class(comments) "tbl_df" "tbl" "data.frame" I tried to convert list into dataframe by using as.data.frame(), that didn't change the type, I also tried wrapping it into as.dataframe(matrix(unlist(comments))), that didn't change the type as well commentData <- ...
Error in UseMethod("recode") : no applicable method for 'recode' applied to an object of class "c('tbl_df', 'tbl', 'data.frame')" Contributor cderv commented Sep 2, 2018 recode is a function that applies on vector only, not data.frame or tibble as the error says. See ?recode ...
,class=c("tbl_df","tbl","data.frame")) EDIT: Running output from @Marco_CH's code: Warning messages: 1:In strptime(xx,f,tz=tz):unknown timezone'CST' 2:In as.POSIXct.POSIXlt(x):unknown timezone'CST' 3:In strptime(x,f,tz=tz):unknown timezone'CST' 4:In as.P...
.NET C# use a string variable to reference the control name .net core 3.1 finding replacment for HttpContext.ActionContext.ActionArguments .net core 3.1 Microsoft.Extensions.Logging.Log4Net.AspNetCore not logging to a file .Net Framework vs .Net Runtime .net framework 3.5 MAC OS .Net Framework...
NOT_KILLED : THDNOT_KNOWN_SYSTEM_TABLE : st_sys_tbl_chk_paramsnot_null_tables() : Item, Item_date_literal, Item_datetime_literal, Item_func, Item_func_nop_all, Item_func_not_all, Item_outer_ref, Item_ref, Item_row, Item_subselect, Item_sum, Item_time_literal, NESTED_JOIN...
Warning: Error in : Don't know how to coerce an object of class 'tbl_df/tbl/data.frame' into a 'sheets_id' That makes it sound like you've successfully created a data frame, but then are providing it to an argument that's meant to hold a Sheet ID. Without actual working (or ...
14 @@ +CREATE DATABASE regression_tbd ENCODING utf8 LOCALE "C" TEMPLATE template0; +ALTER DATABASE regression_tbd RENAME TO regression_utf8; +ALTER DATABASE regression_utf8 SET TABLESPACE regress_tblspace; +ALTER DATABASE regression_utf8 RESET TABLESPACE; +ALTER DATABASE regression_utf8 ...
不能使用==来比较class的返回值,因为它的返回值的长度是可变的:
Team-based Learning (TBL) has sound conceptual and empirical backing and is seeing growing partial and full adoption in economics. However, perceived implementation costs and risk remain high for many instructors wary of fully implementing TBL. Additionally, common economics problems are often ill-...
mtcarsTBL %>% fgroup_by(cyl) %>% fselect(mpg, disp, drat, wt) %>% fmean(wt) ## # A tibble: 3 x 5 ## cyl sum.wt mpg disp drat ## <dbl> <dbl> <dbl> <dbl> <dbl> ## 1 4 25.1 25.9 110. 4.03 ## 2 6 21.8 19.6 185. 3.57 ...