How to define a path in saveas command?

Hey Matlab users,

I've got a problem in defining a path for saveas command. When i want to save my Figure, the file is directly been saved in a path that is already on top of the command window in front of the "Current Folder". I tried to change the address by fname:

fname = 'D:\path1\path2';

saveas(gca,filename,'jpeg');

But it didn't work!!!

I very much appreciate your hint :) Mehdi

Answer 1

[Jan]

You have to consider the variable fname in the call of saveas:

fname = 'D:\path1\path2';
saveas(gca, fullfile(fname, filename), 'jpeg');

I assume "fpath" would be more meaningful than "fname".

[Andy]

thank you very much I lost hours on my problem until you

[Sreeraj T]

@Jan

Inorder to save file on to the same directory where my matlab program is there, I used to use this command:

print('-dpng',['FirstVar',num2str(A),'SecondVariable',num2str(B),'ForLoopIndex',num2str(i),'.png'])

How can I modify your code to accomplish this?

[Jan]

To accomplish what? Where is your "matlab program"? Do you mean matlab.exe or an M-file? Is it a compiled application?

I find this version easier to read:

FiileName = sprintf('FirstVar%dSecondVariable%dForLoopIndex%d.png', A, B, i);
File      = fullfile(Folder, FileName)
print('-dpng', File);

I guess, that you want to file to be stored in the folder of the M-file. Then:

Folder = fileparts(mfilename('fullpath'));

[Sreeraj T]

@Jan, extremely sorry for posing the problem in a bad way.

I have a matlab code located at “D:\FolderA” which is used to analyze data located at “E:\DataFiles”. Matlab code will generate some plot, which I want to save in “E:\DataFiles”. If I wanted to save the file in the same folder where my program is, the I was using :

print('-dpng',['FirstVar',num2str(A),'SecondVariable',num2str(B),'ForLoopIndex',num2str(i),'.png'])

My question was what if I want to save it to “E:\DataFiles”.

Your solution helped me. Thank you

[Marcus Tan]

I need help to save an stft fig file format to .bmp file format. Can someone help me pls..im stuck for multiple weeks. this is my code

clear all; clc

%%read file by selecting the files
[file_list, path_n] = uigetfile('21.eea', 'Grab the files you process', 'Multiselect', 'on');

tic

if iscell(file_list) == 0
    file_list = {file_list};
end

%%processing file by adjusting the samples being used
for i=1:length(file_list)
    filename = file_list{i};
    data_in = importdata([path_n filename]);
    fs=128; %sampling frequency
    ts=1/fs; %Sampling interval
    x=ts*(1:size(data_in(1:7000),1));
    B=data_in(1:1750);%Channel 1 of EEG
    C=data_in(1751:3500);%Channel 1 of EEG
    D=data_in(3501:5250);%Channel 1 of EEG
    E=data_in(5251:7000);%Channel 1 of EEG
    A1=B+C+D+E;
    B1=data_in(7001:8750);%Channel 2 of EEG
    C1=data_in(8751:10500);%Channel 2 of EEG
    D1=data_in(10501:12250);%Channel 2 of EEG
    E1=data_in(12251:14000);%Channel 2 of EEG
    A2=B1+C1+D1+E1;
    B2=data_in(14001:15750);%Channel 3 of EEG
    C2=data_in(15751:17500);%Channel 3 of EEG
    D2=data_in(17501:19250);%Channel 3 of EEG
    E2=data_in(19251:21000);%Channel 3 of EEG
    A3=B2+C2+D2+E2;
    B3=data_in(21001:22750);%Channel 4 of EEG
    C3=data_in(22751:24500);%Channel 4 of EEG
    D3=data_in(24501:26250);%Channel 4 of EEG
    E3=data_in(26251:28000);%Channel 4 of EEG
    A4=B3+C3+D3+E3;
    B4=data_in(28001:29750);%Channel 5 of EEG
    C4=data_in(29751:31500);%Channel 5 of EEG
    D4=data_in(31501:33250);%Channel 5 of EEG
    E4=data_in(33251:35000);%Channel 5 of EEG
    A5=B4+C4+D4+E4;
    B5=data_in(35001:36750);%Channel 6 of EEG
    C5=data_in(36751:38500);%Channel 6 of EEG
    D5=data_in(38501:40250);%Channel 6 of EEG
    E5=data_in(40251:42000);%Channel 6 of EEG
    A6=B5+C5+D5+E5;
    B6=data_in(42001:43750);%Channel 7 of EEG
    C6=data_in(43751:45500);%Channel 7 of EEG
    D6=data_in(45501:47250);%Channel 7 of EEG
    E6=data_in(47251:49000);%Channel 7 of EEG
    A7=B6+C6+D6+E6;
    B7=data_in(49001:50750);%Channel 8 of EEG
    C7=data_in(50751:52500);%Channel 8 of EEG
    D7=data_in(52501:54250);%Channel 8 of EEG
    E7=data_in(54251:56000);%Channel 8 of EEG
    A8=B7+C7+D7+E7;
    B8=data_in(56001:57750);%Channel 9 of EEG
    C8=data_in(57751:59500);%Channel 9 of EEG
    D8=data_in(59501:61250);%Channel 9 of EEG
    E8=data_in(61251:63000);%Channel 9 of EEG
    A9=B8+C8+D8+E8;
    B9=data_in(63001:64750);%Channel 10 of EEG
    C9=data_in(64751:66500);%Channel 10 of EEG
    D9=data_in(66501:68250);%Channel 10 of EEG
    E9=data_in(68251:70000);%Channel 10 of EEG
    A10=B9+C9+D9+E9;
    B10=data_in(70001:71750);%Channel 11 of EEG
    C10=data_in(71751:73500);%Channel 11 of EEG
    D10=data_in(73501:75250);%Channel 11 of EEG
    E10=data_in(75251:77000);%Channel 11 of EEG
    A11=B10+C10+D10+E10;
    B11=data_in(77001:78750);%Channel 12 of EEG
    C11=data_in(78751:80500);%Channel 12 of EEG
    D11=data_in(80501:82250);%Channel 12 of EEG
    E11=data_in(82251:84000);%Channel 12 of EEG
    A12=B11+C11+D11+E11;
    B12=data_in(84001:85750);%Channel 13 of EEG
    C12=data_in(85751:87500);%Channel 13 of EEG
    D12=data_in(87501:89250);%Channel 13 of EEG
    E12=data_in(89251:91000);%Channel 13 of EEG
    A13=B12+C12+D12+E12;
    B13=data_in(91001:92750);%Channel 14 of EEG
    C13=data_in(92751:94500);%Channel 14 of EEG
    D13=data_in(94501:96250);%Channel 14 of EEG
    E13=data_in(96251:98000);%Channel 14 of EEG
    A14=B13+C13+D13+E13;
    B14=data_in(98001:99750);%Channel 15 of EEG
    C14=data_in(99751:101500);%Channel 15 of EEG
    D14=data_in(101501:103250);%Channel 15 of EEG
    E14=data_in(103251:105000);%Channel 15 of EEG
    A15=B14+C14+D14+E14;
    B15=data_in(105001:106750);%Channel 16 of EEG
    C15=data_in(106751:108500);%Channel 16 of EEG
    D15=data_in(108501:110250);%Channel 16 of EEG
    E15=data_in(110251:112000);%Channel 16 of EEG
    A16=B15+C15+D15+E15;
    

    p1= A1+A2+A3+A4+A5+A6+A7+A8+A9+A10+A11+A12+A13+A14+A15+A16;

    %Signal Transformation using STFT and converting into grayscale
    
    figure('Name','Schizophrenia Patient');
    stft(p1,fs,'window',kaiser(256,5),'OverlapLength',220,'FFTLength',512);
    colormap(flipud(gray));
    stft_file=filename    
toc    

FolderName = ('C:\Users\Acer\Desktop\FYP 2021\Matlab (Proj)\Channels Split (STFT)\Schizophrenia (Combine Channels)');   % Your destination folder
saveas(gca, fullfile(FolderName, stft_file), '.bmp');
end

[Marcus Tan]

Currently the saving is only saving .eea file. what i trying to do in this project is trying to plot the signals from .eea file format transform them to fig file format then i trying to save the fig file format to .bmp. Kindly advise. Thank you

[Jan]

...
for i=1:length(file_list)
    filename = file_list{i};  % Now filename contains the .eea extension.
    ... % Your code
    FolderName = 'C:\Users\Acer\Desktop\FYP 2021\Matlab (Proj)\Channels Split (STFT)\Schizophrenia (Combine Channels)';
    [~, file]  = fileparts(filename);  % Remove extension
    saveas(gca, fullfile(FolderName, [file, '.bmp']);  % Append .bmp
end

Answer 2

[Wayne King]

You can either change directory to the directory you want to save it in, or you can specify the directory

plot(randn(100,1));
save(gca,'c:\figures\test','jpeg');

[Wayne King]

Also if you want to define your figures directory

figuresdir = 'D:\figures\';

saveas(gcf,strcat(figuresdir, 'filename'), 'jpeg');

[adams13]

Instead of 'strcat' it is better to use the 'fullfile' function because it will handle the file separator and will work in different operating systems (will place correctly '\' in Windows, '/' in Linux etc.)

saveas(gcf, fullfile(figuresdir, 'filename'), 'jpeg');