How to remove some part of the line graph?

[Newguy12]

Some of my line graph is flat because it has missing dates or the dates contain the same temperature data as previous dates. how do i remove them? 

[kpost]

two solutions.

1) The way I've dealt with situations like this is to create a measure that defaults to blank if the sum is zero.  (This is assuming you KNOW the data should never actually be zero... which, for a temperature readout seems feasible).

MEASURE = 
var line_value = COALESCE(SUM([value]), 0)
return
IF(line_value = 0 , BLANK(), line_value)

2)  If you are okay with the x axis skipping values, change it from "Continuous" to "categorical"