Merge two columns into one column?
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I have two columns that i want to merge into one column. Meaning i want
A=[123; 321] and
B=[456; 654] to be merged/combined into a new column
C=[123456; 321654]
I this possible?
采纳的回答
Thorsten
2015-12-1
C = 10.^ceil(log10(B)).*A + B;
5 个评论
pkh
2015-12-1
Image Analyst
2015-12-1
You didn't say that at first, so you got a solution for what you initially presented. Please give us all criteria. Like, can A be any number of digits? Is it always either 3 digit or 8 digit integers, or can it be any number of digits. Can it be double values with fractional parts to the right of the decimal point. If so, how many to the right of the decimal point do you want to include? It's always good to state these things up front otherwise you'll get what you ask for (though Thorsten did generalize it some) and spend more time arriving at a solution that you needed to.
And what's the use case for this? It seems like such an odd thing to do that it's probably just a homework assignment.
pkh
2015-12-1
You can use
format bank
to change the way the numbers are shown in the command window. Note that this doesn't affect your algorithms. unique will give the same results, regardless of how the numbers are actually displayed.
pkh
2015-12-1
更多回答（1 个）
>> A = [123,321,20001130];
>> B = [456,654,32378];
>> F = @(n)arrayfun(@int2str,n,'UniformOutput',false);
>> cellfun(@(a,b)str2double([a,b]),F(A),F(B))
ans =
123456 321654 2000113032378
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