how add intensity/frequency to the scatter plot
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
didi
le 6 Mar 2018
Commenté : Pawel Jastrzebski
le 7 Mar 2018
Hi, I would like to scatter plot these two vectors: X=[0 0 1 2 0 1 1 0]; Y=[1 1 1 1 2 0 0 2]; and had the frequency of occurrence in the color or in the size of the points, something like the attached pic
0 commentaires
Réponse acceptée
Pawel Jastrzebski
le 6 Mar 2018
Modifié(e) : Pawel Jastrzebski
le 6 Mar 2018
Consider the code below but also check the documentation for:
X=[0 0 1 2 0 1 1 0];
Y=[1 1 1 1 2 0 0 2];
% find the freqency vector
minVal = min(Y)
maxVal = max(Y)
vectorOfvalues = minVal:maxVal
howMany = Y'==vectorOfvalues
howManySum = sum(howMany);
% this line nicely show how the occurance of a value
% 1st row: value
% 2nd row: occurance
howManySum = [vectorOfvalues; howManySum]
% pre-allocation
occurence = zeros(1,length(Y));
for i=1:length(howManySum)
occurence(Y==howManySum(1,i)) = howManySum(2,i);
end
Y
occurence
% I've added the factor of 50 for the occurance
% so the diffrence between the dot sizes is visible
figure
scatter(X,Y,50*occurence)
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Scatter Plots 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!