storing data set

92 visualizaciones (últimos 30 días)
Pankaj
Pankaj el 15 de Feb. de 2012
Comentada: Panagiotis Papias el 11 de Feb. de 2022
my code returns a 200X200 matrix which has a structure in each of its element. Can I save/store it somewhere and load it later. The system seems to lose it when i close matlab. if i save the variable as .mat file in my workspace it cannnot bring it up later.

Respuestas (2)

carmen
carmen el 16 de Feb. de 2012
sure :)
ok my answer was kind of an overkill, sorry! let "a" be your 200x200 variable and "savea.mat" the file you want to save to. then the command that should do the job is
save('savea','a')
load('savea','a')
what i used above is the sprintf function that allowed me to save to dynamic file and foldernames. in this case sprintf had 3 arguments, "'%s\\%s\\filename'" ,"pwd" and "'foldername'". the first is a string that is interpreted where the %s places the content of the second an third argument in that position. pwd is a matlab command that returns the current matlab folder, let it be "C:\matlab". then:
foldername='fancyfolder'
save(sprintf('%s\\%s\\savea',pwd,'foldername'),'a');
should save the variable a into the file C:\matlab\fancyfolder\savea.mat note that you need the backslash and the "%" sign have special meaning within the sprintf function.
does this help?
  6 comentarios
KUMAR ADITYA
KUMAR ADITYA el 9 de Mayo de 2017
Thanks carmen.....helped me a lot even after 5 years......!!!
Panagiotis Papias
Panagiotis Papias el 11 de Feb. de 2022
Guess what is the year 2022 and still somebody can find it really useful :)

Iniciar sesión para comentar.


carmen
carmen el 15 de Feb. de 2012
I onec used
save(sprintf('%s\\%s\\filename',pwd,'foldername'),'varname');
load(sprintf('%s\\%s\\filename',pwd,'foldername'),'varname');
where pwd returns the current matlab workspace folder. if this does not help you i dont know :(
  1 comentario
Pankaj
Pankaj el 15 de Feb. de 2012
Hi Carmen, thanks for your help - but i am not able to understand the command - can you please spare a min to explain : %%s, \\filename, 'foldername', 'varname'.
tried doc but didn't help

Iniciar sesión para comentar.

Categorías

Más información sobre Startup and Shutdown en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by