本文介绍了pkgsearch：as.POSIXct.default（date）中的错误：不知道如何将“ date”转换为类“ POSIXct”的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
R包 pkgsearch 在使用 dplyr select 命令时会引发以下错误/ code>：
The R package pkgsearch throws the following error when using select command from dplyr:
请提供任何帮助。
library(tidyverse)
#> Registered S3 methods overwritten by 'ggplot2':
#> method from
#> [.quosures rlang
#> c.quosures rlang
#> print.quosures rlang
library(pkgsearch)
PkgMYaseen208 <-
pkg_search(
query = "Yaseen"
, format = c("short", "long")[1]
, from = 1
, size = 25
) %>%
arrange(package)
PkgMYaseen208
#> - "Yaseen" -------------------------------- 20 packages in 0.009 seconds -
#> # package version by @ title
#> 1 65 agriTutorial 0.1.4 Rodney Edmondson 9M Tutorial Analysis...
#> 2 88 bayesammi 0.1.0 Muhammad Yaseen 1y Bayesian Estimati...
#> 3 100 baystability 0.1.0 Muhammad Yaseen 1y Bayesian Stabilit...
#> 4 91 DiallelAnalysisR 0.1.1 Muhammad Yaseen 3y Diallel Analysis ...
#> 5 88 dmai 0.4.0 Muhammad Yaseen 6d Divisia Monetary ...
#> 6 91 eda4treeR 0.2.0 Muhammad Yaseen 1y Experimental Desi...
#> 7 97 gvcR 0.1.0 Muhammad Yaseen 1y Genotypic Varianc...
#> 8 91 PakPC2017 1.0.0 Muhammad Yaseen 1y Pakistan Populati...
#> 9 91 PakPMICS2014Ch 0.1.0 Muhammad Yaseen 2y Multiple Indicato...
#> 10 94 PakPMICS2014HH 0.1.0 Muhammad Yaseen 2y Multiple Indicato...
#> 11 98 PakPMICS2014HL 0.1.0 Muhammad Yaseen 2y Multiple Indicato...
#> 12 94 PakPMICS2014Wm 0.1.0 Muhammad Yaseen 2y Multiple Indicato...
#> 13 91 ppcSpatial 0.2.0 Muhammad Yaseen 1y Spatial Analysis ...
#> 14 94 PSLM2015 0.2.0 Muhammad Yaseen 1y Pakistan Social a...
#> 15 86 qccrs 0.1.0 Muhammad Yaseen 6M Quality Control C...
#> 16 87 rgsp 0.2.0 Muhammad Yaseen 7M Repetitive Group ...
#> 17 98 stability 0.5.0 Muhammad Yaseen 8M Stability Analysi...
#> 18 96 StroupGLMM 0.1.0 Muhammad Yaseen 3y R Codes and Datas...
#> 19 88 SupMZ 0.1.0 Muhammad Yaseen 13h Detecting Structu...
#> 20 87 VetResearchLMM 1.0.0 Muhammad Yaseen 1y Linear Mixed Mode...
PkgMYaseen208 %>%
dplyr::select(package)
#> - "Yaseen" -------------------------------- 20 packages in 0.009 seconds -
#> Warning: Unknown or uninitialised column: 'score'.
#> Warning: Unknown or uninitialised column: 'version'.
#> Warning: Unknown or uninitialised column: 'maintainer_name'.
#> Warning: Unknown or uninitialised column: 'date'.
#> Error in as.POSIXct.default(date): do not know how to convert 'date' to class "POSIXct"
推荐答案
这可能是数据集（ str（PkgMYaseen208））属性的问题。一种选择是转换为 data.frame ，然后 select
It could be an issue with the attributes of the dataset (str(PkgMYaseen208)). One option is to convert to data.frame and then select
library(dplyr)
PkgMYaseen208 %>%
as.data.frame %>%
dplyr::select(package)
# package
#1 agriTutorial
#2 bayesammi
#3 baystability
#4 DiallelAnalysisR
#5 dmai
#6 eda4treeR
#7 gvcR
#8 PakPC2017
#9 PakPMICS2014Ch
#10 PakPMICS2014HH
#1 PakPMICS2014HL
#2 PakPMICS2014Wm
#3 ppcSpatial
#4 PSLM2015
#15 qccrs
#16 rgsp
#17 stability
#18 StroupGLMM
#19 SupMZ
#20 VetResearchLMM
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