History Graph Card plots a staircase for sensor and a spline for input_number

@GrahamS wrote:

Now at HA 0.108.3
As discussed here, sensor values are plotted as a staircase of values. I converted some sensors to input_number to retain their values after HA restart. I was surprised to discover the input_number values are plotted in a spline. I do not see a Lovelace option to control the plotting style so I created a template sensor for plotting based on the input_number value. This works.

  - platform: template
    sensors:
      furnace_power_plot:
        friendly_name: 'Furnace Power Plot'
        unit_of_measurement: 'kW'
        value_template: '{{ states.input_number.furnace_power.state}}'

Some people want to see the spline plot for a sensor. I do not see a template input_number for a similar workaround.

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