??? Error using ==> plot Invalid first data argument

filedir = dir('C:\Users\ValcourtA\Documents\WILMA\WILMA500Hz')

timerArray=[];

for cnt=1:5

battery=data(:,1)

timerArray=vertcat(timerArray,filedir(cnt).date)

plot(timerArray,Battery)

end

why do i get this error ??? Error using ==> plot Invalid first data argument

Answer 1

[Dishant Arora]

filedir(cnt).date is a character string. Use datenum

datenum(filedir(cnt).date)

[Mini Me]

problem is i want the date to show but i suse datetick which only display the date not the time...so the graph doesnt come out right because the timestamps difference is seconds between them...

i,e

05/13/14 11:00:05

05/13/14 11:00:06

[Dishant Arora]

make use of dateformnum , as a parameter to datetick

datetick('x' , 0 , 'keepticks')  % after you plot.

for more information see the documentation of datetick.

[Mini Me]

not working..graph comes up as a vertical line because of how closed the dates are....