Re: [R] [FORGED] Equality of two probabilities (proportions?)

2017-02-10 Thread Rolf Turner
On 11/02/17 00:27, mamuash bukana wrote: Suppose we calculate probability of an event using Binomial distribution and got p1. Then probability of that same event is calculated using the Normal approximation to Binomial and got p2. Can't we evaluate the goodness of our approximation by comparing

Re: [R] R under OS X El Capitan 10.11.2

2017-02-10 Thread Simon Urbanek
Please use R-SIG-Mac and include important details such as your sessionInfo() as well as how you installed the packages. Also make sure you have re-installed Rcpp and that you don't have an older version on your library path. Cheers, Simon > On Jan 1, 2016, at 9:54 PM, Paul Schlesinger wrote

Re: [R] [FORGED] Equality of two probabilities (proportions?)

2017-02-10 Thread Bert Gunter
IMHO, You were given an appropriate answer. Please follow its advice. -- Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Fri, Feb 10, 2017 at 3:27 AM, ma

Re: [R] [FORGED] Equality of two probabilities (proportions?)

2017-02-10 Thread Michael Dewey
Dear Mamuash I expect you will shortly get an email telling you that this is off-topic as it is about statistics not R but in the mean time you might search for "scoring rules" or even "Brier score". I am afraid I am not an expert in this area and they possibly do not answer your question but

Re: [R] [FORGED] Equality of two probabilities (proportions?)

2017-02-10 Thread mamuash bukana
Suppose we calculate probability of an event using Binomial distribution and got p1. Then probability of that same event is calculated using the Normal approximation to Binomial and got p2. Can't we evaluate the goodness of our approximation by comparing the difference between p1&p2? If yes, how to

Re: [R] [FORGED] Equality of two probabilities (proportions?)

2017-02-10 Thread Rolf Turner
On 10/02/17 21:12, mamuash bukana wrote: Dear R users, I wanted to test if there is significant difference between probabilities of the same event calculated in different ways. I am aware about the prop.test() which does the comparison between two proportions given the number of successes and s

[R] Equality of two probabilities (proportions?)

2017-02-10 Thread mamuash bukana
Dear R users, I wanted to test if there is significant difference between probabilities of the same event calculated in different ways. I am aware about the prop.test() which does the comparison between two proportions given the number of successes and sample sizes. But in my case the only values I