Can someone explain this function?

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Michael
Michael 2014-8-26
I am currently trying to use the boundedline function to plots 95% confidence intervals (seen below). I have sucessfully managed to plot something but I use a random number for 'b'. Can someone explain what b means here? I don't understand what is written in the help manual.
boundedline Plot a line with shaded error/confidence bounds
[hl, hp] = boundedline(x, y, b)
[hl, hp] = boundedline(x, y, b, linespec)
[hl, hp] = boundedline(x1, y1, b1, linespec1, x2, y2, b2, linespec2)
[hl, hp] = boundedline(..., 'alpha')
[hl, hp] = boundedline(..., ax)
[hl, hp] = boundedline(..., 'transparency', trans)
[hl, hp] = boundedline(..., 'orientation', orient)
[hl, hp] = boundedline(..., 'cmap', cmap)
Input variables:
x, y: x and y values, either vectors of the same length, matrices
of the same size, or vector/matrix pair where the row or
column size of the array matches the length of the vector
(same requirements as for plot function).
b: npoint x nside x nline array. Distance from line to
boundary, for each point along the line (dimension 1), for
each side of the line (lower/upper or left/right, depending
on orientation) (dimension 2), and for each plotted line
described by the preceding x-y values (dimension 3). If
size(b,1) == 1, the bounds will be the same for all points
along the line. If size(b,2) == 1, the bounds will be
symmetrical on both sides of the lines. If size(b,3) == 1,
the same bounds will be applied to all lines described by
the preceding x-y arrays (only applicable when either x or
y is an array). Bounds cannot include Inf, -Inf, or NaN,
linespec: line specification that determines line type, marker
symbol, and color of the plotted lines for the preceding
x-y values.
'alpha': if included, the bounded area will be rendered with a
partially-transparent patch the same color as the
corresponding line(s). If not included, the bounded area
will be an opaque patch with a lighter shade of the
corresponding line color.
ax: handle of axis where lines will be plotted. If not
included, the current axis will be used.
transp: Scalar between 0 and 1 indicating with the transparency or
intensity of color of the bounded area patch. Default is
0.2.
orient: 'vert': add bounds in vertical (y) direction (default)
'horiz': add bounds in horizontal (x) direction
cmap: n x 3 colormap array. If included, lines will be colored
(in order of plotting) according to this colormap,
overriding any linespec or default colors.
I have 2 time series, time and data (1x663, 1x663) which I am using for x & y.
thanks, Michael

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