saving-data

问题 I have successfully loaded a .txt file into R. I want to save the data so I can actually actively use it. What is the command for saving a file? Will I save the file to one of the existing packages (UsingR, MASS), or just as a separate file? 回答1: The command you look for is either one of these : save() : saves the mentioned objects as R objects (extension .RData). These files are binary and can be read very quickly again with load() write() : is a wrapper for cat() and is used to create text

问题 I want to save the video every 5 seconds while the video recording is ON. I have tried many solutions but I am facing a Glitch that is, the Last Saved Frame remains in preview for around 300ms. I think the reason is in MediaRecorder class "Once a recorder has been stopped, it will need to be completely reconfigured and prepared before being restarted." Thanks 回答1: I think it's impossible to do that with MediaRecorder . The better approach could be encoding video by using MediaCodec and

问题 Good day all, I am working on a practice app that involves fragments, keeping track of data, and SharedPreferences , Here is the scenario, I have a questionnaire-like app, it will ask the user 15 questions but for the sake of this example i'm going to say five(5) and use random questions with yes and no buttons as options.It will look something like this: |Question 1: Are you a citizen?| yes/no |Question 2: Are you human?| yes/no |Question 3: Do you sleep a lot?| yes/no |Question 4: Do you

问题 I have an app that needs to collect a bunch of data while connected to a stream. I need to save this data to a file that I can later pull off my device and analyze using a standard computer. My code currently looks like: private void saveData(byte[] data){ File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS); File file = new File(path, "_Ascent_Test.txt"); try { FileOutputStream stream = new FileOutputStream(file, true); stream.write(data); stream.close()

问题 Im making a Test Maker App for both Desktop and Android. I was able to save and load in Desktop but failed on Android. I can ONLY save my file, but i cannot load my saved file. The Android device says "No files were found". It doesnt even open a file browser. The type of saving and loading that im doing is the type where the user can actually look for his project and open it. Im currently using FileReference to do this. It works on Desktop but not on Android Mobile. Can somebody help me with

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I was wondering... What's the best way to save data in Unity games. JSONs? If so, how? Thanks 回答1: Short answer to your long question! Here are some of the different Ways and Methods to Save data for Unity Projects: Platform-Independent: One way of saving data in Unity3D in a

问题 I am making an app that will let users take photos and save them to the app, which will be password protected. So far, the app can take a picture, retrieve it, and set it to an image view. However, when I restart the app the image goes away. How can I save it? int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 0; Uri imageUri; public void takePic(View view){ Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(),

问题 This might be a stupid question, and this might also be a duplicate. But, I really do not know and have not been able to find the solution to it, at all. My question is, how do apps save data. I'm making an app with LibGDX and Java for Android devices, and am just stuck pondering on this. How is it that, for example, when I close down Candy Crush and reopen it the day after, it remembers where I'm at even though the app resets? If this does happen to be a duplicate, I would strongly

问题 As part of an Excel Workbook Template a Dictionary object (from the Scripting Runtime Library) is created and added to. Is it possible to save this in some way along with the Workbook such that it is available on starting up the Workbook, or should I just export the data to a worksheet and save it, then reload it in the next time? 回答1: I reckon a worksheet is the best bet. You might like to use the very hidden option, which means the sheet can only be made visible by code. For example:

问题 I'm new to android developing, and I'm in need of help. I've got two problems which are: I don't know how to create two subdirectories inside my main directory. I know how to create subdirectory inside of a directory ( File directory = new File(Environment.getExternalStorageDirectory()+"Saling-Wika/Audio&Text Files"); ), but what I do want is there would be two subdirectories inside of my main subdirectory (The Audio Files & Text Files are different two subdirectories inside the Saling-Wika