shahuwang's profile - activity

Actually,Sage's plot module is a wrapper of matplotlib, so you can use Matplotlib directly

I think is the "sage",I mean the script file "sage" has no privilege to be executed. you can type this command to have a try: sudo chomd a+x /path/to/sage

I got a account of sage develop trac,which the user name is shahuwang,and I also map it to my real name on the list.Thanks again!

May be you can have a try of theano http://deeplearning.net/software/theano/

I see it,thanks to review it,wish I can help more

perhaps someone can forward this to the sage trac or provide it a tracking number (if the idea has not been considered already).

I found a perfect Emacs project ,which is called Emacs IPython Notebook. It can connect to a running IPython notebook server, and work as the IPython notebook do in browser.

Maybe it can provide some ideas for Sage-mode. Without syntax highlight and line number shown in the textarea, it is hard to deal with long code.

I update my question with my solution posted.

Yes , it is my pleasure.But I don't know how to do so, as I have no experience on software development. Is it ok to send Email to you to submit my solution?

I see that you post a problem in the "Trac 13161" of Korean , the problem is the same with me as matplotlib come with some fonts only support ASCII. So I think you should put more free fonts in matplotlib and make some change in matplotlibrc

It takes some time to set the matplotlibrc file,as it come with no font that support Chinese.It seems that there are only fonts that support ASCII .I wish next released to get the matplotlibrc setted to support unicode and with some free fonts to support non-ASCII used countries such as China,Japan. Wish to help more

My answer

I know that Matplotlib does not support UTF-8 without some change in matplotlibrc,So I edit the matplotlibrc and now when plot with matplotlib in sagenb,it supports UTF-8 now and it can show Chinese now.
But for the sage plot function, when I want to set label with some Chinese characters,it raise exception :
UnicodeEncodeError: 'ascii' codec can't encode character u'\u6211' in position 0: ordinal not in range(128).
After I set the default encoding to UTF-8 in site.py,this exception does not raise again,but the Chinese characters are shown as box like []. Below is my code:

p1=plot(sin,(-2*pi,2*pi),thickness=2.0,rgbcolor=(0.5,1,0),legend_label='sin(x)')
p2=plot(cos,(-2*pi,2*pi),thickness=3.0,color='purple',alpha=0.5,legend_label='cos(x)')
plt=p1+p2
x = u'\xd6\xd0\xb9\xfa\xc8\xcb'

plt.axes_labels((x,'y'))
show(plt)

Is there any solution? I am sorry, it seems that this web site does not support Chinese, so I change the x

Two setup to do so: command:sage -f r it will rebuilt the R in sage to enable plotting support. and then: png() x<-c(12,2,4) y<-x plot(x,y) dev.off()

The current way to do this is

r('cars').subset(select='"speed"')

or

r.subset('cars', select='"speed"')

You need to use double quotes for strings when passing them into the interface. Otherwise, speed will be treated as an "identifier" rather than a string. Additionally,

r('cars')['"speed"']

also works.

In R,there is built-in data,for example,the "cars" data which contains two columns,one is "speed",and the other one is "dist".When in Sage,how can I access the speed and dist data?r.cars("speed") alter an error "Unknown environment "table" ",so,is there any solution?

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.

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?