Question

我的日期框架2017-03-14T20:14:44.000000+00:00 app[api]: Build succeeded 2017-03-14T20:14:59.777446+00:00 app[api]: Release v9 created by user corey.archharr@gmail.com 2017-03-14T20:14:59.941332+00:00 heroku[web.1]: State changed from crashed to starting 2017-03-14T20:15:02.970234+00:00 heroku[web.1]: Starting process with command `node server.js` 2017-03-14T20:15:05.774946+00:00 app[web.1]: 2017-03-14T20:15:05.774962+00:00 app[web.1]: events.js:160 2017-03-14T20:15:05.774963+00:00 app[web.1]: throw er; // Unhandled 'error' event 2017-03-14T20:15:05.774964+00:00 app[web.1]: ^ 2017-03-14T20:15:05.776680+00:00 app[web.1]: MongoError: Authentication failed. 2017-03-14T20:15:05.776682+00:00 app[web.1]: at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11) 2017-03-14T20:15:05.776683+00:00 app[web.1]: at /app/node_modules/mongodb-core/lib/connection/pool.js:483:72 2017-03-14T20:15:05.776684+00:00 app[web.1]: at authenticateStragglers (/app/node_modules/mongodb-core/lib/connection/pool.js:429:16) 2017-03-14T20:15:05.776685+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:319:22) 2017-03-14T20:15:05.776685+00:00 app[web.1]: at Connection.messageHandler (/app/node_modules/mongodb-core/lib/connection/pool.js:463:5) 2017-03-14T20:15:05.776686+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-03-14T20:15:05.776687+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-03-14T20:15:05.776688+00:00 app[web.1]: at readableAddChunk (_stream_readable.js:176:18) 2017-03-14T20:15:05.776689+00:00 app[web.1]: at TCP.onread (net.js:548:20) 2017-03-14T20:15:05.776688+00:00 app[web.1]: at Socket.Readable.push (_stream_readable.js:134:10) 2017-03-14T20:15:05.851998+00:00 heroku[web.1]: Process exited with status 1 2017-03-14T20:15:05.849610+00:00 heroku[web.1]: State changed from starting to crashed 2017-03-14T20:15:05.850669+00:00 heroku[web.1]: State changed from crashed to starting 2017-03-14T20:15:09.046484+00:00 heroku[web.1]: Starting process with command `node server.js` 2017-03-14T20:15:12.712501+00:00 heroku[web.1]: Process exited with status 1 2017-03-14T20:15:12.632012+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:319:22) 2017-03-14T20:15:12.630846+00:00 app[web.1]: 2017-03-14T20:15:12.632015+00:00 app[web.1]: at TCP.onread (net.js:548:20) 2017-03-14T20:15:12.630864+00:00 app[web.1]: events.js:160 2017-03-14T20:15:12.632013+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-03-14T20:15:12.630866+00:00 app[web.1]: throw er; // Unhandled 'error' event 2017-03-14T20:15:12.632014+00:00 app[web.1]: at readableAddChunk (_stream_readable.js:176:18) 2017-03-14T20:15:12.630866+00:00 app[web.1]: ^ 2017-03-14T20:15:12.632015+00:00 app[web.1]: at Socket.Readable.push (_stream_readable.js:134:10) 2017-03-14T20:15:12.632008+00:00 app[web.1]: MongoError: Authentication failed. 2017-03-14T20:15:12.632013+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-03-14T20:15:12.632010+00:00 app[web.1]: at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11) 2017-03-14T20:15:12.632011+00:00 app[web.1]: at /app/node_modules/mongodb-core/lib/connection/pool.js:483:72 2017-03-14T20:15:12.632011+00:00 app[web.1]: at authenticateStragglers (/app/node_modules/mongodb-core/lib/connection/pool.js:429:16) 2017-03-14T20:15:12.632012+00:00 app[web.1]: at Connection.messageHandler (/app/node_modules/mongodb-core/lib/connection/pool.js:463:5) 2017-03-14T20:15:12.729762+00:00 heroku[web.1]: State changed from starting to crashed 2017-03-14T20:15:54.013766+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=thawing-chamber-22079.herokuapp.com request_id=13034e5e-049a-42c6-a0b7-37c3f769d416 fwd="209.49.17.173" dyno= connect= service= status=503 bytes= protocol=https 2017-03-14T20:15:54.509374+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=thawing-chamber-22079.herokuapp.com request_id=f0c7f03e-db03-4efc-ba84-cb21e79d31d8 fwd="209.49.17.173" dyno= connect= service= status=503 bytes= protocol=https 2017-03-14T20:18:26.328705+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=thawing-chamber-22079.herokuapp.com request_id=59a6218c-44ef-4c69-b712-173c6b438782 fwd="209.49.17.173" dyno= connect= service= status=503 bytes= protocol=https 2017-03-14T20:18:26.757058+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=thawing-chamber-22079.herokuapp.com request_id=59c15c21-f2b2-4266-b5c7-2c7367e4c136 fwd="209.49.17.173" dyno= connect= service= status=503 bytes= protocol=https 2017-03-14T20:42:56.872743+00:00 heroku[web.1]: State changed from crashed to starting 2017-03-14T20:43:00.417848+00:00 heroku[web.1]: Starting process with command `node server.js` 2017-03-14T20:43:03.592709+00:00 app[web.1]: 2017-03-14T20:43:03.592728+00:00 app[web.1]: events.js:160 2017-03-14T20:43:03.592729+00:00 app[web.1]: throw er; // Unhandled 'error' event 2017-03-14T20:43:03.592730+00:00 app[web.1]: ^ 2017-03-14T20:43:03.593930+00:00 app[web.1]: MongoError: Authentication failed. 2017-03-14T20:43:03.593932+00:00 app[web.1]: at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11) 2017-03-14T20:43:03.593933+00:00 app[web.1]: at /app/node_modules/mongodb-core/lib/connection/pool.js:483:72 2017-03-14T20:43:03.593933+00:00 app[web.1]: at authenticateStragglers (/app/node_modules/mongodb-core/lib/connection/pool.js:429:16) 2017-03-14T20:43:03.593934+00:00 app[web.1]: at Connection.messageHandler (/app/node_modules/mongodb-core/lib/connection/pool.js:463:5) 2017-03-14T20:43:03.593934+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:319:22) 2017-03-14T20:43:03.593935+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-03-14T20:43:03.593935+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-03-14T20:43:03.593936+00:00 app[web.1]: at readableAddChunk (_stream_readable.js:176:18) 2017-03-14T20:43:03.593936+00:00 app[web.1]: at Socket.Readable.push (_stream_readable.js:134:10) 2017-03-14T20:43:03.593937+00:00 app[web.1]: at TCP.onread (net.js:548:20) 2017-03-14T20:43:03.686941+00:00 heroku[web.1]: Process exited with status 1 2017-03-14T20:43:03.707557+00:00 heroku[web.1]: State changed from starting to crashed 2017-03-14T21:40:18.936675+00:00 heroku[web.1]: State changed from crashed to starting 2017-03-14T21:40:21.858760+00:00 heroku[web.1]: Starting process with command `node server.js` 2017-03-14T21:40:25.337623+00:00 heroku[web.1]: Process exited with status 1 2017-03-14T21:40:25.209569+00:00 app[web.1]: 2017-03-14T21:40:25.209587+00:00 app[web.1]: events.js:160 2017-03-14T21:40:25.209589+00:00 app[web.1]: throw er; // Unhandled 'error' event 2017-03-14T21:40:25.209590+00:00 app[web.1]: ^ 2017-03-14T21:40:25.211925+00:00 app[web.1]: MongoError: Authentication failed. 2017-03-14T21:40:25.211928+00:00 app[web.1]: at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11) 2017-03-14T21:40:25.211930+00:00 app[web.1]: at authenticateStragglers (/app/node_modules/mongodb-core/lib/connection/pool.js:429:16) 2017-03-14T21:40:25.211929+00:00 app[web.1]: at /app/node_modules/mongodb-core/lib/connection/pool.js:483:72 2017-03-14T21:40:25.211931+00:00 app[web.1]: at Connection.messageHandler (/app/node_modules/mongodb-core/lib/connection/pool.js:463:5) 2017-03-14T21:40:25.211931+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:319:22) 2017-03-14T21:40:25.211932+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-03-14T21:40:25.211932+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-03-14T21:40:25.211933+00:00 app[web.1]: at readableAddChunk (_stream_readable.js:176:18) 2017-03-14T21:40:25.211934+00:00 app[web.1]: at Socket.Readable.push (_stream_readable.js:134:10) 2017-03-14T21:40:25.211934+00:00 app[web.1]: at TCP.onread (net.js:548:20) 2017-03-14T21:40:25.353825+00:00 heroku[web.1]: State changed from starting to crashed 2017-03-14T23:09:56.515355+00:00 heroku[web.1]: State changed from crashed to starting 2017-03-14T23:09:59.150824+00:00 heroku[web.1]: Starting process with command `node server.js` 2017-03-14T23:10:01.803320+00:00 heroku[web.1]: Process exited with status 1 2017-03-14T23:10:01.745328+00:00 app[web.1]: 2017-03-14T23:10:01.745344+00:00 app[web.1]: events.js:160 2017-03-14T23:10:01.745349+00:00 app[web.1]: throw er; // Unhandled 'error' event 2017-03-14T23:10:01.745349+00:00 app[web.1]: ^ 2017-03-14T23:10:01.746159+00:00 app[web.1]: MongoError: Authentication failed. 2017-03-14T23:10:01.746161+00:00 app[web.1]: at Function.MongoError.create (/app/node_modules/mongodb-core/lib/error.js:31:11) 2017-03-14T23:10:01.746162+00:00 app[web.1]: at /app/node_modules/mongodb-core/lib/connection/pool.js:483:72 2017-03-14T23:10:01.746163+00:00 app[web.1]: at authenticateStragglers (/app/node_modules/mongodb-core/lib/connection/pool.js:429:16) 2017-03-14T23:10:01.746163+00:00 app[web.1]: at Connection.messageHandler (/app/node_modules/mongodb-core/lib/connection/pool.js:463:5) 2017-03-14T23:10:01.746164+00:00 app[web.1]: at Socket.<anonymous> (/app/node_modules/mongodb-core/lib/connection/connection.js:319:22) 2017-03-14T23:10:01.746165+00:00 app[web.1]: at emitOne (events.js:96:13) 2017-03-14T23:10:01.746165+00:00 app[web.1]: at Socket.emit (events.js:188:7) 2017-03-14T23:10:01.746166+00:00 app[web.1]: at readableAddChunk (_stream_readable.js:176:18) 2017-03-14T23:10:01.746167+00:00 app[web.1]: at Socket.Readable.push (_stream_readable.js:134:10) 2017-03-14T23:10:01.746167+00:00 app[web.1]: at TCP.onread (net.js:548:20) 2017-03-14T23:10:01.820453+00:00 heroku[web.1]: State changed from starting to crashed看起来像这样：

df

以“M01”，“M02”等形式写的月份等等。现在我想将此列转换为日期格式，有没有办法在R中使用lubridate进行此操作？

我还想选择每年包含一个月的列，例如这些年来只有3月的列，最好的方法是什么？

Answer 1

简短的回答是日期需要一年，一个月和一天，因此您无法直接转换为日期格式。你有2个选择。

选项1：使用zoo::as.yearmon转换为年月格式。

library(zoo)
df$yearmon <- as.yearmon(df$month, "%YM%m")
# you can get e.g. month from that
months(df$yearmon[1])
# [1] "January"

选项2：假设日期始终是该月的第一天，转换为日期。

df$date <- as.Date(paste(df$month, "01", sep = "-"), "%YM%m-%d")

对于选择（我认为你的意思是选择行而不是列），你已经拥有了所需的一切。例如，要仅选择2013年3月：

library(dplyr)
df %>% filter(month == "2013M03")

Answer 2

这样的事情会得到它：

raw <- "2012M01"

dt <- strptime(raw,format = "%YM%m")

dt将采用Posix格式。 strptime函数将指定一个＆＃39; 1＆＃39;作为完整日期的默认日期。

将“2015M01”形式的变量转换为R中的日期格式？

2 个答案: