search for: surreyjackson

Displaying 3 results from an estimated 3 matches for "surreyjackson".

2011 Feb 01
2
Scatterplot Question
Hello, I have some data where a number of events (the total amount varies) occur at cumulating times, I would like to create a scatterplot (easily achieved using plot etc) of these events (the events can either be times using poxist or I can convert them into just seconds which is probably easier to work with), however I would like the events/times to re-begin plotting every 10th occurrence and
2011 Jan 14
9
Selecting the first occurrence of a value after an occurrence of a different value
Hello everyone, I am currently working with some data where I need to select the first occurrence of a value after the occurrence of another value. The data has two columns, one with a time and one with occurence of certain events. The column of data I want to select from looks like this (and each of these events have a corresponding time in another column). Stat71 OutMag FirstResp InMag
2011 Feb 21
1
R Square Help (this debate again, i know!)
Hello everyone, I have been using R to do some behavioural economic analysis for my masters thesis, specifically fitting demand curves using nls. E.g. Formula: y ~ c + b * x - a * exp(x) Parameters: Estimate Std. Error t value Pr(>|t|) c -0.445097 0.080823 -5.507 0.005304 ** b -0.777105 0.059528 -13.054 0.000199 *** a 0.011908 0.003886 3.064 0.037495 * --- Signif.