# Computes p-Values for The Comparison of Two Survival Curves at Fixed Points in Time

### Description

This is an internal function and is not usually called by user.

This function computes p-values for the comparison of two survival curves at fixed time points.

### Usage

1 | ```
pvals.2cat(pest, pval.test)
``` |

### Arguments

`pest` |
a matrix of point estimates accompanied with confidence intervals at fixed time points |

`pval.test` |
a type of a test used for the computation of p-values. Possible values are “naive”, “log”, “loglog”. The default value is “loglog”. |

### Value

a vector containing p-values for the comparison of the point estimates at fixed time points

### Author(s)

Eva Janousova, Tomas Pavlik

Institute of Biostatistics and Analyses

Masaryk University, Brno, Czech Republic

janousova@iba.muni.cz

### References

Klein J.P., Logan B., Harhoff M., et al. (2007). Analyzing survival curves at a fixed point in time. *Statistics in Medicine* **26**:4505–4519.

### See Also

`cci`

, `clfs`

, `pvals.cat`

### Examples

1 | ```
# This is an internal function and is not usually called by user.
``` |

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