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MathGroup Archive 2007

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Re: Can mathematica do a log-log contour plot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81369] Re: Can mathematica do a log-log contour plot?
  • From: dh <dh at metrohm.ch>
  • Date: Fri, 21 Sep 2007 03:02:24 -0400 (EDT)
  • References: <fct9e2$rvb$1@smc.vnet.net>


Hi Feng,

there is no built in function for that, you must do it yourself. A quick 

and dirty way would be to generate tripples with: {Log of x, Log of y, 

function value at x,y}. Here is an example:

dat=Flatten[Table[{Log[x],Log[y],x^2- y^2},{x,1,10,.1},{y,1,10,.1}],1];

ListContourPlot[dat]

Note that the axes show the Log's of x and y. But you may draw the ticks 

yourself.

hope this helps, Daniel



Feng-Yin Chang wrote:

> Hi All,

>     I have a data array whose indice stand for x,y axes. Is it posiible 

> to make a log-log contour plot? Or is there any other way to do the similiar

>   task by mathematica?

> Thanks a lot.

> 

> Feng-Yin Chang,

> Institute of Physics,NCTU,Taiwan

> 

> 




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