Feature request: Implement removeAboveValue, removeBelowValue and transformNull to filter/transform the data

[gelonsoft]

I'm submitting a ...

• Bug report
• Feature requestdd
• Question / Support request

Implement removeAboveValue, removeBelowValue and transformNull functions like in Graphite ( http://graphite.readthedocs.io/en/latest/functions.html )

removeAboveValue - replace value with NULL if value > N
removeBelowValue - replace value with NULL if value < N;
transformNull - replace null values with N

Example of removeAboveValue(N):

• Input series (";" as separator): 0;1;2;3;4;5;6
• Function definition: "removeAboveValue(3)"
• Output series: 0;1;2;3;null;null;null

Example of removeBelowValue(N)

• Input series (";" as separator): 0;1;2;3;4;5;6
• Function definition: "removeBelowValue(3)"
• Output series: null;null;null;3;4;5;6

Example of transformNull(N):

• Input series (";" as separator): 0;null;2;null;4;null;6
• Function definition: "transformNull(3)"
• Output series: 0;3;2;3;4;3;6

[danielkucera]

Hi @alexanderzobnin , are you planning to tag a new release with these features any soon?

[alexanderzobnin]

Yes, I'm going to release new version in next few days.