Problem to read CSV file

Hi

My csv file is 402 rows and 2 columns (A and B).I want to read 2nd (B )column from 77 row and calculate average value. i tried like this. but it give me error. anyone please tell me how can i do it.

data=csvread('torque.csv',B77);
x=data(:,2);
   B = x.';
   y=mean(B)

Answer 1

[Omer Yasin Birey]

csvread('torque.csv',77,2,[77 2 77 2])

[Israt Jahan]

Hi

It gives me following error

Index exceeds matrix dimensions.

Error in dlmread (line 152)

result = result{1};

Error in csvread (line 50)

m=dlmread(filename, ',', r, c, rng);

Error in torque (line 1)

data=csvread('torque.csv',77,2,[77 2 77 2]);

Cant understand why?