# dateAccessories: Numeric and character vectors to facilitate working with... In fda: Functional Data Analysis

## Description

Numeric and character vectors to simplify functional data computations and plotting involving dates.

## Format

• dayOfYear a numeric vector = 1:365 with names 'jan01' to 'dec31'.

• dayOfYearShifted a numeric vector = c(182:365, 1:181) with names 'jul01' to 'jun30'.

• day.5 a numeric vector = dayOfYear-0.5 = 0.5, 1.5, ..., 364.5

• daysPerMonth a numeric vector of the days in each month (ignoring leap years) with names = month.abb

• monthEnd a numeric vector of cumsum(daysPerMonth) with names = month.abb

• monthEnd.5 a numeric vector of the middle of the last day of each month with names = month.abb = c(Jan=30.5, Feb=58.5, ..., Dec=364.5)

• monthBegin.5 a numeric vector of the middle of the first day of each month with names - month.abb = c(Jan=0.5, Feb=31.5, ..., Dec=334.5)

• monthMid a numeric vector of the middle of the month = (monthBegin.5 + monthEnd.5)/2

• monthLetters A character vector of c("j", "F", "m", "A", "M", "J", "J", "A", "S", "O", "N", "D"), with 'month.abb' as the names.

• weeks a numeric vector of length 53 marking 52 periods of approximately 7 days each throughout the year = c(0, 365/52, ..., 365)

## Details

Miscellaneous vectors often used in 'fda' scripts.

## Source

Ramsay, James O., and Silverman, Bernard W. (2006), Functional Data Analysis, 2nd ed., Springer, New York, pp. 5, 47-53.

Ramsay, James O., and Silverman, Bernard W. (2002), Applied Functional Data Analysis, Springer, New York

`axisIntervals` `month.abb`

## Examples

 ```1 2 3 4 5 6 7 8``` ```daybasis65 <- create.fourier.basis(c(0, 365), 65) daytempfd <- with(CanadianWeather, smooth.basisPar(day.5, dailyAv[,,"Temperature.C"], daybasis65)\$fd ) plot(daytempfd, axes=FALSE) axisIntervals(1) # axisIntervals by default uses # monthBegin.5, monthEnd.5, monthMid, and month.abb axis(2) ```

### Example output

```Loading required package: splines