load

in matlab I can save and load for example like this

>> mymat=rand(2,3)

mymat =

    0.2785    0.9575    0.1576
    0.5469    0.9649    0.9706

>> save testfile.vg mymat -ascii >> save testfile.vg mymat -ascii >> clear >> load testfile.vg

but in this assignment I was asked to download a file from the internet that was a vector

the assignment said I should load it with this command

TRD = load('TRONDHEIM_MT_Daily.txt');

i saved is as

trondheim_MT_Daily.txt

and it worked to load it

with the way they noted but the filetype is different from other matlab files. I cant find any information about it on internet. Is .txt an own file type and does anyone know where to find information about it if it is?

Answer 1

[Titus Edelhofer]

Hi Tor,

I don't 100% understand the question: .txt is just as .dat or similar an "indicator" that it's a text file (ascii, not yet nothing to do with MATLAB). The load (as you experienced with testfile.vg) is capable of reading "plain" ascii text files. If the text file contains more than just numbers (like header, dates, etc.), then the other functions for reading ascii files come into play (doc iofun gives an overview).

Titus

[Tor Fredrik Hove]

I have some problem still thank you for your response.

>> load TRONDHEIM_MT_Daily.txt

works

but if I write

>> clear

>> TRD=load TRONDHEIM_MT_Daily.txt

TRD=load TRONDHEIM_MT_Daily.txt

|

Error: Unexpected MATLAB expression.

Is it not possible to assign load to a variable? And the way they do it above in my question is a way to assign a load directly to a random variable? For example this worked:

>> TRD = load('ed');

>> TRD

TRD =

1 2 3

Answer 2

[Titus Edelhofer]

Hi Tor,

if you want to load to a variable you need to use the functional form, i.e.,

TRD = load('Trondheim_MT_Daily.txt');

Note, that the "command" version

load Trondheim_MT_Daily.txt

is equivalent to the "functional" form

load('Trondheim_MT_Daily.txt');

If you need to assign to a variable, you have to use the functional form.

Titus