# May there is a bug in notebook

I'd like to use R in notebook worksheet. I mean, I have the R evaluation chosen at the top, and when I use TAB to call auto completion I do not get correct names.

For example,after I hit "shapiro" and press TAB ,the auto-completion returns "shapiro_test",but in R,this function is "shapiro.test".

Many other function with "." are returned instead of "_".Is there any solution?

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This is a feature, not a bug! In Python, . means a namespace, so we convert dots to underscores. This test should work.

sage: S = r.rnorm(10, mean = 5, sd = 3)
sage: S
[1]  8.252611  7.721551  5.291445  4.129569 -2.235594  1.466262  4.235228  7.557193  3.338087
[10] 10.203015
sage: r.shapiro_test(S)

Shapiro-Wilk normality test

data:  sage8
W = 0.9619, p-value = 0.8068


Seems ok.

sage: r_console()

R version 2.14.0 (2011-10-31)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
<snip>
> shapiro.test(rnorm(10, mean = 5, sd = 3))

Shapiro-Wilk normality test

data:  rnorm(10, mean = 5, sd = 3)
W = 0.9415, p-value = 0.5698

more

I know that when calls R with Sage,the dot will convert to underscores.But even when I set the "system" to R with combo box above in notebook,the dot will convert to underscores,and that is the problem.

( 2012-05-13 02:29:48 +0200 )edit

Ah! That was not at *all* clear in the original, but I have edited the original question a little bit to make this clear. I figure that any of the interfaces there will do that, it's an interesting point.

( 2012-05-14 13:19:22 +0200 )edit

I've opened http://trac.sagemath.org/sage_trac/ticket/13070 for this, though I'm not sure how easy it would be to fix.

( 2012-05-31 15:00:02 +0200 )edit

This is now also https://github.com/sagemath/sagenb/issues/103, though it's unclear whether the problem is in Sage or sagenb.

( 2012-10-22 21:38:55 +0200 )edit