r - Preserve Date format after APPLY -


i have been trying convert character vector vector of dates. have vector called "dates" character. used function "lubridate" package convert posixct format. when individually convert each every element posixct , bind them using c(), desired output, i.e "dates_final".

when try use apply function same output, gives me numeric vector. there way preserve format while applying function?

this example. in original dataset, dates in different formats characters, have written custom function detects formats each every type of date , parses them, , outputs posixct format. if dates in same format in whole data not have been problem.

the data set has millions of records. cannot possibly use loop.

library(lubridate)  dates <- c("01-05-2015 00:10","01-05-2015 00:15",             "01-05-2015 00:15","01-05-2015 00:42")  dates_actaul_1 <- dmy_hm(dates[1]) dates_actaul_2 <- dmy_hm(dates[2]) dates_actaul_3 <- dmy_hm(dates[3]) dates_actaul_4 <- dmy_hm(dates[4])  dates_final <- c(dates_actaul_1,dates_actaul_2,dates_actaul_3,dates_actaul_4) dates_final [1] "2015-05-01 05:40:00 ist" "2015-05-01 05:45:00 ist" [3] "2015-05-01 05:45:00 ist" "2015-05-01 06:12:00 ist"  dates_applied <- apply(x = data.frame(dates),margin = 1,fun = dmy_hm) dates_applied [1] 1430439000 1430439300 1430439300 1430440920


Comments

Post a Comment

Popular posts from this blog

javascript - Google App Script ContentService downloadAsFile not working -

i have web app developed using google app script htmlservice , html form, populating excel sheet in google drive using spreadsheetapp . , 1 section calling contentservice download data excel file. function doget(e) { // read excel sheet //getappfile(); // render application html template return htmlservice.createtemplatefromfile('index').evaluate() .settitle('go smart') .setsandboxmode(htmlservice.sandboxmode.iframe); } function downloaddoublequatecsvfile() { var sheetid = propertiesservice.getscriptproperties().getproperty('sheetid'); var ss = spreadsheetapp.openbyid(sheetid).getactivesheet(); //var ss = spreadsheetapp.getactivespreadsheet().getactivesheet(); var maxcolumn = ss.getlastcolumn(); var maxrow = ss.getlastrow(); var data = ss.getrange(1, 1, maxrow, maxcolumn).getvalues(); if (data.length > 1) { var csv = ""; (var row = 0; row < data.length; row++) { (var c...
Read more

javascript - Function overwritting -

is there way overwrite function or event handling in function? using addeventlistener, can have many event handlers on element want var test=document.getelementbyid("div"); test.addeventlistener("click",function(){alert("im first");},false); test.addeventlistener("click",function(){alert("im second");},false); // alerts "im first" , after "im second" but if want overwrite function/event example based on client width example this function one() { alert("first"); } function two() { alert("second"); } window.onresize = function() { var test = document.getelementbyid("div"); if (window.innerwidth > 500) { test.onclick = 1 } else { test.onclick = two; } } is possible in javascript? in case use effective little known approach. addeventlistener can accept object property handleevent event handler. in case it's easy overwr...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more