DOC example robust_models_1 missing link and R error

[josef-pkt]

link on landing page is wrong because of typo
typo: should be models with s at the end
https://github.com/statsmodels/statsmodels/blob/master/docs/source/examples/landing.json#L100

robust_models_1 was not edited in https://github.com/statsmodels/statsmodels/pull/1445/files
was this an oversight or nothing to do?

also
http://statsmodels.sourceforge.net/devel/examples/notebooks/generated/robust_models_1.html
contains rmagic which is not calculated/rendered in the notebook

%load_ext rmagic

%R library(robustbase)
%Rpush yy xx
%R mod <- lmrob(yy ~ xx);
%R params <- mod$coefficients;
%Rpull params

Error in X11(paste("png::", filename, sep = ""), g$width, g$height, pointsize,  :
  unable to start device PNG
In addition: Warning message:
In png("/tmp/tmpiRnqij/Rplots%03d.png", ) :
  unable to open connection to X11 display ''

[josef-pkt]

I could fix the typo in the json file, but I don't know about the rest.

[jseabold]

Go ahead and fix the typo, if you don't mind. I thought I fixed the R magic by installing robustbase on that machine (it's been broken for a while). I'll have to see what I can do about connecting the cronjob to an X11 display. There really shouldn't be any reason for an X11 call in that code from what I can tell, so I think that's a rpy2 problem. I should be able to connect to a display from cron though.

[jseabold]

Nm, it looks like it's coming from IPython.

[jseabold]

ipython/ipython#5329

[jseabold]

There was nothing to do in robust_models_1. Most of the other commits were just changing fig sizes to look a little better. Also, IPython seems to be stepping on the name attribute in cells so a lot of changes were do nothing changes.

[jseabold]

I think it's no longer part of the nbformat spec in 2.0 going forward, so the name="" might get changed as we make changes / save things.

[josef-pkt]

Ok, I'll fix the typo

[bashtage]

@josef-pkt This has been fixed. Closeable.

[josef-pkt]

ancient issue, closing

@bashtage Thanks for finding it