MATLAB: Plotting from mat file

MATLABplotting

My problem is plotting from filename.mat which has four columns:years,months,days and value for that date. Howdo i separate certain data from such a file,if i want for example plot only the values for 1st and 2nd mont of every year? mat file is included

Best Answer

If you want only first and second month in your variables you can do this:

POSTAJE_CLM_hvar(POSTAJE_CLM_hvar(:,2)<3,:)

Alternatively:

POSTAJE_CLM_hvar(POSTAJE_CLM_hvar(:,2)==1 | POSTAJE_CLM_hvar(:,2)==2,:)

If you want to plot the corresponding values only for first and second month of year for example in the 5th column:

plot(POSTAJE_CLM_hvar(POSTAJE_CLM_hvar(:,2)==1 | POSTAJE_CLM_hvar(:,2)==2,5))

Related Solutions

MATLAB: Please help!!!! Write a function that returns the number of days between dates

days_between_dates = @(month1,day1,year1,month2,day2,year2)...
                         abs(datenum(year1,month1,day1) - datenum(year2,month2,day2));

days_between_dates = @(month1,day1,year1,month2,day2,year2)...
                            abs(diff(datenum([year1,month1,day1;year2,month2,day2])));

use:

>> days_between_dates(10,12,2015,9,5,2016)
ans =
   329
>>

MATLAB: How is datevec used on an m*8 matrix in the form [YEAR, MONTH, DAY, HOUR, MINUTE, SECOND, Day of Year, Value]

data = [1980  1  1  0  0  0  1  -27
1980  1  1  1  0  0  1  -20
1980  1  1  2  0  0  1  -23
1980  1  1  3  0  0  1  -28
1980  1  1  4  0  0  1  -32
1980  1  1  5  0  0  1  -32
1980  1  1  6  0  0  1  -32
1980  1  1  7  0  0  1  -31
1980  1  1  8  0  0  1  -33];
d = data(:,1:end-2) ;
val = data(:,end) ;
date = datetime(d) ;
plot(date,val)

Best Answer

Related Solutions

MATLAB: Please help!!!! Write a function that returns the number of days between dates

MATLAB: How is datevec used on an m*8 matrix in the form [YEAR, MONTH, DAY, HOUR, MINUTE, SECOND, Day of Year, Value]

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