How can I plot outliers and original data together?

I set a threshold for my outliers, a then find them by "any" command. Now I want to plot the original data and the outliers together. How can I do that?

Temp = data(:,2); % Separating the feature vector

Temp_z_score = (Temp - mean(Temp)) / std(Temp); % Calculation of the z-score (z-score = the number of standard deviations a point is below or over the mean)

threshold = abs(Temp_z_score)>1.8;

U = any(threshold,2);

Answer 1

[Cris LaPierre]

Wouldn't plotting the original data already contain the outliers? I assume you want to plot each group with a different linespec.

Since threshold is a logical array, use logical indexing when you plot. See the bottom of this page for an explanation.

Temp = rand(100,1);
Temp_z_score = (Temp - mean(Temp)) / std(Temp);
threshold = abs(Temp_z_score)>1.8;

plot(Temp(~threshold),'bo','DisplayName','Data')
hold on
plot(Temp(threshold),'r*','DisplayName','Outlier')
hold off
legend

[Seyed Navid Shoaiby]

This plotting does not show the outliers in correct order. I want to plot the original data, and then mark the outliers in their correct order. The resulting graph is this. I want the red points in line with other data points. Any suggestions?

[Cris LaPierre]

You need to specify an x value then. You have not indicated there is one in your OP. If you don't have one, then x is the element number.

Temp = rand(100,1);
X=1:length(Temp);
Temp_z_score = (Temp - mean(Temp)) / std(Temp);
threshold = abs(Temp_z_score)>1.8;

plot(X(~threshold),Temp(~threshold),'bo','DisplayName','Data')
hold on
plot(X(threshold),Temp(threshold),'r*','DisplayName','Outlier')
hold off
legend