# Plot a ListLinePlot with time stamps?

Posted 3 months ago
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 I have the following command: ListLinePlot[Transpose[sampleData[[{2, 18}]]], Frame -> True, PlotRange -> {All, {0, 5000}}, FrameLabel -> {"Latitude (\[Degree])", "\!$$\*SubscriptBox[\(T$$, $$e$$]\) (K)"}] If I want to get the timestamp, which corresponds to sampleData[{1}] for Latitude >40 and Latitude <80, how should the command be rewritten?I tried, ListLinePlot[Transpose[sampleData[[{2, 18}]] /; sampleData[[2]] >= 40 && sampleData[[2]] <= 80], Frame -> True, PlotRange -> {All, {0, 5000}}, FrameLabel -> {"Latitude (\[Degree])", "\!$$\*SubscriptBox[\(T$$, $$e$$]\) (K)"}] but it doesn't work.Thanks
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Posted 3 months ago
 What you mean by "get the timestamp" is not at all clear. Please describe the structure of sampleData with some concrete examples. If all you want to do is filter the data that is plotted then you can use Select. data = Range[100]; Select[data, # >= 40 && # <= 80 &] (* {40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80} *) Or if you have to use a pattern then data /. x_ /; (x < 40 || x > 80) -> Nothing 
Posted 3 months ago
 Hi Rohit, Transpose[sampleData[[{1, 2, 15}]]] {{2014, 11, 1, 1, 1, 0.696}, 21.1056, 248160.}, {{2014, 11, 1, 1, 1, 1.197}, 21.0738, 249216.},.............................. Index 1 refers to the timestamp which I must retrieve, index 2 is the x-axis variable which I must retrieve from # >= 40 && # <= 80 & I will also need data from Index 15 and 18 How can I retrieve a list of these data points?
 If your data looks like this data = {{{2014, 11, 1, 1, 1, 0.696}, 21.1056, 248160.}, {{2014, 11, 1, 1, 1, 1.197}, 41.0738, 249216.}, {{2014, 11, 1, 1, 1, 2.197}, 60.0738, 249216.}} Then this will give the elements where the second index (x value) is in the desired range Select[data, #[[2]] >= 40 && #[[2]] <= 80 &] (* {{{2014, 11, 1, 1, 1, 1.197}, 41.0738, 249216.}, {{2014, 11, 1, 1, 1, 2.197}, 60.0738, 249216.}} *) To get just the timestamp and x value Most /@ Select[data, #[[2]] >= 40 && #[[2]] <= 80 &] (* {{{2014, 11, 1, 1, 1, 1.197}, 41.0738}, {{2014, 11, 1, 1, 1, 2.197}, 60.0738}} *)