Writing a time series analysis program

It requires an executor who, for a modest fee, will do a simple job of developing a program that will implement time series analysis.
Briefly about the work - take the data of their Exelev tablet, run one of three methods, output "calculations" and build graphs. It's all in humble YI.
Methods: Trend line, Seasonal forecasting, Moving average. (All related to time series, statistics)
Under Windu, the language doesn't matter whether the web or not, it doesn't matter either.
For more information, please contact me.