Knitr::opts_chunk$set(echo = TRUE, warning = FALSE, message = FALSE)
#Could not find function windows r code#
So, if you change the existing line of code that sets knitr options to be: This seems strange since I am not modifying the connection in any way before leaving the function. However, I can connect to the database just fine using dbConnect() directly but I can not connect to it using the object returned by the function. Adding warning = FALSE and message = FALSE will suppress warnings and messages when you knit. The function only calls dbConnect() and does not do anything else (see below). At present they just say to include the code ( echo=TRUE) unless you over-ride that in the header of the code chunk. These are the global options for knitting. The template markdown file will have a line of code something like this: You should check these warnings before knitting to make sure they’re not important, but if they can be ignored and you want to suppress them in the knitted document, then you can do this using the knitr options in your first code chunk. Using default calcuation.No class or unkown class. R will tell us it cannot find the requested function (in this case agnes.
Using default calcuation.No class or unkown class. You can also write your code in the script file (the top left window). The warning looks like this: No class or unkown class. It assumes the data are numeric, and they are so we can ignore these warnings. For example, within my tutorials the ci() function throws a warning about not recognizing the class of data being entered into it. these are not errors as such - the code executes, but the function wants to alert you to a potential problem. In general, look for keywords in error messages and then check your syntax. position + position_jitter(width = 0.1, height = 0) should have been: `position = position_jitter(width = 0.1, height = 0)’.The second error was because of including a + instead of an =: colour = #E69F00" should have been: colour = "#E69F00".The first error was because of a missing " before the hash: These particular errors were thrown by this command: geom_point(colour = #E69F00", position + position_jitter(width = 0.1, height = 0)) Debug these by looking for where you specified colour and position and check the syntax. The clues here are the references to ‘colour’ and ‘position’ both of which were arguments within the function that was being executed. For example: Error: Aesthetics must be either length 1 or the same as the data (28): colourError in layer(data = data, mapping = mapping, stat = stat, geom = GeomPoint, :object 'position' not found These errors can be tricky to debug because the resulting messages are often fairly unhelpful. For example, in goem_point(size = 5), size = 5 is an argument. Arguments are the stuff in brackets after a function name. These are probably the most common and relate to you mis-specifying an argument within a function.
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