highcharts - How to show alone points, with {marker: {enabled: false}}? -

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in graphics have many points , set {marker: {enabled: false}} example 

    plotoptions: {         series: {             marker: {                 enabled: false                }             }         },

example

but, if graph points has nulls, graph hidden.

example

how show alone points, {marker: {enabled: false}} ?

in case when have null values, means "lines" between doesn't exist, , markers remain. when disable marks, series in not visible.


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