search for: tsconnection

Displaying 2 results from an estimated 2 matches for "tsconnection".

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2007 Jul 16
1
S4 coerce
...m, dbname="test") > dbGetQuery(con, "create table zzz ( + vintage VARCHAR(20) NOT NULL, + alias VARCHAR(20) default NULL, + Documentation TEXT, + PRIMARY KEY (vintage) + );") NULL > dbListTables(con) [1] "zzz" > setClass("TSconnection", representation(con="DBIConnection", + vintage = "logical", + panel = "logical") + ) [1] "TSconnection" > setAs("TSconnection", "DBIConnection", def = function(from) from at con) > setIs("TSconnection", &...
2010 May 14
1
S4 default/missing args
...to do that in S4 as shown by this simplified example: setGeneric("TSdoc", def= function(x, con, ...) standardGeneric("TSdoc")) setMethod("TSdoc", signature(x="character", con="missing"), definition= function(x, con=getOption("TSconnection"), ...){ if(is.null(con)) stop("con should be specified or set with options(TSconnection=con).") else return('ok')} ) Then when I try TSdoc("B103") In my original problem I got Error in is.null(con) : 'con' is missi...