Understanding trends and time series
{"Image DocumentName": "Understanding trends and time series", "Image ImageDescription": "First plot the data. Is the time series consistent? Look for step changes in level or trend. Is there any visual evidence of any pattern or trend? Is there evidence of a regular \u2018seasonal\u2019 pattern? If there is a trend, is it linear? (probably not!)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}