I have several data log files (here: 34) for those I have to calculate some certain values. I wrote a seperate function to publish the results of the calculation in a pdf file. But I only can publish one file after another, so it takes a while to publish all 34 files.
Now I want to automize that with a loop - importing the data, calculate the values and publish the results for every log file in a new pdf file. I want 34 pdf files for every log file at the end.
My problem is, that I couldn't find a way to rename the pdf files during publishing. The pdf file is always named after the script which is calculating the values. Obviously the pdf is overwritten within a loop. So at the end everything is calculated, but I only have the pdf from the last calculated log file.
There was this hacky solution to change the Matlab publish script, but since I don't have admin rights I can't use that:
"This is really hacky, but I would modify publish to accept a new option prefix. Replace line 93
[scriptDir,prefix] = fileparts(fullPathToScript);
with
if ~isfield(options, 'prefix')
[scriptDir,prefix] = fileparts(fullPathToScript);
else
[scriptDir,~] = fileparts(fullPathToScript);
prefix = options.prefix; end
Now you can set options.prefix to whatever filename you want. If you want to be really hardcore, make the appropriate modifications to supplyDefaultOptions and checkOptionFields as well."
Any suggestions?
Thanks in advance,
Martin
Here's one idea using movefile to rename the resultant published PDF on each iteration:
for i = 1:34
file = publish(files(i)); % Replace with your own command(s)
[pathStr,fileName,ext] = fileparts(file);
newFile = [pathStr filesep() fileName '_' int2str(i) ext]; % Example: append _# to each
[success,msg,msgid] = movefile(file,newFile);
if ~success
error(msgid,msg);
end
end
Also used are fileparts and filesep. See this question for other ways to rename and move files.
Related
I have a txt file containing following characters.
theta1 , l1 and others are symbolic variables.( Don't mind about it)
M=[theta1 + (l1^2*m1)/4 + l1^2*m2 (l1*l2*m2*cos(fi1 - fi2))/2 ;
(l1*l2*m2*cos(fi1 - fi2))/2 theta2 + (l2^2*m2)/4 ]
I need to take it out and make it a symbolic matrix. As you can see txt file is already fine for making matrix but I don't want to copy paste the whole thing to script, I rather want to do it automatically.
fid = fopen('a.txt');
MMatrix=textscan(fid,'%s');
fclose(fid);
I tried the code above but it turn out to be not useful. What do you think is the way to copy the whole thing and use it for matrix making?
Instead of reading that as a string or a character array and then possibly resorting to evil (eval) method, just rename the extension from txt to m since you already have your arrays defined in the MATLAB way in the text files. Maintain a backup copy of those original txt files if needed.
If it is a single file (a.txt), you can rename it manually or with this code to a.m:
movefile('a.txt', 'a.m');
If there are multiple such files in a directory then you can use the following code to change the extension of all such txt files in the current directory:
txtfiles = dir('*.txt'); %getting all txt files in the current directory
for num = 1:numel(txtfiles)
[~, fname] = fileparts(txtfiles(num).name); %filename (without extension)
movefile(txtfiles(num).name, [fname,'.m']); %renaming
end
Now you can simply use the name of the respective file in your script to get whatever arrays that file have in it.
My matlab function is in a folder that contains the main project and the other functions of the code. However, the data is stored in a folder withing the main one named "data" and inside the specific dataset that i want, for example "ded4" in this example. I can't figure out how to open the text file that I want without changing the file to the main folder. The code I have so far is:
function[Classify] = Classify(logDir)
%%%%logDir='ded014a04';
Directory = ['data/' logDir '/']
Filename = [logDir '-fixationsOffSet']
File_name = fullfile(Directory,Filename)
File = fopen(File_name,'r')
end
The code is in the 'dev' folder, I think my path is correct because when I do
open(File_name)
it opens.
Thanks for the help
If you want to open the file in the editor, use
open(File_name)
If you want to read data from the file, you can use
dlmread(File_name) % Read ASCII delimited file.
or
C = textscan(File,'FORMAT') % Read formatted data from text file or string.
or more low-level using fscanf, e.g., if the file contains three columns of integers you do the following: Read the values in column order, and transpose to match the appearance of the file: (from the help of fprintf)
fid = fopen('count.dat');
A = fscanf(fid,'%d',[3,inf])';
fclose(fid);
I am really a newbie in matlab programming. I have a problem in coding to import multiple csv files into one from certain folder:
This is my code:
%% Importing multiple CSV files
myDir = uigetdir; %gets directory
myFiles = dir(fullfile(myDir,'*.csv')); %gets all csv files in struct
for k = 1:length(myFiles)
data{k} = csvread(myFiles{k});
end
I use the code uigetdir in order to be able to select data from any folder, because I try to make an automation program so it would be flexible to use by others. The code that I run only look for the directory and shows the list, but not for merging the csv files into one and read it in "import data". I want it to be merged and read as one file.
My merged file should look like this with semicolon delimited and consist of 47 csv files merged together (this picture is one of the csv file I have):
my merged file
I have been working for it a whole day but I find always error code. Please help me :(. Thank you very much in advance for your help.
As the error message states, you're attempting to reference myFiles as a cell array when it is not. The output of dir is a structure, which cannot be indexed like a cell array.
You want to do something like the following:
for k = 1:numel(myFiles)
filepath = fullfile(myFiles(k).folder, myFiles(k).name);
data{k} = csvread(filepath);
end
I want to read multiple files from a folder but this code does not work properly:
direction=dir('data');
for i=3:length(direction)
Fold_name=strcat('data\',direction(i).name);
filename = fullfile(Fold_name);
fileid= fopen(filename);
data = fread (fileid)';
end
I modified your algorithm to make it easier
Just use this form :
folder='address\datafolder\' ( provide your folder address where data is located)
then:
filenames=dir([folder,'*.txt']); ( whatever your data format is, you can specify it in case you have other files you do not want to import, in this example, i used .txt format files)
for k = 1 : numel(filenames)
Do your code
end
It should work. It's a much more efficient method, as it can apply to any folder without you worrying about names, number order etc... Unless you want to specify certain files with the same format within the folder. I would recommend you to use a separate folder to put your files in.
In case of getting access to all the files after reading:
direction=dir('data');
for i=3:length(direction)
Fold_name=strcat('data\',direction(i).name);
filename = fullfile(Fold_name);
fileid(i)= fopen(filename);
data{i-2} = fread (fileid(i))';
end
I have a folder (new_images) which contains 52 sub-folders (person1 to person52) and each sub-folders contain 50 images which are not sequential (like: person1 1, person1 3, person1 10). I want to these read images from each sub-folders and do a processing, How can I do this?
I would really appreciate your answers
You can load images using the Matlab imread function.
I'm thinking of a quick way to do that:
new_images_rep = pwd;
for i=1:52
eval(srcat('pics = dir(new_images_rep','/person',num2str(i),')');
for k=1:50
a(i,k) = imread(pics(k+2).name,'fmt'); %there is k+2 because the dir function also stores repositories like '.' or '..'.
end
end
You have to be careful with the dir function. You should test it in your new_images repository in order to see what are the files/repositories stored in pics.
eval is a Matlab function that allows you to execute any Matlab expression. The string created by strcatis here (if i=3):
'pics = dir(new_images_rep/person3)'
Be sure that the new_imagesrepository is in your Matlab path, or replace new_images_rep = pwd; by new_images_rep = 'the_actual_full_path'.
'fmt' is the actual format of the images you want to store (like .tif or .jpg or anything else).
Using the code I gave you (and a few modifications), all the files from the first subfolder will be stored in a(1,:). Do not hesitate to read Matlab help on every function used here.