talegari

# read_dir

# description
#
# read files with specific extensions in the directory as dataframes

# args
#
# directory     : directory should not end with "\"
# extensions    : extensions of the files to be selected as a character

talegari

# Store and retrieve R objects from password protected a file on disk

# ***************
#    Purpose
# ***************
#
# Store R objects into password protected 7z file
# Read them into a R environment

# ***************

talegari

---
title: "Vignette: `csv_process` (csv_disk_utils_R)"
author: "Srikanth KS"
date: "17 February 2016"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

talegari

# Page ranges to print on both sides of a sheet ----
# author       : Srikanth KS (talegari)
# contact      : gmail me at sri dot teach
# version      : 1
# last updated : 31st Dec 2015
# purpose      : If your printer prints on one side(you manually
#                turn and feed the papers) and you need to print
#                multiple pages per sheet

# load libraries ----

talegari

# nextChannel ----
#
# predict next possible channel using previously used channels.
# This is more of a quick hack than a timeseries algorithm.
# It does not take care of seasonal changes or long-term changes,
# If you are looking for more, use Arima or ETS timeseries methods.

# idea      | to predict channel preference based on few
#           | previously used channels.
#

talegari

#----------------------------------------------------------
# customer lifecycle value calulation (CLV,LCV,LTV)
# python version : 2.7.10
#----------------------------------------------------------

# facilitate division
from __future__ import division

# clvBasic ----
# define clv for finite or infinite horizon(from geometric series)

talegari

#######################################################################
# utilities
#######################################################################

# author  : talegari (Srikanth KS)
# license : GNU AGPLv3 (http://choosealicense.com/licenses/agpl-3.0/)
#######################################################################

# intro ----
# This is a set of quick utilities(functions) written in R(3.2.2)