How to *completely* stop a script after stop()?

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Re: [R] How to *completely* stop a script after stop()?

Duncan Murdoch 

to:

algorimancer

04/08/2011 12:40 PM

Sent by:

r-help-bounces at r-project.org

Cc:

r-help

On 08/04/2011 11:47 AM, algorimancer wrote:

I too am encountering this problem.  When I have a large script, if I 

all in the editor and then ctrl-r to run, if it encounters a stop() 

it simply prints an error message and continues to execute the 

the script, as opposed to terminating execution at that line.  The 

function exits R altogether, which I don't want.  Yes, I could 

select only the portion of script which I want to run, but for lengthy
scripts which I run repeatedly (generally changing only the name of 

I want analyzed), this can be quite tedious.  It appears that the only
solution is to put most of the code in a separate file and call it 

source(); this has the downside of reducing the clarity of the code -- 

a sort-of structural spaghetti code approach.

It sounds as though you are talking about the Windows GUI.  That's 
important, because other GUIs probably have different behaviour.

To run a script up to the first error, do this:

Highlight the part you want to run (or Ctrl-a for everything).
Copy the code using Ctrl-c.
In the console, run source("clipboard") (perhaps with echo=TRUE if you 
want to see it as it goes).  This is a lot of typing the first time you 
do it, but after that, the up arrow can bring back the command.

It would probably make sense for Ctrl-R to do something functionally 
equivalent to Ctrl-C, source("clipboard", echo=TRUE) rather than the 
current behaviour.  Not going to happen in 2.13.x, but maybe in 2.14.x 
in the fall.

Duncan Murdoch

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