Stats filter: Is logistic regression what I need? If so, can I do this in regular SPSS (v17) or do I need the add-on? [more inside]
posted by bingoes on Aug 3, 2009 - 9 answers

Suggestions for dealing with an increase in potty accidents in an almost-four-year-old? [more inside]
posted by leahwrenn on Jun 16, 2009 - 9 answers

Can I get Google Spreadsheets to display a scatterplot of data with the regression line overlaid on the plot? How? [more inside]
posted by RossWhite on Apr 20, 2009 - 1 answer

Confused by statistics and regression analysis. [more inside]
posted by katers890 on Apr 6, 2009 - 23 answers

How do I check for linearity? [more inside]
posted by ttyn on Feb 28, 2009 - 9 answers

How do I convert a large raster image into a table for analysis and manipulation? [more inside]
posted by agentofselection on Dec 14, 2008 - 9 answers

Ok so I have this huge table of survey data - much of it numerical, much of it binary, some of it from selections from menus of text items (e.g. blue, green, orange etc). Where do I start to find the most noticeable relationships between variables? [more inside]
posted by vizsla on May 7, 2008 - 13 answers

Looking for free or low cost (under $50) multiple linear regression software which ideally works with Microsoft Excel (but not critical). Any recommendations?
posted by vizsla on Apr 17, 2008 - 17 answers

Statistics-filter: I need to establish to what extent student performance on a particular standardized test is predicted by each of the following: GPA, standardized test scores and a couple of other miscellaneous numerical factors. How do I go about this? [more inside]
posted by perissodactyl on Mar 6, 2008 - 11 answers

I've spent the past day or so trying to figure out how to calculate a hidden value in my data. It varies linearly with time, or closely enough that we can make that assumption within any given dataset. Where this goes beyond a simple linear regression is that each datapoint is known to be above or below the hidden value. The data is collected in a C# program and processed in Excel; an Excel function would be the ideal solution. [more inside]
posted by bjrubble on Apr 3, 2006 - 14 answers

I'm trying to run an ordinal regression in SPSS. Are my independent variables factors or covariates? [more inside]
posted by duck on Jun 21, 2005 - 6 answers

Statisticsfilter: I need help figuring out how to pound a regression model into submission. [more inside]
posted by Quartermass on Apr 1, 2005 - 9 answers