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how do I get data between two dates


how do I get data between two dates

By : Tauseeq
Date : November 22 2020, 11:17 AM
I wish did fix the issue. I would like to get data between two years, so from 1st of Jan to 1st of Jan, This is what i have done: , If you just want "the next year" it's simple:
code :
// Note: more descriptive variable names than "d" and "dd"
int thisYear = DateTime.Now.Year; // Note this is in the local time zone...
DateTime thisYearStart = new DateTime(thisYear, 1, 1);
DateTime nextYearStart = new DateTime(thisYear + 1, 1, 1);
int thisYear = DateTime.Now.Year;
DateTime thisYearStart = new DateTime(thisYear, 1, 1);
DateTime nextYearStart = thisYearStart.AddYears(1);
int thisYear = DateTime.Now.Year;
DateTime thisYearStart = new DateTime(thisYear, 1, 1);
DateTime thisYearEnd = thisYearStart.AddYears(1).AddTicks(-1);


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2 dfs both have a dates column in same period. 1 has no data on some dates leading to fewer rows. How do I (c)bind these

2 dfs both have a dates column in same period. 1 has no data on some dates leading to fewer rows. How do I (c)bind these


By : JS Moeller
Date : March 29 2020, 07:55 AM
To fix this issue I have these two dataframes that are examples of two different larger dataframes:
code :
merge(df1,df2,by.x="V1",by.y="X1",all=TRUE)

#           V1  V2 V3         X2  X3
# 1 2010-03-20   0  A  2.8407470 0.0
# 2 2010-03-21   0  A 12.2332100 0.0
# 3 2010-03-22   0  A  0.9924097 1.3
# 4 2010-03-23 0,7  A         NA  NA
# 5 2010-03-24   8  A 11.4940000 0.0
How can I subset a data frame based on dates, when my dates column is not the index in Python?

How can I subset a data frame based on dates, when my dates column is not the index in Python?


By : user2565044
Date : March 29 2020, 07:55 AM
Hope this helps Using pandas, you can first create a datetime column and then create a quarter column using the date/time quarter attribute:
code :
from datetime import datetime
date_format = "%Y-%m-%d %H:%M:%S"
df['datetime'] = [datetime.strptime(dt, date_format) for dt in df['date']]
df['quarter'] = [dt.quarter for dt in df['datetime']]
dfQ1 = df[df.quarter == 1]
dfQ2 = df[df.quarter == 2]
dfQ3 = df[df.quarter == 3]
dfQ4 = df[df.quarter == 4]
Filtering one data set using dates from another [also keeping data from one or two day prior dates]

Filtering one data set using dates from another [also keeping data from one or two day prior dates]


By : johnny chang
Date : March 29 2020, 07:55 AM
To fix this issue I have the following two datasets:- , To get the range of prior dates you could do this in base R
code :
# first get the sequence of 5 prior dates 
dates = do.call("c", lapply(split(wq_data, wq_data$Date), 
                     function(x) seq(as.Date(x$Date)-5, as.Date(x$Date)-1, 1)))

# use the sequence to select the dates from second data frame
Data_ppt[as.Date(Data_ppt$Date) %in% dates,]
How to get the Call Log data between two dates and Total number of incoming an outgoing calls between the dates

How to get the Call Log data between two dates and Total number of incoming an outgoing calls between the dates


By : imms
Date : March 29 2020, 07:55 AM
seems to work fine The below code is the solution for getting call log data between two dates.
code :
public class CallLogActivity extends Activity {


TextView textView;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_call_log);
    textView = (TextView) findViewById(R.id.textCallBetween);
    textView.setVisibility(View.GONE);
   // listcallLog = (ListView) findViewById(R.id.calllogItems);

    getCalldetails();


}

public void getCalldetails() {
    StringBuffer stringBuffer = new StringBuffer();

    String strOrder = android.provider.CallLog.Calls.DATE + " DESC";

    Calendar calender = Calendar.getInstance();


    calender.set(2016, calender.NOVEMBER, 18);
    String fromDate = String.valueOf(calender.getTimeInMillis());

    calender.set(2016, calender.NOVEMBER, 20);
    String toDate = String.valueOf(calender.getTimeInMillis());

    String[] whereValue = {fromDate,toDate};


    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_CALL_LOG) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }
    Cursor managedCursor = getContentResolver().query(CallLog.Calls.CONTENT_URI, null, android.provider.CallLog.Calls.DATE + " BETWEEN ? AND ?", whereValue, strOrder);

//   Cursor managedCursor = managedQuery(CallLog.Calls.CONTENT_URI, null, android.provider.CallLog.Calls.DATE, new String[]{" BETWEEN ? AND ?"}, strOrder);
    int number = managedCursor.getColumnIndex(CallLog.Calls.NUMBER);
    int type = managedCursor.getColumnIndex(CallLog.Calls.TYPE);
    int date = managedCursor.getColumnIndex(CallLog.Calls.DATE);
    int duration = managedCursor.getColumnIndex(CallLog.Calls.DURATION);

    stringBuffer.append("Call Log :");

    while (managedCursor.moveToNext())
    {
        String phoneNumber = managedCursor.getString(number);
        String callType = managedCursor.getString(type);
        String callDate = managedCursor.getString(date);
        SimpleDateFormat formatter = new SimpleDateFormat(
                "dd-MMM-yyyy HH:mm");
        String dateString = formatter.format(new Date(Long
                .parseLong(callDate)));
      //  Date callDayTime = new Date(Long.valueOf(callDate));
        String callDuration = managedCursor.getString(duration);



        String dir = null;

        int dirCode = Integer.parseInt(callType);



        switch (dirCode)
        {
            case CallLog.Calls.OUTGOING_TYPE :
                dir = "OUTGOING";
                break;

            case CallLog.Calls.INCOMING_TYPE:
                dir = "INCOMMING";
                break;
            case CallLog.Calls.MISSED_TYPE:
                dir = "MISSED CALL";
                break;

        }

        stringBuffer.append("\nPhone Number:--- " + phoneNumber + "\nCall Type:--- "
                + dir + "\nCall Date:---"
                + dateString + "\nCall Duration:---" + callDuration);
        stringBuffer.append("\n--------------------------");

    }

    textView.setText(stringBuffer);
    textView.setVisibility(View.VISIBLE);

}
How to replace NA data of specific dates with the average data of different years of same dates of a dataframe in R?

How to replace NA data of specific dates with the average data of different years of same dates of a dataframe in R?


By : Dani Porras
Date : March 29 2020, 07:55 AM
it helps some times This might work. It groups the months and days pairs and the replace the NAs from the mean.
code :
library(dplyr)
A <- A %>% 
       group_by(month, day, hour, minute) %>% 
       mutate(rain = ifelse(is.na(rain), 
                              mean(rain, na.rm=TRUE), rain))
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