MATLAB: Convert variables from string to integers

conversionMATLAB

hi ,So im new to matlab and im trying to convert string to integers .The question is 'Convert all the numbers in the variables Oxygen, CarbonDioxide, Temperature, Pressure, SolarRadiation and Humidity from strings to integers.'

is using str2num correct?

Oxygen=str2num("Oxygen")
%and so on for the other varaibles

is this syntax correct as it produces an output(below) ?or should it contain values from the input data?

Oxygen =
     []

Best Answer

The assignment probably wants you to turn them into unsigned integers.

I leave the rest to you.

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MATLAB: Hi, there is a (1×6) vector that i want to extract values from. I used strings to pick-up the subtitle and now the problem is that i have to extract every value under the subtitle (e.g Oxygen). How to i extract those values without hardcoding

It would probably make a more sense to use the table data type instead of a string array that is parsed to separate variables.

a=["Oxygen"       "CarbonDioxide"    "Temperature"    "Pressure"     "SolarRadiation"
    "19.126323"    "2316.074"         "20.22159"       "100.55903"    "5.5317028e-05"
    "21.649558"    "1675.8466"        "19.700265"      "97.258761"    "4.7879645e-05"
    "21.365389"    "5137.8534"        "17.95304"       "100.52854"    "2.3418843e-05"
    "20.849494"    "4038.5941"        "20.266467"      "67.042816"    "6.0612875e-05"
    "20.435402"    "1735.1865"        "22.257325"      "74.053206"    "4.8704271e-05"
    "23.822268"    "3127.1723"        "21.121039"      "75.086682"    "1.9341138e-05"
    "19.171776"    "2664.9685"        "18.31899"       "68.216119"    "7.7129851e-05"
    "19.860289"    "2044.0518"        "17.646104"      "88.961919"    "4.3741877e-05"
    "21.355073"    "2823.8126"        "18.492655"      "72.283582"    "6.6637808e-05"];
for col=1:size(a,2)
    L=ismember(a(1,:),a(1,col));
    data=str2double(a(2:end,L));
    switch a(1,col)
        case "Oxygen"
            Oxygen=data;
        case "CarbonDioxide"
            CarbonDioxide=data;
        case "Temperature"
            Temperature=data;
        case "Pressure"
            Pressure=data;
        case "SolarRadiation"
            SolarRadiation=data;
        otherwise
            %deal with unexpected input here
            error('data type not recognized')
    end
end

MATLAB: How to convert 192 bit string to integer in matlab

See bin2vpi(). Download this package, place it on MATLAB path and then try

 bvar='01001101010000010101000001010000010010010100111001000111001000000100000101001110010001000010000001010010010001010101011001000101010100100101001101000101001000000100110101000001010100000000'
 decValue = bin2vpi(binaryNumber)
 decValue =
    118393144898356765668270710060896425839874520309094946048

Best Answer

Related Solutions

MATLAB: Hi, there is a (1×6) vector that i want to extract values from. I used strings to pick-up the subtitle and now the problem is that i have to extract every value under the subtitle (e.g Oxygen). How to i extract those values without hardcoding

MATLAB: How to convert 192 bit string to integer in matlab

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