[R] Truncated Lognormal Distribution

Hi! I have following data which is left truncated say at 10. I am trying to estimate the parameters of the Truncated Lognormal distribution to this data as given below. (I have referred to R code appearing in an earlier post - http://finzi.psych.upenn.edu/Rhelp10/2008-October/176136.html)

[R] Truncated Normal Distribution and Truncated Pareto distribution

Dear R helpers, I have a bimodal dataset dealing with loss amounts. I have divided this dataset into two with the bounds for the first dataset i.e. dataset-A being 5,000$ to 100,000$ and the dataset-B deals with the losses exceeding 100,000$ i.e. dataset-B is left truncated. I need to fit

[R] Truncated Distributions - Estimating parameters

Dear R users, I am working on the Value at Risk (VaR) for the Operational risk. For a given loss data, we try to fit some statistical distributions using Kolmogorov-Smirnov (KS) test and A-D test and then for fitted distribution using the estimated parameters, the losses are simulated and the

[R] Exponential Fitting to Credit default data - A theoretical query

is correct or not.   Thanking you in advance   Regards   Julia Cains, Brisbane     ** Only a man of Worth sees Worth in other men ** [[alternative HTML version deleted

[R] Learning R

Dear R helpers, Almost 15 days back I have become member of this very active and wonderful group. So far I have been only raising  queries and in turn got them solved too and I really thank for the spirit this group member show when it comes to the guidance. I wish to learn R language and I

[R] Overlapping x - axis lables

Dear R helpers Suppose I am plotting a simple scatter plot where no of paired observations (x,y) are say 100. month     length 1               10 2           12 3   17 4       21 5   13 ..

Re: [R] Overlapping x - axis lables

Dear Sir, Thanks again for your help. Sir, actually I am working on a data containing 84 months and the corresponding savings (core) balances and non-core balances and I am plotting a stacked bar. The original code I am using is as follows x = read.csv('core-noncore.csv') x2 -

[R] Plotting Stacked Bar

Dear R helpers, I am trying to plot a stacked graph. I have following data Month  Core(%)   Non_core(%) 1 45    55 2 48    52 3 36    64 4 60    40 5 35    65 Then for

[R] Old Version of R - packages

Hi! Unfortunately the version loaded on the office server is 2.6.0 (for some undisclosed so called policy decision by my adamant IT dept. who are not willing to upgrade), I need to use YieldCurve package compatible with this version. On my standalone machine I have R 2.9 loaded and hence I

Re: [R] Old Version of R - packages

, November 24, 2009, 1:17 PM Julia Cains wrote: Hi! Unfortunately the version loaded on the office server is 2.6.0 (for some undisclosed so called policy decision by my adamant IT dept. who are not willing to upgrade), I need to use YieldCurve package compatible with this version. On my

[R] One basic question - combining two conditions

Dear R helpers Suppose I want to use two conditions if (x = 42) and (x48) z = 45 else if (x= 48) and (x60) z = 14 how do use this and operator to combine two conditions. I am sorry as I know for many of you, this is very basic question but I am new to R and trying to learn it as early as

[R] How to select the part of column name heads?

  Dear R helpers,   Suppose I am reading a csv file as   yd    =   read.csv(mydata.csv)   The actual data in the mydata.csv file is say for example like this -     Date day_1 days_15 day_30days_60days_90  days_180 Nov 11    5 14   1  

[R] Polynomial fitting

Dear R helpers     Suppose I have a following data   y  - c(9.21, 9.51, 9.73, 9.88, 10.12. 10.21)   t  - c(0, 0.25, 1, 3, 6, 12)   I want to find out the polynomial which fits y in terms of t i.e. y = f(t) some function of t.   e.g.   y = bo + b1*t + (b2 * t^2) + (b3 * t^3) + .. and so on.