I m creating .wav file in every iteration of for loop and that .wav files are stored in the current directory where I am working on .Now I want to create a folder in current directory and each created file should get store in the created folder in each iteration...
for i=1:size(seg_data(:,1))
w(i,:)=data(seg_data(i,1): seg_data(i,2));
wavwrite(w(i,:),['file_',num2str(i)]);
end
You should use mkdir to create the new directory (once).
Then you should provide the relative path to the new folder to wavwrite
subFolderName = 'mySubFolder'; % for example
mkdir( subFolderName ); % if folder exists, a warning is issued
for ii=1:size( seg_data, 1 )
% ... do your stuff here
wavwrite( w(ii,:), fullfile( subFolderName, sprintf( 'file_%d', ii ) ) );
end
Note the use of fullfile to create path string - works for windows as well as linux paths.
PS,
It is best not to use i as a variable name in Matlab.
Related
I have a directory which again contains subdirectories, which are built has part of other recipe and moved to DEPLOY_DIR_IMAGE using deploy bb class. So now I want to copy it to main image boot partition.
If it was a single file then appending required filename to IMAGE_EFI_BOOT_FILES variable, then yocto copies it to /boot. But same doesn't work for directories containing subdirectories please provide style to include even the subdirectories. Thank you
PS: I have tried appending IMAGE_EFI_BOOT_FILES += "parent_dir/*" didnt work.
It is obvious that IMAGE_EFI_BOOT_FILES is acting like the well known IMAGE_BOOT_FILES and other variables that are responsible for having the files necessary to be shipped in the boot partition. And that needs files and not directories.
So, if you do not need to specify all the files by hand, but instead you want to pass the directory, I suggest you use a python method to collect the files for you and append them to the variable.
See the following example I developed and tested:
def get_files(d, dir):
import os
dir_path = dir
if not os.path.exists(os.path.dirname(dir)):
dir_path = d.getVar(dir)
return ' '.join(f for f in os.listdir(d.getVar(dir)) if os.path.isfile(f))
IMAGE_EFI_BOOT_FILES += "${#get_files(d, 'DEPLOY_DIR_IMAGE')}"
The method will test if the argument is a real path then it will directly check for files, if not it will assume that it is a bitbake variable and it will get its content, so if DEPLOY_DIR_IMAGE is, for example, /home/user/dir, passing DEPLOY_DIR_IMAGE or /home/usr/dir will give the same result.
IMPORTANT
It is obvious also that IMAGE_EFI_BOOT_FILES is used in a .conf file such as local.conf or a custom machine configuration file. So adding that python function in .conf file will not work. I suggest creating a class for it and inherit it globally in your .conf file:
meta-custom/classes/utils.bbclass
local.conf:
INHERIT += "utils"
IMAGE_EFI_BOOT_FILES += "${#get_files(d, 'DEPLOY_DIR_IMAGE')}"
Try this and let me know in the comments.
EDIT
I have just realized that bitbake already imports os within python expressions expansions, so you can do it in one line without any need for a separate python function:
PATH = "/path/to/directory/" or
PATH = "A variable containing the path"
IMAGE_EFI_BOOT_FILES += "${#' '.join('%s' % f for f in os.listdir('${PATH}') if os.path.isfile(f))}"
Note: I am looking for Yocto built-in which can achieve solution for above mentioned , would like to share other way to resolve the functionality for community's benefit.
Add following in bb file if you are using one or refer to talel-belhadjsalem answer to use utils.bbclass.
def add_directory_bootfs(d, dirname, bootfs_dir):
file_list = list()
boot_files_list = list()
deploy_dir_image = d.getVar('DEPLOY_DIR_IMAGE')
for (dirpath, dirnames, filenames) in os.walk(os.path.join(deploy_dir_image, dirname)):
file_list += [os.path.join(dirpath, file) for file in filenames]
for file in file_list:
file_rel_path = os.path.relpath(file, os.path.join(deploy_dir_image, dirname))
boot_file_entry = os.path.join(dirname, file_rel_path) + ';' + os.path.join(bootfs_dir, dirname, file_rel_path)
boot_files_list.append(boot_file_entry)
return ' '.join(boot_files_list)
IMAGE_EFI_BOOT_FILES += "${#add_directory_bootfs(d, 'relative_path_to_dir_in_deploy_dir_image', 'EFI/BOOT')}"
Hello i have one more problem with deploying my app by Streamlit. It works localy but when I want to upload it on git hub it doesnt work..Have no idea whats wrong. It seems that there is problem with path to the file:
"File "/app/streamlit/bobrza.py", line 14, in <module>
bobrza_locations = pd.read_csv(location)"
Here is link to my github repo. Will be very very grateful for help. Thank in advance.
https://github.com/Bordonous/streamlit
The problem is you are hard coding the path of the bobrza1.csv and route.csv to the path on your computer so when running the code on a different environment the path in not legal.
The solution is to make location independent from running environment, for this we will use the following:
__file__ variable - the path to the current python module (the .py file).
os.path.dirname() - a function to get directory name from path.
os.path.abspath() - a function to get a normalized absolutized version of path.
os.path.join() - a function to join one or more path components.
Now you need to change your location and location2 variables in the code to the following:
# get the absolute path to the directory contain the .csv file
dir_name = os.path.abspath(os.path.dirname(__file__))
# join the bobrza1.csv to directory to get file path
location = os.path.join(dir_name, 'bobrza1.csv')
# join the route.csv to directory to get file path
location2 = os.path.join(dir_name, 'route.csv')
Resulting in an independent path of the bobrza1.csv and route.csv.
I can’t test whether a directory exists from within a Fastlane action nor lane. None of the following work for save_path = "./dir_name" nor save_path = "dir_name" in the current directory (from which fastlane is being run):
!Dir.empty?(save_path)
!Dir[save_path].empty?
Dir.exist?(save_path)
File.exist?(save_path)
File.directory?(save_path)
I even tried to expand the relative path:
File.exists? File.expand_path(save_path)
I have referred to the following:
Check if directory is empty in Ruby
How to check if a given directory exists in Ruby
https://blog.bigbinary.com/2017/02/28/dir-emtpy-included-in-ruby-2-4.html
https://ruby-doc.org/core-2.2.0/Dir.html
How does one test to see if a directory exists from within Fastlane? Thank you for reading and for your help!
The correct format to check this:
Dir.exist? "#{save_path}"
Will return true if it exists or false if not.
LOL Well, I discovered my issue. I didn't realize that I had to include the entire path to each of these statements, since I'm using Dir.foreach to iterate over part of the filesystem; the updated syntax is:
Dir.foreach(save_path) do |dir|
next if dir == '.' or dir == '..'
if (File.directory?("#{save_path}#{dir}"))
begin
FileUtils.mkdir_p("./#{save_path}#{dir}/images")
rescue StandardError => e
UI.message("Failed to make directory ./#{save_path}#{dir}/images: #{e.to_s}")
return
end
end
end
This is versus File.directory?("#{dir}") in that if statement. I thought that the Ruby Dir and FileUtil libraries would look relative to the current directory for the remainder of the path.
This code should create a single directory:
File[] dirs = context.getExternalFilesDirs(type);
File dir = new File(dirs[dirs.length-1].getAbsolutePath());
dir.mkdirs();
return dir;
When I run it, it creates two directories:
mnt/sdcard/Android/data/com.test.sdcard
storage/0D68-5DA2/Android/data/com.test.sdcard
Why are both of these created?
It is important that I only have 1 directory.
What does this setup.m file do?
function setup
%SETUP Adds directories for Metrics to your MATLAB path
%
% Author: Ben Hamner (ben#benhamner.com)
myDir = fileparts(mfilename('fullpath'));
paths = genpath(myDir);
paths = strread(paths,'%s','delimiter',':');
pathsToAdd = [];
for i=1:length(paths)
thisPath = paths{i};
thisPathSplit = strread(thisPath,'%s','delimiter','/');
addThisPath = 1;
% Do not add any directories or files starting with a . or a ~
for j=1:length(thisPathSplit)
thisStr = thisPathSplit{j};
if (~isempty(thisStr)) && ((thisStr(1) == '.') || (thisStr(1) == '~'))
addThisPath = 0;
end
end
if addThisPath ==1
if ~isempty(pathsToAdd)
thisPath = [':' thisPath];
end
pathsToAdd = [pathsToAdd thisPath];
end
end
addpath(pathsToAdd);
savepath;
I understand from the description that it adds directories to Matlab's search path. But which one and why? My Matlab scripts are often scattered with addpath('data') lines. Does this mean I don't have to do that anymore? Your comments are much appreciated.
The file that you are linking is a setup file for the Metrics package - it adds paths to various folders so that you can use Metrics package without setting up the paths manually.
More specifically the setup.m function adds all paths at the level and below where it is located. If you copy this file to any directory and run it - it will add this directory and all its subdirs and subdirs of subdirs etc. (excluding folders starting with . or ~)
But I have a hunch that what you are looking for is this:
http://www.mathworks.com/help/matlab/ref/startup.html
http://www.mathworks.com/help/matlab/ref/matlabrc.html
This is adding the directory that setup.m is located in as well as every sub directory within that directory. fileparts(mfilename('fullpath')) gets the directory that the file exists in, and genpath(myDir); gets all of the subdirectories. Note that this leaves out any directory starting with a '.' or a '~'