for loop keeps putting out error

% Define the dimensions of the garden area (in square feet)
garden_width = 6;  % You may adjust this to fit your garden dimensions
garden_length = 150;

% Define the distance between each garden layout
spacing = 30;

% Create a single figure for the entire garden layout
figure;
axis([0, garden_width, 0, garden_length]);
axis equal;
hold on;

% Define the plant coordinates (x, y) and sizes for each layout
plants = {
    'Beach Plum', [5, 20], 2, 'b';
    'Hibiscus', [15, 20], 2, 'g';
    'NE Aster', [25, 20], 2, 'r';
    'Iris Versicolor', [10, 10], 1, 'c';
    'Bee Balm', [20, 10], 1, 'm';
    'Rosa Palustris', [5, 5], 1.5, 'y';
    'Viburnum Dentatum', [15, 5], 1.5, 'k';
    'Little Blue Stem', [25, 5], 1, 'w';
    };

% Loop to generate garden layouts along the length
for start_y = 0:spacing:garden_length
    % Plot the garden layout for the current section
    for i = 1:size(plants, 1)
        plant_name = plants{i, 1};
        coordinates = plants{i, 2};
        size = plants{i, 3};
        color = plants{i, 4};
        
        % Plot a filled circle to represent each plant with the specified color
        x = coordinates(1);
        y = coordinates(2);
        r = size;
        theta = linspace(0, 2*pi, 100);
        x_circle = r * cos(theta) + x;
        y_circle = r * sin(theta) + y + start_y;
        
        % Plot the filled circle for the plant
        plot(x_circle, y_circle, 'DisplayName', plant_name, 'Color', color, 'MarkerFaceColor', color);
    end
end

Unable to use a value of type cell as an index.

size appears to be both a function and a variable. If this is unintentional, use 'clear size' to remove the variable 'size' from the workspace.

% Set labels for the plants
title('Garden Layout');
xlabel('Width (feet)');
ylabel('Length (feet)');

% Customize the appearance as needed
legend('Location', 'BestOutside');
hold off;

Answer 1

[Matt J]

% Loop to generate garden layouts along the length
for start_y = 0:spacing:garden_length
    % Plot the garden layout for the current section
    for i = 1:size(plants, 1)
        plant_name = plants{i, 1};
        coordinates = plants{i, 2};
        plant_size = plants{i, 3};
        plant_color = plants{i, 4};
        
        % Plot a filled circle to represent each plant with the specified color
        x = coordinates(1);
        y = coordinates(2);
        r = plant_size;
        theta = linspace(0, 2*pi, 100);
        x_circle = r * cos(theta) + x;
        y_circle = r * sin(theta) + y + start_y;
        
        % Plot the filled circle for the plant
        plot(x_circle, y_circle, 'DisplayName', plant_name, 'Color', plant_color, 'MarkerFaceColor', plant_color);
    end
end

% Set labels for the plants
title('Garden Layout');
xlabel('Width (feet)');
ylabel('Length (feet)');

% Customize the appearance as needed
legend('Location', 'BestOutside');
hold off;

Answer 2

[the cyclist]

Don't use the keyword size as a variable name. I changed it in the code below:

% Define the dimensions of the garden area (in square feet)
garden_width = 6;  % You may adjust this to fit your garden dimensions
garden_length = 150;

% Define the distance between each garden layout
spacing = 30;

% Create a single figure for the entire garden layout
figure;
axis([0, garden_width, 0, garden_length]);
axis equal;
hold on;

% Define the plant coordinates (x, y) and sizes for each layout
plants = {
    'Beach Plum', [5, 20], 2, 'b';
    'Hibiscus', [15, 20], 2, 'g';
    'NE Aster', [25, 20], 2, 'r';
    'Iris Versicolor', [10, 10], 1, 'c';
    'Bee Balm', [20, 10], 1, 'm';
    'Rosa Palustris', [5, 5], 1.5, 'y';
    'Viburnum Dentatum', [15, 5], 1.5, 'k';
    'Little Blue Stem', [25, 5], 1, 'w';
    };

% Loop to generate garden layouts along the length
for start_y = 0:spacing:garden_length
    % Plot the garden layout for the current section
    for i = 1:size(plants, 1)
        plant_name = plants{i, 1};
        coordinates = plants{i, 2};
        sizevar = plants{i, 3};
        color = plants{i, 4};
        
        % Plot a filled circle to represent each plant with the specified color
        x = coordinates(1);
        y = coordinates(2);
        r = sizevar;
        theta = linspace(0, 2*pi, 100);
        x_circle = r * cos(theta) + x;
        y_circle = r * sin(theta) + y + start_y;
        
        % Plot the filled circle for the plant
        plot(x_circle, y_circle, 'DisplayName', plant_name, 'Color', color, 'MarkerFaceColor', color);
    end
end

% Set labels for the plants
title('Garden Layout');
xlabel('Width (feet)');
ylabel('Length (feet)');

% Customize the appearance as needed
legend('Location', 'BestOutside');
hold off;

Answer 3

[Voss]

You have defined a variable called size, which means that the next time the code tries to use the built-in size function (i.e., in for i = 1:size(plants,1) on the second iteration of the outer loop), it doesn't use the built-in size function but instead tries to index your size variable, and that produces the error.

Change your variable size to something else; here I've used siz.

% Define the dimensions of the garden area (in square feet)
garden_width = 6;  % You may adjust this to fit your garden dimensions
garden_length = 150;
% Define the distance between each garden layout
spacing = 30;
% Create a single figure for the entire garden layout
figure;
axis([0, garden_width, 0, garden_length]);
axis equal;
hold on;
% Define the plant coordinates (x, y) and sizes for each layout
plants = {
    'Beach Plum', [5, 20], 2, 'b';
    'Hibiscus', [15, 20], 2, 'g';
    'NE Aster', [25, 20], 2, 'r';
    'Iris Versicolor', [10, 10], 1, 'c';
    'Bee Balm', [20, 10], 1, 'm';
    'Rosa Palustris', [5, 5], 1.5, 'y';
    'Viburnum Dentatum', [15, 5], 1.5, 'k';
    'Little Blue Stem', [25, 5], 1, 'w';
};
% Loop to generate garden layouts along the length
for start_y = 0:spacing:garden_length
    % Plot the garden layout for the current section
    for i = 1:size(plants, 1)
        plant_name = plants{i, 1};
        coordinates = plants{i, 2};
        siz = plants{i, 3};
        color = plants{i, 4};
        % Plot a filled circle to represent each plant with the specified color
        x = coordinates(1);
        y = coordinates(2);
        r = siz;
        theta = linspace(0, 2*pi, 100);
        x_circle = r * cos(theta) + x;
        y_circle = r * sin(theta) + y + start_y;
        % Plot the filled circle for the plant
        plot(x_circle, y_circle, 'DisplayName', plant_name, 'Color', color, 'MarkerFaceColor', color);
    end
end
% Set labels for the plants
title('Garden Layout');
xlabel('Width (feet)');
ylabel('Length (feet)');
% Customize the appearance as needed
legend('Location', 'BestOutside');
hold off;