Displaying 5 results from an estimated 5 matches for "sarah_sanchez09".
2010 Feb 16
1
Total and heading of portfoilo table
Dear R helpers,
I have two input files as 'quantity.csv' and 'equity_price.csv' as (for example) given below.
'quantity.csv'
GOOG YHOO
1000 100
'equity_price.csv'
sr_no GOOG_price YHOO_price
1 15.22 536.40
2 15.07 532.97
3 15.19 534.05
4
2010 Jul 01
3
Double Integration
Dear R helpers
I am working on the Bi-variate Normal distribution probabilities. I need to double integrate the following function (actually simplified form of bivariate normal distribution)
f(x, y) = exp [ - 0.549451 * (x^2 + y^2 - 0.6 * x * y) ]
where 2.696 < x < 3.54 and -1.51 < y < 1.98
I need to solve something like
INTEGRATE (2.696 to 3.54) dx INTEGRATE [(-1.51 to 1.98)]
2010 Sep 03
4
Generation of uniform random numbers
Dear R helpers
I have following dataset
rate_number = matrix(c(5, 15, 60, 15, 5, 0, 20, 60, 20,0, 10, 20, 40, 20, 10), nrow = 5, ncol = 3)
range_mat = matrix(c(6.25, 6.75, 7.25, 8.75, 9.25, 9.75, 8.5, 9, 9.5, 10.5, 11, 11.5, 4.25, 4.75, 5.25, 5.75, 6.25, 6.75), nrow = 6, ncol = 3)
> rate_number
[,1] [,2] [,3]
[1,] 5 0 10
[2,] 15 20 20
[3,] 60 60 40
2010 Aug 20
1
Shifting of Principal amount while calculating Present Value
Dear R Helpers
I have following data -
cash_flow = c(7, 7, 107) # 107 = Principle 100 + interest of 7%
t = c(1,2,3)
and zero rate table as
rating year1 year2 year3
AAA 3.60 4.17 4.73
AA 3.65 4.22
4.78
A 3.72 4.32 4.93
BBB 4.10
2010 Jun 23
1
Generation of binomial numbers using a loop
Dea'R' helpers
I have following data -
prob = c(0.1, 0.2, 0.3, 0.4, 0.5)
frequency = c(100, 75, 45, 30, 25)
no_trials = c(10, 8, 6, 4, 2)
freq1 = rbinom(frequency[1], no_trials[1], prob[1])
freq2 = rbinom(frequency[2], no_trials[2], prob[2])
freq3 = rbinom(frequency[3], no_trials[3], prob[3])
freq4 = rbinom(frequency[4], no_trials[4], prob[4])
freq5 = rbinom(frequency[5],