search for: tryformat

Hi, You do not need to use third party packages for date or date/time objects in R. If you review ?as.Date, you will see that there are two default formats for Date objects that are specified in the 'tryFormats' argument: ??tryFormats = c("%Y-%m-%d", "%Y/%m/%d") If your date character vector does not conform to either one, which it does not in this case, then you need to explicitly specify the input format, the details of which are specified in ?strptime. Thus: > as.Date(&q...

This commit adds a function parameter to readtable. The function is called for every column. The goal is to allow specific (non-standard) type conversions depending on the input. When the parameter is not given, or the function returns NULL, the legacy default applies. The colClasses parameter still takes precedence, i.e. the colConvertFn only applies to the default conversions. This allows to

dear members, I want to convert "12 APR 2023" into a Date object. I tried as_Date() from lubridate, but it is not working: > as_date("12 APR 2023") [1] NA Warning message: All formats failed to parse. No formats found. > as_date("12-APR-2023") [1] NA Warning message: All formats failed to parse. No formats found. I am looking for a

...now be run even if one signals an error. * mclapply() gets an option affinity.list which allows more efficient execution with heterogeneous processors, thanks to Helena Kotthaus. * The character methods for as.Date() and as.POSIXlt() are more flexible _via_ new arguments tryFormats and optional: see their help pages. * on.exit() gains an optional argument after with default TRUE. Using after = FALSE with add = TRUE adds an exit expression before any existing ones. This way the expressions are run in a first-in last-out fashion. (From Lionel Henry...

...now be run even if one signals an error. * mclapply() gets an option affinity.list which allows more efficient execution with heterogeneous processors, thanks to Helena Kotthaus. * The character methods for as.Date() and as.POSIXlt() are more flexible _via_ new arguments tryFormats and optional: see their help pages. * on.exit() gains an optional argument after with default TRUE. Using after = FALSE with add = TRUE adds an exit expression before any existing ones. This way the expressions are run in a first-in last-out fashion. (From Lionel Henry...