Adding text to a plot without specifying it first as a string

Hello,

I have x and y data from 20 different locations which I have plotted on scatter plots to show their correlation. I have also calculated thee correlation coeffecients of each x-y pair as follows:

R = corr(x,y)

rho = corr(x,y,'type','Spearman')

Next I wanted to add these values (both R and rho) as text on my scatter plots and for that I did the following:

str = {['r = R value'],...

['\rho = rho value']}

text(x,y,str)

However, I would like to know whether there is another way where I can directly call calculated 'R' and 'rho' values to the 'text' function so that I don't have to seperately specify them under 'str'.

Thank you in advance

[Dyuman Joshi]

Any particular reason why you do not want to store it in a variable?

Answer 1

[madhan ravi]

r = 1:3;
rho = 4:6;
plot(1:10)
x = 1:3:9;
y = x+1;
for k = 1 : numel(x)
    text(x(k), y(k), {"r = " + r(k), "\rho = " + rho(k)})
    % text(x(k), y(k), {sprintf(['r = %.1f'], r(k)), sprintf(['\rho =
    % %.1f'], rho(k))}) for older versions
end

[Amavi Silva]

Thank you for the super-fast answer. Worked exactly as I wanted it. Thanks again!