How to find significance of correlation coefficients?
39 次查看(过去 30 天)
显示 更早的评论
Hi Matlab World,
I am trying to find the significance of the correlation coefficients between two variables ssh and t (Zip file attached). I have hence used the following code:
lat = ncread('ssh.nc','latitude');
lon = ncread('ssh.nc','longitude');
ssh = ncread('ssh.nc','zos');
t = ncread('ssh.nc','bottomT');
nx=length(lon);
ny=length(lat);
rxy = zeros(nx,ny) ;
sxy = zeros(nx,ny) ;
for i=1:nx
for j=1:ny
[r,s] = corr(squeeze(t(i,j,:)),squeeze(ssh(i,j,:)));
rxy(i,j)=r;
end
end
I wanted to find how much of the area has significant correlation at 95% significance level (p value < 0.05) and plot it thereafter. Looking forward to your assistance.
0 个评论
采纳的回答
Adam Danz
2020-4-13
The 2nd output to corr() gives you the p-value. You just need to save those values.
[rxy(i,j),sxy(i,j)] = corr(squeeze(t(i,j,:)),squeeze(ssh(i,j,:)));
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 NetCDF 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!