Set the confidence level used for computing confidence intervals and bands:

A set of 90% intervals corresponding to the time points in the model:

The confidence level can also be set before the model has been fitted:

By default the confidence level is set to :

Compute confidence intervals for the survival probability at a point:

Confidence intervals about the survival function at for a range of confidence levels:

Set the confidence range for simultaneous intervals and bands:

The bands are only defined over the confidence range:

By default the range is set to All:

Set the range to Full:

Apply transformations to confidence intervals and bands:

A collection of named transforms:

"LogLog" bands and intervals are used by default:

Transformations can ensure that intervals and bands are appropriately bounded:

Notice that the upper 95% limit is larger than for some event times:

Using a "LogLog" transform corrects this issue:

Define custom transformations:

Explicit definitions for the various named transforms:

Verify that the definitions are equivalent to the named transforms: