How to printing all 8 neighbors in a 2D vector (Segmentation Fault)
来源： https://stackoverflow.com/questions/64076314/how-to-printing-all-8-neighbors-in-a-2d-vector-segmentation-fault
periodicity
Generating indicators of different periodicity in quantstrat
问题 I would like to use indicators of timeframes different to the data I am using. I have seen this asked a few time but no solutions as of yet (at least for me anyway). The below example uses daily stock data however the actual project uses intraday currency data. I have an easy work around for importing the intraday csv data now so the example and real-world should be interchangeable enough. library(quantstrat) initDate="2000-01-01" from="2003-01-01" to="2016-12-31" #set account currency and
How to repeat an action every day in an Android app?
问题 I want to repeat an action every day; it must continue working even if the app is not running or the device has been restarted (rebooted). In my code I'm trying to show a TOAST message every 1 minute (as a test); it's working fine in the emulator but on a real device it doesn't work( i tried to do some changes to fixed as i see in some answers but still the same thing) MyReceiver class MyReceiver : BroadcastReceiver() { private val channelId = "com.medanis.hikamwahimam" override fun onReceive
How to repeat an action every day in an Android app?
I want to repeat an action every day; it must continue working even if the app is not running or the device has been restarted (rebooted). In my code I'm trying to show a TOAST message every 1 minute (as a test); it's working fine in the emulator but on a real device it doesn't work( i tried to do some changes to fixed as i see in some answers but still the same thing) MyReceiver class MyReceiver : BroadcastReceiver() { private val channelId = "com.medanis.hikamwahimam" override fun onReceive(context: Context, intent: Intent) { Log.i("TAG","/////////////////// SHOW NOTIFICATION NOW ///////////
How to call a method / function periodically? (time.sleep fails) [duplicate]
问题 This question already has answers here : How do I create an automatically updating GUI using Tkinter? (4 answers) Closed last year . How can I call update periodically? I tried the following but it skips showing GUI for the limit seconds and then shows only the last update: import tkinter as tk import time root = tk.Tk() widget = tk.Label(root, text="Initial text") widget.pack() def update(): global widget limit = 3 period = 1 for each in range(limit): widget['text'] = each time.sleep(period)