age_to_time: Convert an age-based table to a cycle-based table
In MattWiener/heemodFits: Using Survival Fits with Heemod

Description Usage Arguments Details Value Examples

Convert an age-based table to a cycle-based table

age_to_time(x, age_init, cycle_length)

## S3 method for class 'surv_table'
age_to_time(x, age_init, cycle_length)

## S3 method for class 'surv_object'
age_to_time(x, age_init, cycle_length)

## S3 method for class 'surv_pooled'
age_to_time(x, age_init, cycle_length)

`x`	a survival object
`age_init`	initial age the table will be applied to
`cycle_length`	length of cycles

This is used to convert a mortality table for use as a survival curve in terms of cycles of the model. Typically, age_surv will have been constructed using define_surv_table() or define_wtd_surv_table().

a table with time renormalized to be in terms of cycles, with time 0 corresponding to age age_init

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 df <- data.frame(time = c(50, 51, 55, 60), survival = c(1, 0.9, 0.7, 0.5))
 st <- define_surv_table(df, by_age = TRUE)
 age_to_time(st, age_init = 50, cycle_length = 1)