I see, you can manually construct the timeseries, you have the `start`

and `end`

and the interval would be `month`

, or try using the `timeComponent`

expression function in a metric.