ycinter: Yield curve or zero-coupon prices interpolation

Description Usage Arguments Details Value Author(s) See Also Examples

Description

Yield curve or zero-coupon bonds prices curve interpolation using the Nelson-Siegel , Svensson, Smith-Wilson models and an Hermite cubic spline.

Usage

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  ycinter(yM = NULL, p = NULL, matsin, matsout,
    method = c("NS", "SV", "SW", "HCSPL"),
    typeres = c("rates", "prices"))

Arguments

yM

A vector of non-negative numerical quantities, containing the yield to maturities.

p

A vector of non-negative numerical quantities, containing the zero-coupon prices.

matsin

A vector containing the observed maturities.

matsout

the output maturities needed.

method

A character string giving the type of method used fo intepolation. method can be either "NS" for Nelson-Siegel, "SV" for Svensson, "HCSPL" for Hermite cubic spline, or "SW" Smith-Wilson.

typeres

A character string, giving the type of return. Either "prices" or "rates".

Details

This function interpolates between observed points of a yield curve, or zero-coupon prices, using the Nelson-Siegel, Svensson, Smith-Wilson models and an Hermite cubic spline. The result can be either prices or zero rates.

Value

An S4 Object, that can be easily converted into a list with as.list

Author(s)

Thierry Moudiki

See Also

ycsummary

Examples

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## Interpolation of yields to matuities with prices as outputs

 # Yield to maturities
 txZC <- c(0.01422,0.01309,0.01380,0.01549,0.01747,0.01940,0.02104,0.02236,0.02348,
 0.02446,0.02535,0.02614,0.02679,0.02727,0.02760,0.02779,0.02787,0.02786,0.02776
 ,0.02762,0.02745,0.02727,0.02707,0.02686,0.02663,0.02640,0.02618,0.02597,0.02578,0.02563)

 # Zero-coupon prices
 p <- c(0.9859794,0.9744879,0.9602458,0.9416551,0.9196671,0.8957363,0.8716268,0.8482628,
 0.8255457,0.8034710,0.7819525,0.7612204,0.7416912,0.7237042,0.7072136
 ,0.6922140,0.6785227,0.6660095,0.6546902,0.6441639,0.6343366,0.6250234,0.6162910,0.6080358,
 0.6003302,0.5929791,0.5858711,0.5789852,0.5722068,0.5653231)

 # Observed maturities
 u <- 1:30

 # Output maturities
 t <- seq(from = 1, to = 30, by = 0.5)

 # Cubic splines interpolation
 yc <- ycinter(yM = txZC, matsin = u, matsout = t,
 method="HCSPL", typeres="rates")

 ycsummary(yc)

 # Nelson-Siegel interpolation
 yc <- ycinter(yM = txZC, matsin = u, matsout = t,
 method="NS", typeres="prices")

 ycsummary(yc)

 # Svensson interpolation
 yc <- ycinter(p = p, matsin = u, matsout = t,
 method="SV", typeres="prices")

 ycsummary(yc)

 #Smith-Wilson interpolation
 yc <- ycinter(p = p, matsin = u, matsout = t,
 method="SW", typeres="rates")

 ycsummary(yc)

Example output

Loading required package: compiler

Attaching package: 'ycinterextra'

The following objects are masked from 'package:stats':

    deviance, fitted, residuals

The following object is masked from 'package:base':

    as.list

Residuals: 
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
      0       0       0       0       0       0 

Coefficients: 
NA 

Total sum of squares: 
0.0006433808 
with 29 degrees of freedom 

Explained sum of squares: 
0.0006433808 
with 0 degrees of freedom 

Residual sum of squares: 
0 
with 29 degrees of freedom 

Multiple R-squared  * Adjusted R-squared 
1 * 1 

F-statistic: Inf on 29 and 0 degrees of freedom, p-value: NaN 

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Residuals: 
      Min.    1st Qu.     Median       Mean    3rd Qu.       Max. 
-2.262e-03 -8.701e-04 -5.783e-05  0.000e+00  9.585e-04  1.652e-03 

Coefficients: 
0.02983522 0.002110269 -0.06247512 0.9659396 

Total sum of squares: 
0.0006433808 
with 29 degrees of freedom 

Explained sum of squares: 
0.0006044614 
with 3 degrees of freedom 

Residual sum of squares: 
3.891942e-05 
with 26 degrees of freedom 

Multiple R-squared  * Adjusted R-squared 
0.939508 * 0.9325281 

F-statistic: 134.6029 on 26 and 3 degrees of freedom, p-value: 0.9990966 

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Residuals: 
      Min.    1st Qu.     Median       Mean    3rd Qu.       Max. 
-1.493e-03 -7.112e-04 -4.867e-05  2.400e-06  5.118e-04  1.930e-03 

Coefficients: 
0.0167491 0.0007332705 -0.05879449 0.07261618 2.631427 6 

Total sum of squares: 
0.5390953 
with 29 degrees of freedom 

Explained sum of squares: 
0.539073 
with 5 degrees of freedom 

Residual sum of squares: 
2.229154e-05 
with 24 degrees of freedom 

Multiple R-squared  * Adjusted R-squared 
0.9999587 * 0.99995 

F-statistic: 116077.7 on 24 and 5 degrees of freedom, p-value: 1 
Residuals: 
     Min.   1st Qu.    Median      Mean   3rd Qu.      Max. 
9.812e-13 1.539e-12 2.233e-12 2.081e-12 2.636e-12 2.797e-12 

Coefficients: 
0.1 -16.27931 9.201802 2.29136 0.5161016 1.503706 -1.322325 -2.502516 1.114848 -0.873803 1.248141 0.5236537 0.2688466 -1.920069 0.9839525 -1.289441 0.0207775 1.912004 -4.485811 3.790045 -2.817423 3.673588 -3.551265 3.766333 -4.520132 1.482479 1.476094 -3.604975 6.799651 -33.04827 31.9271 

Total sum of squares: 
0.5390404 
with 29 degrees of freedom 

Explained sum of squares: 
0.5390404 
with 29 degrees of freedom 

Residual sum of squares: 
1.402434e-22 
with 0 degrees of freedom 

Multiple R-squared  * Adjusted R-squared 
1 * NaN 

F-statistic: NaN on 0 and 29 degrees of freedom, p-value: NaN 

ycinterextra documentation built on May 1, 2019, 8:02 p.m.