Search

Recent Posts
Stats for newbies and up
Eviews for newbies
Stats with R for newbies
SPSS (PASW) for newbies

Math For Economics & Finance
Econometrics
Archives
 June 2014 (2)
 May 2014 (1)
 March 2014 (2)
 February 2014 (2)
 December 2013 (4)
 March 2013 (4)
 February 2013 (4)
 January 2013 (6)
 December 2012 (16)
 November 2012 (36)
 October 2012 (44)
 September 2012 (57)
 August 2012 (24)
 July 2012 (51)
Category Archives: R: Descriptive stats
R: using basic stats to find good (mutual) investment funds
So what investment fund should we buy in our ISA? That’s a question discussed in the media between Christmas and New Year. I want to show you that you can select consistently good performing funds by just knowing a bit … Continue reading
Posted in R: Descriptive stats
Leave a comment
R: bar plots/ bar charts
Bar plots are for when we have categorical variables – known also as factors in ANOVA. Instances we may use barplots: descriptive stats when we have categorical variables; regression when we have categorical variables; crosstabs. #compare with hist() command Windows() … Continue reading
Posted in R: Descriptive stats
Leave a comment
R: Shape of the normal qq plot for skewed distributions
One of the first plots we learn about is the histogram which is easy to interpret. No so the qq plot, whose purpose is to shed light as to whether the variable (data) comes from a specified distribution. Here I … Continue reading
Posted in R: Descriptive stats
Leave a comment
R: How to obtain summary statistics
Once your data is ready for analysis, you need to obtain the descriptive statistics. Video with examples to show how to obtain in R: #summary stats (mean,median, min, max, sd, quantile, range, skewness, kurtosis, #not for mode) for one variable … Continue reading
Posted in R: Descriptive stats
Leave a comment
R: Crosstabs/contingency table
Testing for an association/relationship/independence between two (qualitative) factors.
Posted in R: Descriptive stats
Leave a comment