search for: nmhicks

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2013 Feb 14
4
lm regression query
Hello: I have a 4-column dataset: Crime, Education, Urbanization, Age. I want to construct a multiple linear regression to find the effect of Education, Urbanization, and Age on Crime" lm(Crime ~ Education + Urbanization + Age) If I use + in above statement, does it mean it will build a model to find the relationship between Crime and Education when Urbanization and Age are held constant?
2013 Feb 22
3
Help xyplot
Hi Mackay and anybody (a) Is it possible to select randomly (let say five grids) and plot? (b) Is it possible to plot five nearest grid in one figure? The original question and improved codes: #I am ploting gridded time series data. I would like the actual lat #and lon value appear on the graph-if possible inside the graph as #numbers. If there is also more elegant ways to plot the graphs I
2013 Feb 25
1
legend issues.
...16, col=c("white", "blue", "red"), legend=c("6.0 to 6.9", "7.0 to 7.9", "8.0 to 8.9"), ncol=3) ~Nicole Ford Ph.D. student Graduate Assistant/ Instructor University of South Florida Government and International Affairs office: SOC 012M e: nmhicks@mail.usf.edu http://gia.usf.edu/student/nford/ [[alternative HTML version deleted]]