car2freq - transforms a car into a frequency
date2fq - finds the frequency associated to a date
date2num - transforms a date into a number
date2num_fq - transforms a date into a number and its frequency
date2num_m - transforms a matrix of dates into numbers
datets - returns the time span of a ts
delts - differentiates a ts
diff_date - returns the difference between 2 dates
extrap - extrapolate a ts by another ts
freq2car - transforms a frequency into a string
freqts - returns the frequency of a ts
growthr - growth rate of a ts
lagts - lag a ts
m2q - transforms monthly data into quarterly ones
num2date - transforms a number into a date
overlay - overlay several ts
prtts - print ts
q2a - transforms quarterly data into annual ones
res2ts - result vector object to timeseries
reshape - creation of a ts from a vector
series - returns the values of a ts
st_dev - standard deviation of a vector or a ts
subper - restrict a ts to a subperiod
ts2vec - transforms a ts into a vector
values - value of a ts at some date
var_t - variances of n ts at a given date
vec2ts - vector to timeseries