how to add and to remove cell arrays?

how to repeat thse cell arrays and make it 10*2 cell arrays ? and how to extract line 2 and put it as line 6

Properties = 5×2 cell array

{'Aluminium'} {[ 780]}

{'Steel' } {[ 30]}

{'Titanium' } {[430]}

{'Copper' } {[ 300]}

{'Wood' } {[ 900]}

Answer 1

[Image Analyst]

Try this, if ca is your cell array:

ca = [ca;ca]

Answer 2

[Voss]

Properties = { ...
    'Aluminium' 780; ...
    'Steel'      30; ...
    'Titanium'  430; ...
    'Copper'    300; ... 
    'Wood'      900; ...
    }

Properties = 5×2 cell array
    {'Aluminium'}    {[780]}
    {'Steel'    }    {[ 30]}
    {'Titanium' }    {[430]}
    {'Copper'   }    {[300]}
    {'Wood'     }    {[900]}

"how to repeat thse cell arrays and make it 10*2 cell arrays ?"

% maybe this
repmat(Properties,2,1)

ans = 10×2 cell array
    {'Aluminium'}    {[780]}
    {'Steel'    }    {[ 30]}
    {'Titanium' }    {[430]}
    {'Copper'   }    {[300]}
    {'Wood'     }    {[900]}
    {'Aluminium'}    {[780]}
    {'Steel'    }    {[ 30]}
    {'Titanium' }    {[430]}
    {'Copper'   }    {[300]}
    {'Wood'     }    {[900]}

% or possibly this
repelem(Properties,2,1)

ans = 10×2 cell array
    {'Aluminium'}    {[780]}
    {'Aluminium'}    {[780]}
    {'Steel'    }    {[ 30]}
    {'Steel'    }    {[ 30]}
    {'Titanium' }    {[430]}
    {'Titanium' }    {[430]}
    {'Copper'   }    {[300]}
    {'Copper'   }    {[300]}
    {'Wood'     }    {[900]}
    {'Wood'     }    {[900]}

"how to extract line 2 and put it as line 6"

% (operating on the original cell array Properties now)
Properties(6,:) = Properties(2,:)

Properties = 6×2 cell array
    {'Aluminium'}    {[780]}
    {'Steel'    }    {[ 30]}
    {'Titanium' }    {[430]}
    {'Copper'   }    {[300]}
    {'Wood'     }    {[900]}
    {'Steel'    }    {[ 30]}

Answer 3

[Jash Kadu]

Hi!

To generate properties Run in the command window:

Properties = {'Aluminium', 780 ; 'Steel' , 30; 'Titanium' , 430; 'Copper', 300; 'Wood' , 900}

To make it a 10x2 cell array just run

a = cat(1,Properties, Properties)

PFA the attached screenshot.

Also check the concatenate array documentation to learn more : https://www.mathworks.com/help/matlab/ref/double.cat.html#mw_43eb23a4-8e47-434a-a0ce-36c64539934a