tbTools: Tomas' personal mix of utilities

#' tbTools
#'
#' Tomas' personal mix of utilities
#'
#' Mix of things that I missed in R. Matlab-like colon operator, stem plot (base plotting system), round2 with order, ifft etc.
#'
#' \code{\link{seqM}} Matlab-like behaviour of colon operator or linspace for creating sequences, for-loop friendly.
#' \code{\link{round2}} Rounds a number to the specified order. Round half away from zero (this is the difference from built-in \code{round} function.)
#' \code{\link{ifft}} Inverse Fast Fourier Transform (discrete FT), Matlab-like behavior.
#'
#' \code{\link{Stem}} Matlab-like stem plotting function for discrete series.
#'
#' \code{\link{isInt}} Returns TRUE / FALSE whether it is exactly 1 integer number (in fact, the class can be numeric but the number must be integer), non-missing
#' \code{\link{isNum}} Returns TRUE / FALSE whether it is exactly 1 number (numeric or integer vector of length 1, non-missing)
#' \code{\link{isString}} Returns TRUE / FALSE whether it is exactly 1 character string (character vector of length 1, non-missing)
#' \code{\link{isLogical}} Returns TRUE / FALSE whether it is exactly 1 logical value (TRUE or FALSE), non-missing
#'
#' \code{\link{strTrim}} Trim leading and trailing whitespace in character string. Way faster than str_trim() or trimws().
#'
#' \code{\link{str_contains}} Find string in another string (without regular expressions), returns TRUE / FALSE.
#' \code{\link{str_find}} Find string in another string (without regular expressions), returns indices of all occurences.
#' \code{\link{str_find1}} Find string in another string (without regular expressions), returns indices of the first occurence only.
#'
#'
#' @docType package
#' @name tbTools
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