## Documentation Center |

Plot error bars along curve

`errorbar(Y,E)errorbar(X,Y,E)errorbar(X,Y,L,U)errorbar(...,LineSpec)h = errorbar(...)`

Error bars show the confidence intervals of data or the deviation along a curve.

`errorbar(Y,E)` plots `Y` and
draws an error bar at each element of `Y`. The error
bar is a distance of `E(i)` above and below the curve
so that each bar is symmetric and `2*E(i)` long.

`errorbar(X,Y,E)` plots `Y` versus `X` with
symmetric error bars `2*E(i)` long. `X`, `Y`, `E` must
be the same size. When they are vectors, each error bar is a distance
of `E(i)` above and below the point defined by `(X(i),Y(i))`.
When they are matrices, each error bar is a distance of `E(i,j)` above
and below the point defined by `(X(i,j),Y(i,j))`.

`errorbar(X,Y,L,U)` plots `X` versus `Y` with
error bars `L(i)+U(i)` long specifying the lower
and upper error bars. `X`, `Y`, `L`,
and `U` must be the same size. When they are vectors,
each error bar is a distance of `L(i)` below and `U(i)` above
the point defined by `(X(i),Y(i))`. When they are
matrices, each error bar is a distance of `L(i,j)` below
and `U(i,j)` above the point defined by `(X(i,j),Y(i,j))`.

`errorbar(...,LineSpec)` uses
the color and line style specified by the string `'LineSpec'`.
The color is applied to the data line and error bars. The linestyle
and marker are applied to the data line only. See `linespec` for examples of styles.

`h = errorbar(...)` returns
handles to the errorbarseries objects created. `errorbar` creates
one object for vector input arguments and one object per column for
matrix input arguments. See `errorbarseries
properties` for more information.

When the arguments are all matrices, `errorbar` draws
one line per matrix column. If `X` and `Y` are
vectors, they specify one curve.

`corrcoef` | `Errorbarseries Properties` | `linespec` | `plot` | `std`

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