Sumarrize rows

Hi  ThiagoRosa ,

Try below codes:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMlTSUXIEYgMgNoQSsTrRSkZQcSOQmDGShDFUAixmgiRhAmQ6wcRMkSRMoRJgMTOYRCwA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [ID = _t, Type = _t, Start = _t, End = _t, Interval = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"ID", Int64.Type}, {"Type", type text}, {"Start", Int64.Type}, {"End", Int64.Type}, {"Interval", Int64.Type}}),
    Custom1 = Table.TransformRows(
    #"Changed Type",
    each let 
    mid = Table.Max(Table.SelectRows(#"Changed Type",(x)=>x[Type]=[Type]),"ID")[ID],
    res = 
    if [ID]<>mid 
    then let nextrow = Table.SelectRows(#"Changed Type",(y)=>y[ID]=[ID]+1) in 
    if [Start]+[Interval]=List.Sum(nextrow[Start])
    then let tab = Table.SelectRows(#"Changed Type",(z)=>z[ID]=[ID] or z[ID]=[ID]+1) in 
    [ID=[ID],Type=[Type],Start=List.Min(tab[Start]),End=List.Max(tab[End]),Interval=List.Sum(tab[Interval])] 
    else _
    else [ID=null,Type=null,Start=null,End=null,Interval=null]
    in 
    res
  
),
    #"Converted to Table" = Table.FromList(Custom1, Splitter.SplitByNothing(), null, null, ExtraValues.Error),
    #"Expanded Column1" = Table.ExpandRecordColumn(#"Converted to Table", "Column1", {"ID", "Type", "Start", "End", "Interval"}, {"ID", "Type", "Start", "End", "Interval"}),
    #"Filtered Rows" = Table.SelectRows(#"Expanded Column1", each ([ID] <> null)),
    #"Removed Columns" = Table.RemoveColumns(#"Filtered Rows",{"ID"}),
    #"Added Index" = Table.AddIndexColumn(#"Removed Columns", "ID", 1, 1, Int64.Type),
    #"Reordered Columns" = Table.ReorderColumns(#"Added Index",{"ID", "Type", "Start", "End", "Interval"}),
    #"Changed Type1" = Table.TransformColumnTypes(#"Reordered Columns",{{"ID", Int64.Type}, {"Type", type text}, {"Start", Int64.Type}, {"End", Int64.Type}})
in
    #"Changed Type1"

And you will see:

You could also do it in dax,create 4 columns as below:

Column = 
var _nextstart=CALCULATE(MAX('Table (2)'[Start]),FILTER('Table (2)','Table (2)'[ID]=EARLIER('Table (2)'[ID])+1&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))
var _nextend=CALCULATE(MAX('Table (2)'[End]),FILTER('Table (2)','Table (2)'[ID]=EARLIER('Table (2)'[ID])+1&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))
var _previousstart=CALCULATE(MAX('Table (2)'[Start]),FILTER('Table (2)','Table (2)'[ID]=EARLIER('Table (2)'[ID])-1&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))
var _previousend=CALCULATE(MAX('Table (2)'[End]),FILTER('Table (2)','Table (2)'[ID]=EARLIER('Table (2)'[ID])-1&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))
Return
IF(_nextstart<>BLANK()||_nextend<>BLANK(),
IF('Table (2)'[Start]=_nextstart-'Table (2)'[Interval]&&'Table (2)'[End]=_nextend-'Table (2)'[Interval],1,0),
IF(_nextstart=BLANK()||_nextend=BLANK(),
IF('Table (2)'[Start]=_previousstart+'Table (2)'[Interval]&&'Table (2)'[End]=_previousend+'Table (2)'[Interval],1,0)))

_Start = 
CALCULATE(MIN('Table (2)'[Start]),FILTER('Table (2)','Table (2)'[Column]=EARLIER('Table (2)'[Column])&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))

_End = 
CALCULATE(MAX('Table (2)'[End]),FILTER('Table (2)','Table (2)'[Column]=EARLIER('Table (2)'[Column])&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))

_Interval = CALCULATE(SUM('Table (2)'[Interval]),FILTER('Table (2)','Table (2)'[Column]=EARLIER('Table (2)'[Column])&&'Table (2)'[Type]=EARLIER('Table (2)'[Type])))

And you will see:

 

For the related .pbix file,pls see attached.

 

Best Regards,
Kelly

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ThiagoRosa 

check this solution