Why PCA gives vector as output for 294*40 matrix in matlab

I am new to stats and matlab too.

I referred tutorial to use pca in matlab

I have 294*40 matrix named pcaInput and I write

    pcaInput = load('formatData.txt'); % pca Input will be of 294*40

    pcaOutput=pca(pcaInput) 

    %that's it

My code is of two lines only. As per the tutorial , it should give me a matrix of 40*40 but it is giving me a matrix of 40*1. where I am going wrong ?

As per the tutorial , this output is unacceptable. I searched on the internet for that but , can not find any article on this topic.

[Image Analyst]

You forgot to attach 'formatData.txt'.