MATLAB: Cells merging in table

Question

Hello

Here is a complex problem:

I need to merge cells inside table (vertcat), by following several rules

There are should be three oiptions inside how to merge

a) by var1: for example if var1=="A" then merge all data after it. (same for var1=="B")

b) by var1 && var2 : for example if var1=="A" && var2=="1" then merge all data (same for all unique variants)

c) by var1 && var2 && var3 : for example if var1=="B" && var2 =="2" && var3=="30" then merge data

I don't know if it's clear, if not please ask question.

Is it possible write same code for all situations?

P.S. I want avoid nested loops, andsomehow create indexes array or something like this

Answer 1

a)

varfun(@(c) {vertcat(c{:})}, table1, 'GroupingVariables', 'Var1', 'InputVariables', 5:width(table1))

b)

varfun(@(c) {vertcat(c{:})}, table1, 'GroupingVariables', {'Var1', 'Var2'}, 'InputVariables', 5:width(table1))

c)

varfun(@(c) {vertcat(c{:})}, table1, 'GroupingVariables', {'Var1', 'Var2', 'Var3'}, 'InputVariables', 5:width(table1))