herrorbar

HERRORBAR Horizontal Error bar plot.
   HERRORBAR(X,Y,L,R) plots the graph of vector X vs. vector Y with
   horizontal error bars specified by the vectors L and R. L and R contain the
   left and right error ranges for each point in X. Each error bar
   is L(i) + R(i) long and is drawn a distance of L(i) to the right and R(i)
   to the right the points in (X,Y). The vectors X,Y,L and R must all be
   the same length. If X,Y,L and R are matrices then each column
   produces a separate line.

   HERRORBAR(X,Y,E) or HERRORBAR(Y,E) plots X with error bars [X-E X+E].
   HERRORBAR(...,'LineSpec') uses the color and linestyle specified by
   the string 'LineSpec'. See PLOT for possibilities.

   H = HERRORBAR(...) returns a vector of line handles.

   Example:
      x = 1:10;
      y = sin(x);
      e = std(y)*ones(size(x));
      herrorbar(x,y,e)
   draws symmetric horizontal error bars of unit standard deviation.

   This code is based on ERRORBAR provided in MATLAB.   

   See also ERRORBAR