Combine Date and Time columns using python pandas -

-

i have pandas dataframe following columns;

date              time 01-06-2013      23:00:00 02-06-2013      01:00:00 02-06-2013      21:00:00 02-06-2013      22:00:00 02-06-2013      23:00:00 03-06-2013      01:00:00 03-06-2013      21:00:00 03-06-2013      22:00:00 03-06-2013      23:00:00 04-06-2013      01:00:00

how combine data['date'] & data['time'] following? there way of doing using pd.to_datetime?

date 01-06-2013 23:00:00 02-06-2013 01:00:00 02-06-2013 21:00:00 02-06-2013 22:00:00 02-06-2013 23:00:00 03-06-2013 01:00:00 03-06-2013 21:00:00 03-06-2013 22:00:00 03-06-2013 23:00:00 04-06-2013 01:00:00

it's worth mentioning may have been able read in directly e.g. if using read_csv using parse_dates=[['date', 'time']].

assuming these strings add them (with space), allowing apply to_datetime:

in [11]: df['date'] + ' ' + df['time'] out[11]: 0    01-06-2013 23:00:00 1    02-06-2013 01:00:00 2    02-06-2013 21:00:00 3    02-06-2013 22:00:00 4    02-06-2013 23:00:00 5    03-06-2013 01:00:00 6    03-06-2013 21:00:00 7    03-06-2013 22:00:00 8    03-06-2013 23:00:00 9    04-06-2013 01:00:00 dtype: object  in [12]: pd.to_datetime(df['date'] + ' ' + df['time']) out[12]: 0   2013-01-06 23:00:00 1   2013-02-06 01:00:00 2   2013-02-06 21:00:00 3   2013-02-06 22:00:00 4   2013-02-06 23:00:00 5   2013-03-06 01:00:00 6   2013-03-06 21:00:00 7   2013-03-06 22:00:00 8   2013-03-06 23:00:00 9   2013-04-06 01:00:00 dtype: datetime64[ns]

note: surprisingly (for me), works fine nans being converted nat, worth worrying conversion (perhaps using raise argument).


Comments

Post a Comment

Popular posts from this blog

c++ - Creating new partition disk winapi -

-
i'am trying create new partition , mount volume new, thought createfile let me this, code : lpctstr lpfilename=l"\\\\.\\device\\harddisk0\\partition3"; handle handl=createfile( lpfilename, generic_read | generic_write, file_share_read | file_share_write, null, create_always, file_attribute_normal, null ); if (handl==invalid_handle_value) { qdebug()<<"handl invalid"<<" error"<<getlasterror();} bool success = definedosdevice(ddd_raw_target_path,l"i:",l"\\device\\harddisk0\\partition3"); if(!success) qdebug()<<" definedosdevice failed "<<getlasterror(); bflag = getvolumenameforvolumemountpoint( l"i:\\", // input volume mount point or directory /** u in dir
Read more

Android Prevent Bluetooth Pairing Dialog -

-
i'm developing internal application uses bluetooth printing. want bluetooth pairing occur without user input. have managed working trapping android.bluetooth.device.action.pairing_request broadcast. in broadcast receiver call setpin method, , pairing works ok, bluetoothpairingdialog displayed second or two, disappears - see link below. https://github.com/android/platform_packages_apps_settings/blob/master/src/com/android/settings/bluetooth/bluetoothpairingdialog.java since broadcast non-ordered, can't call abortbroadcast() , , wondering if there other way prevent pairing dialog appearing. can hook window manager in way? i haven't been able come way without modifying sdk. if you're oem, it's easy (i'm on 4.3): in packages/apps/settings/androidmanifest.xml, comment intent filter pairing dialog: <activity android:name=".bluetooth.bluetoothpairingdialog" android:label="@string/bluetooth_pairing_request"
Read more

VBA function to include CDATA -

-
i have following function include cdata: function cdatasection() dim objdom domdocument dim objkmlrootelement ikmldomelement dim objkmlelement ikmldomelement dim cdata ikmldomcdatasection set objdom = new domdocument set objkmlrootelement = objdom.createelement("balloonstyle") objdom.appendchild objkmlrootelement set objkmlelement = objdom.createelement("text") objkmlrootelement.appendchild objkmlelement set cdata = objdom.createcdatasection("text") cdata.data = "<![cdata[<b>latitude = $[latitude]</b>?]]>;" end function when run above, getting error "user defined data type not found" function. yes ripster says find library reference. vba window tools>references for list of relevant references see... http://msdn.microsoft.com/en-us/library/windows/desktop/ms763701%28v=vs.85%29.aspx however, if have hard time tracking down reference, replace dim sta
Read more