reading adding array of same size

I have some dataset in which I can get values of latitude longitude ch4

in this data I do not have year but I know the year of file.

path=('/Temp/test/'); dir_list=dir('v41_CH4*.txt');

vec1=[];

for i=1:length(dir_list)

    data=dlmread(dir_list(i).name,';',3);

    latitude=data(:,1);
    longitude=data(:,2);
    ch4=data(:,3);
    vec1=[vec1;ch4];

end

in above code I am getting vec1 with all values in whole data set and I would like get one array of year also so I can plot time series of this data. e.g in data I have 2 files 1970, 1975 how to get this out put output=[vec1 year]

Answer 1

[Fangjun Jiang]

If it is year per file, you can do:

ch4=data(:,3);
YearData=Year*ones(size(ch4)); %Year is whatever info you can get
vec1=[vec1;ch4,YearData];

[Uday]

hi it works but I am not getting the out put what I want. It just shows me one common out put;

path=('/Temp/test/');

dir_list=dir('v41_CH4*.txt');

vec1=[];

year=[1970,1975];

for i=1:length(dir_list)

data=dlmread(dir_list(i).name,';',3);

latitude=data(:,1);

longitude=data(:,2);

ch4=data(:,3);

YearData=year(i)*ones(size(ch4));

vec1=[vec1;ch4,YearData];

end

e.g one file is for 1970 and another one is for 1975 , but in output I am getting only 1975.

How to solve this problem?

Thanks

[Fangjun Jiang]

If you have just two files, your above code should work. Run your code step by step to debug. Maybe your first file doesn't contain data?