MATLAB: How to horizontally concatenate the cells of a cell array with different contents into a string.

horzcat

Hi All,
I have a cell array as the one below:
 EXTR =
20×3 cell array
    {[ 550]}    {[2]}    {'GAM'}
    {[ 600]}    {[2]}    {'GAM'}
    {[ 650]}    {[2]}    {'GAM'}
    {[ 700]}    {[2]}    {'GAM'}
    {[ 750]}    {[2]}    {'GAM'}
    {[ 800]}    {[2]}    {'GAM'}
    {[ 850]}    {[2]}    {'GAM'}
    {[ 900]}    {[2]}    {'GAM'}
    {[ 950]}    {[2]}    {'GAM'}
    {[1000]}    {[2]}    {'GAM'}
    {[1100]}    {[2]}    {'GAM'}
    {[1200]}    {[2]}    {'GAM'}
    {[1300]}    {[2]}    {'GAM'}
    {[1400]}    {[2]}    {'GAM'}
    {[1500]}    {[2]}    {'GAM'}
    {[1600]}    {[2]}    {'GAM'}
    {[1700]}    {[2]}    {'GAM'}
    {[1800]}    {[2]}    {'GAM'}
    {[1900]}    {[2]}    {'GAM'}
    {[2000]}    {[2]}    {'GAM'}
How is it possible to create a cell array that looks like this:
 EXTR =
20×3 cell array
    {'550 2 GAM'}
    {'600 2 GAM'}
    {'650 2 GAM'}
    .....
In words, I would like all my columns to be combined into one where their contents are a string with a single space between them.
I have tried things in the like of horzcat(EXTR{:}), however they are not working for this case, possibly because not all contents are of uniform type…
Thanks for your help in advance,
KMT.

Best Answer

c={{[ 550]}    {[2]}    {'GAM'}
    {[ 600]}    {[2]}    {'GAM'}}
c=cellfun(@string,c)
join(c)
command window:
>> COMMUNITY
c = 
    2×1 string array
      "550 2 GAM"
      "600 2 GAM"
>>
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