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# Introducing iNZight

 13 Introduction to iNZight iNZight is a free statistical software from Auckland University. It can be saved and run from a USB (no computer installation needed) To use iNZight we: Import data (more detail) Graph the time series data with trend line, Decompose the data into trend, seasonal & residual components Recompose the data into trend + seasonal to establish data values above and below 'average Graph Individual & Estimated Seasonal effects. Make predictions of the next two cycles of data (with confidence intervals) The focus is on DISCUSSING the analysis in context and incorporating all components of the statistical cycle The iNZight tips page has information on ordering, removing, grouping, re-categorising, & exporting data, and creating variables) An iNZight overview (Class notes) thanks to Robyn Headifen at Rangitoto College

 Or another link if you tube is blocked a flash version Ensure you have the latest version of iNZight downloaded Run iNZight Nayland students - go to 'My Computer, S: maths, drop box, 2013, iNZight Input Data Find the 'Sea Ice' data set in the the 'time-series' folder Not sure how to Import Data? Find out here... REMEMBER: If you upload your own data it MUST be in a .csv file, with correct time and variable notation, no commas, no variable definitions etc Tips on iNZight files and variables - link to doc by Rachel Passmore If you want you can do normal box plot of our data. (if you want) eg drag the Antarctica label into the 'Variable 1' box Now for some time series analysis: Click on: Advanced, Time series Check the variable for time. Select a variable to analyse eg Antarctic Plot the data (or animate it) - Animation plots the data slowly so we can discuss the data as it is plotted (structure of time series emerges) If you want to print the graph then copy to clipboard then paste into a word doc