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ShadePlotForEmphasis

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ShadePlotForEmphasis

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04 Jun 2003 (Updated )

Plots a shaded bar for emphasis as commonly seen on economic charts.

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Description

ShadePlotForEmpahsis
  Plots a shaded bar for emphasis as commonly seen on economic charts.
 
  INPUTS:
   x where the bar is placed. If you want a bar from x=4:8 then
         use [4 8]. If you want x=[4:8,10:20] then use {4:8,10:20}
  colors Use 'y' to make all bars yellow. Use {'y','g','r'} for
         yellow, green and red bars.
  alphas Use 0.5 if you want all bars to be translucent. Use {0,.5,1}
         for transparent, translucet and opaque bars.
 
  USAGE:
  % DEFINE DATA
  P=[ ...
  98 98 94 91 84 83 82 87 88 89 91 91 90 89 89 90 91 91 87 86 87 84 79 80 ...
  85 86 86 85 93 93 93 93 97 97 95 93 93 94 95 96 96 92 89 90 91 91 91 92 ...
  93 95 99 98 99 97 95 95 94 90 92 93 93 95 94 95 93 92 92 92 91 90 89 89 ...
  90 89 90 89 88 84 84 83 84 85 85 84 82 82 82 79 80 79 80 78 78 81 83 82 ...
  81 79 77 77 78 77 78 79 79 81 81 81 78 78 78 78 77 78 79 79 79 79 81 85 ...
  86 86 86 87 85 84 85 86 88 88 90 88 88 87 86 86 85 87 87 87 86 85 84 83 ...
  82 81 81 82 81 80 82 81 79 80 81 80 80 79 85 85 82 83 84 85 86 87 86 86 ...
  85 85 85 83 79 81 83 83 84 82 80 80 80 80 84 81 80 76 71 70 70 69 69 68 ...
  67 68 68 68 67 68 68 70 70 72 72 71 69 68 68 68 67 68 67 66 67 67 67 66 ...
  65 66 65 62 60 60 59 59 59 59 65 66 63 65 68 68 68 68 69 73 74 71 71 69 ...
  71 72 72 76 76 74 77 80 82 80 78 80 80 80 80 81 80 79 77];
  T=today-length(P)+1:today;
  Y={today-[13 74],today-[142 172]};
  G={today-[30 51]};
 
  % PLOT THE DATA
  plot(T,P);
  datetick;
  line(get(gca,'Xlim'),[80 80])
  line(get(gca,'Xlim'),[68 68])%
  title({'ShadePlotForEmphasis','(P<80 yellow, P<68 green)'});
 
  % DRAW SOME YELLOW BARS
  ShadePlotForEmpahsis(Y,'y',0.5);
 
  % DRAW A GREEN BAR
  ShadePlotForEmpahsis(G,'g',0.5);
 
 
  | ## _#__/
  | ## / #
  | ## / #
  | /#\_/ #
  |/ ## #
  |__##_____#_____
 
  IT'S NOT FANCY BUT IT WORKS

Acknowledgements

This file inspired Shaded Time Series.

MATLAB release MATLAB 6.5 (R13)
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Comments and Ratings (4)
21 Jun 2010 Kuo-Hsien

Hey Michael, How to show the box in the subplots? it doesn't work in my subplots.

09 Oct 2009 David Groppe

Great function! Thanks for writing it. It would be a bit easier to use though if you corrected the spelling of "emphasis." Currently you spell it "empahsis."
much appreciated,
-D

29 Aug 2007 Francisco Bido

Mathworks needs to rapidly implement a more refined version of this popular type of plot. In the mean time, this code is VERY useful. Thanks!!

02 Aug 2007 Vaishali Dadhe  

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