Error in paired t-test between corresponding elements.
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I am trying to perform paired t-test between corresponding elements of group1 and group2. It should provide non-NaN p-values for each corresponding pair but it is providing NAN values. Please help to resolve the error. Below is my code.
% Define the data for two groups
group1 = [10, 15, 20, 25, 30];
group2 = [12, 18, 22, 28, 32];
% Initialize array to store p-values
p_values = zeros(size(group1));
% Check if the sizes of the two groups are the same
if numel(group1) ~= numel(group2)
error('The sizes of the two groups must be the same.');
end
% Perform paired t-test for each pair of corresponding elements
for i = 1:numel(group1)
fprintf('Performing t-test for Node %d...\n', i);
% Perform paired t-test for the current pair
[~, p_values(i)] = ttest(group1(i), group2(i));
end
% Display the p-values for each corresponding pair
for i = 1:numel(group1)
fprintf('Node %d: p-value = %f\n', i, p_values(i));
end
1 commentaire
VBBV
le 26 Mar 2024
The input data for samples need to be vectors when using ttest or ttest2 functions to evaluate the p-values
Réponse acceptée
VBBV
le 25 Mar 2024
Modifié(e) : VBBV
le 25 Mar 2024
% Define the data for two groups
group1 = [10, 15, 20, 25, 30];
group2 = [12, 18, 22, 28, 32];
% Initialize array to store p-values
p_values = zeros(size(group1));
% Check if the sizes of the two groups are the same
if numel(group1) ~= numel(group2)
error('The sizes of the two groups must be the same.');
end
% Perform paired t-test for each pair of corresponding elements
for i = 1:numel(group1)
fprintf('Performing t-test for Node %d...\n', i);
% Perform paired t-test for the current pair
[~, p_values(i)] = ttest(group1, group2(i)); % use a vector for paired comparison test
end
% Display the p-values for each corresponding pair
for i = 1:numel(group1)
fprintf('Node %d: p-value = %f\n', i, p_values(i));
end
p_values
4 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Data Type Conversion dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!