Gnuplot and the dollar sign
Hi! I'm having trouble while trying to make the following work: \usemodule[gnuplot] \startGNUPLOTscript[distr_simple_1] plot "2_simple_1.out" using (0.01*floor($1/0.01)):(0.870456/100000/0.01) smooth frequency with boxes, (cos(2*x)*sin(0.5*x) + 1)*exp(-0.4*x) \stopGNUPLOTscript \useGNUPLOTgraphic[distr_simple_1] The problem seems to be that the single dollar sign gets interpreted as the start of a math environment. I tried to look through the source code to see how I could tell context to bypass checking for certain characters, but I couldn't figure it out. Thanks for any hints! Janne Junnila
On Sat, Jan 28, 2012 at 09:16, Janne Junnila wrote:
Hi!
I'm having trouble while trying to make the following work:
\usemodule[gnuplot]
\startGNUPLOTscript[distr_simple_1]
plot "2_simple_1.out" using (0.01*floor($1/0.01)):(0.870456/100000/0.01) smooth frequency with boxes, (cos(2*x)*sin(0.5*x) + 1)*exp(-0.4*x) \stopGNUPLOTscript
\useGNUPLOTgraphic[distr_simple_1]
The problem seems to be that the single dollar sign gets interpreted as the start of a math environment.
On one hand that is the intended default behaviour. It is very handy to be able to use plot (cos(2*x)*sin(0.5*x) + 1)*exp(-0.4*x) title '$\left(\cos(2x) \cdot \sin(0.5x)\right+1) e^{-0.4x}$' to get nice result. On the other hand I'm not exactly sure how to reliably print whatever gets passed to ConTeXt. The only option that comes to my mind is some modification of \sometxt{\starttyping floor($1/0.01) \stoptyping} where \starttyping would generate a single line. But one would need a special option for that. (The command \type{...} would not be reliable enough: in MKII it stops working at the second underscore and it is a problem if one has curly braces in text.)
I tried to look through the source code to see how I could tell context to bypass checking for certain characters, but I couldn't figure it out.
Currently the only option is to provide an explicit title. But if there's a request to support literal output and if somebody can help me figure out how exactly I should output the given text into metapost, so that it will be reliably printed out literally. Mojca
Thank you for your reply!
I was actually able to find a workaround for my problem at least in
this case. Digging through the gnuplot documentation revealed that
instead of using $n to refer to the column n in a data file one can
also use column(n). The ConTeXt parser accepts this of course.
Janne Junnila
On Sat, Jan 28, 2012 at 12:23 PM, Mojca Miklavec
On Sat, Jan 28, 2012 at 09:16, Janne Junnila wrote:
Hi!
I'm having trouble while trying to make the following work:
\usemodule[gnuplot]
\startGNUPLOTscript[distr_simple_1]
plot "2_simple_1.out" using (0.01*floor($1/0.01)):(0.870456/100000/0.01) smooth frequency with boxes, (cos(2*x)*sin(0.5*x) + 1)*exp(-0.4*x) \stopGNUPLOTscript
\useGNUPLOTgraphic[distr_simple_1]
The problem seems to be that the single dollar sign gets interpreted as the start of a math environment.
On one hand that is the intended default behaviour. It is very handy to be able to use
plot (cos(2*x)*sin(0.5*x) + 1)*exp(-0.4*x) title '$\left(\cos(2x) \cdot \sin(0.5x)\right+1) e^{-0.4x}$'
to get nice result. On the other hand I'm not exactly sure how to reliably print whatever gets passed to ConTeXt. The only option that comes to my mind is some modification of \sometxt{\starttyping floor($1/0.01) \stoptyping} where \starttyping would generate a single line. But one would need a special option for that. (The command \type{...} would not be reliable enough: in MKII it stops working at the second underscore and it is a problem if one has curly braces in text.)
I tried to look through the source code to see how I could tell context to bypass checking for certain characters, but I couldn't figure it out.
Currently the only option is to provide an explicit title. But if there's a request to support literal output and if somebody can help me figure out how exactly I should output the given text into metapost, so that it will be reliably printed out literally.
Mojca ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
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participants (2)
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Janne Junnila -
Mojca Miklavec