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Re: How to extract from list

  • To: mathgroup at smc.vnet.net
  • Subject: [mg130937] Re: How to extract from list
  • From: Tomas Garza <tgarza10 at msn.com>
  • Date: Mon, 27 May 2013 04:23:44 -0400 (EDT)
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I modified slightly your data, making the four freq values more or less equally spaced:
orig={{1.8,13.8,34,134},{10.9,6.4,44,94},{20.0,2.7,62,52},{54.,6.8,250,189}}
b=Transpose[orig];c=Table[{b[[1]],b[[j]]},{j,2,4}];
ListPlot[Transpose/@Table[c[[j]],{j,1,3}],PlotStyle->PointSize[0.025]]
ListLinePlot[Transpose/@Table[c[[j]],{j,1,3}],PlotStyle->PointSize[0.025]]
Show[%, %%]

-Tomas

> From: jlfisher at imt.net
> Subject: How to extract from list
> To: mathgroup at smc.vnet.net
> Date: Sun, 26 May 2013 05:07:41 -0400
>
> I have a list/array as follows::
>
> {{1.8, 13.8, 34, 134}, {1.9, 6.4, 44, 94}, {2.0, 2.7,62, 52},..........,{54., 6.8, 250, 189}}
>
> The first entry is a frequency ex 1.8 MHz
> The other values are SWR[13.8], Resistance[34], Reactance[134].
>
> I want to plot the last three values on three line graphs in different colors using the first value [freq] at the bottom [as the dependent].
>
> As you can see the freq goes from 1.8 to 54 Mhz.
>
> How can I plot this list/array [three lines] please ?
>
> Thanks
>
 		 	   		  


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