please rectify the error

please help me rectify the error

    for i = 1 : 18
        if vegetation(i,1) == 5 && land_cover_type == 32
            high = 0.2632; low = 0.7095;
        elseif vegetation(i,1) > 5 && vegetation(i,1) < 11 && land_cover_type == 21
            high = 0.3468; low = 0.6514;
        elseif vegetation(i,1) > 11 && vegetation(i,1) < 23 && land_cover_type == 32
            high = 0.2740; low = 0.7260;
        elseif vegetation(i,1) > 11 && vegetation(i,1) < 23 && land_cover_type == 23
            high = 0.3853; low = 0.6147;
        elseif vegetation(i,1) > 11 && vegetation(i,1) < 23 && land_cover_type == 33
            high = 0.3774; low = 0.6226;
        end
        HIGH(i,1) = high
        LOW(i,1) = low
    end

my error is

   ??? Operands to the || and && operators must be convertible to logical scalar values.

   Error in ==> Untitled7 at 12
    elseif vegetation(i,1) > 5 && vegetation(i,1) < 11 && land_cover_type == 21

[David Sanchez]

What are the type of your variables? Could you please paste here the output/value of vegetation(i,1) and land_cover_type?

[Elysi Cochin]

vegetation and land_cover_type are of double datatype in the range [21 33] and [4 19] respectively

Answer 1

[Image Analyst]

Use the debugger. You'll discover that land_cover_type is a vector, not a single number.