From: e-letter <inpost_at_gmail.com>

Date: Thu, 15 May 2008 13:05:54 +0100

R-help_at_r-project.org mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu 15 May 2008 - 16:31:53 GMT

Date: Thu, 15 May 2008 13:05:54 +0100

Readers,

Using version 251 I tried the following command:

lm(y~a+b,data=datafile)

Resulting in, inter alia:

...

coefficients

(intercept) a

1.2 3.4

Packages installed:

acepack ace() and avas() for selecting regression transformations adlift An adaptive lifting scheme algorithm akima Interpolation of irregularly spaced data alr3 Methods and data to accompany Applied Linear Regression 3rd edition car Companion to Applied Regression coda Output analysis and diagnostics for MCMC drc Analysis of dose-response curves EbayesThresh Empirical Bayes thresholding and related methods emplik Empirical likelihood ratio for censored/truncated data gllm Generalised log-linear model glmc Fitting Generalized Linear Models Subject to Constraints glmmML Generalized linear models with clustering glmpath L1 Regularization Path for Generalized Linear Models and Cox Proportional Hazards Model HydroMe Estimation of Soil Hydraulic Parameters from Experimental Data JGR JGR - Java Gui for R lmtest Testing Linear Regression Models locfit Local Regression, Likelihood and Density Estimation. mvtnorm Multivariate Normal and t Distributions NISTnls Nonlinear least squares examples from NIST nlme Linear and Nonlinear Mixed Effects Models nlstools Tools for nonlinear regression diagnostics nlt A nondecimated lifting transform for signal denoising nlts (non)linear time series analysis nnls The Lawson-Hanson algorithm for non-negative least squares (NNLS) plotrix Various plotting functions quantreg Quantile Regression Rcmdr ** No title available (pre-2.0.0 install?) ** sandwich Robust Covariance Matrix Estimators SparseM Sparse Linear Algebra sspline Smoothing Splines on the Sphere zoo Z's ordered observations Packages in library '/usr/lib/R/library': base The R Base Package boot Bootstrap R (S-Plus) Functions (Canty) class Functions for Classification cluster Cluster Analysis Extended Rousseeuw et al. codetools Code Analysis Tools for R datasets The R Datasets Package foreign Read Data Stored by Minitab, S, SAS, SPSS, Stata, Systat, dBase, ... graphics The R Graphics Package grDevices The R Graphics Devices and Support for Colours and Fonts grid The Grid Graphics Package KernSmooth Functions for kernel smoothing for Wand & Jones (1995) lattice Lattice Graphics MASS Main Package of Venables and Ripley's MASS methods Formal Methods and Classes mgcv GAMs with GCV smoothness estimation and GAMMs by REML/PQL nlme Linear and Nonlinear Mixed Effects Models nnet Feed-forward Neural Networks and Multinomial Log-Linear Models quadprog Functions to solve Quadratic Programming lattice Lattice Graphics MASS Main Package of Venables and Ripley's MASS methods Formal Methods and Classes mgcv GAMs with GCV smoothness estimation and GAMMs by REML/PQL nlme Linear and Nonlinear Mixed Effects Models nnet Feed-forward Neural Networks and Multinomial Log-Linear Models quadprog Functions to solve Quadratic Programming Problems. rcompgen Completion generator for R rpart Recursive Partitioning spatial Functions for Kriging and Point Pattern Analysis splines Regression Spline Functions and Classes stats The R Stats Package stats4 Statistical Functions using S4 Classes survival Survival analysis, including penalised likelihood. tcltk Tcl/Tk Interface tools Tools for Package Development utils The R Utils Package

When using version 171 I entered the same command:

lm(y~a+b,data=datafile)

Resulting in, inter alia:

...

coefficients

(intercept) a b

5.6 7.8 9.01

Packages installed:

base The R base package boot Bootstrap R (S-Plus) Functions (Canty) class Functions for classification cluster Functions for clustering (by Rousseeuw et al.) ctest Classical Tests eda Exploratory Data Analysis foreign Read data stored by Minitab, S, SAS, SPSS, Stata, ... grid The Grid Graphics Package KernSmooth Functions for kernel smoothing for Wand & Jones (1995) lattice Lattice Graphics lqs Resistant Regression and Covariance Estimation MASS Main Library of Venables and Ripley's MASS methods Formal Methods and Classes mgcv Multiple smoothing parameter estimation and GAMs by GCV modreg Modern Regression: Smoothing and Local Methods mva Classical Multivariate Analysis nlme Linear and nonlinear mixed effects models nls Nonlinear regression lqs Resistant Regression and Covariance Estimation MASS Main Library of Venables and Ripley's MASS methods Formal Methods and Classes mgcv Multiple smoothing parameter estimation and GAMs by GCV modreg Modern Regression: Smoothing and Local Methods mva Classical Multivariate Analysis nlme Linear and nonlinear mixed effects models nls Nonlinear regression nnet Feed-forward neural networks and multinomial log-linear models rpart Recursive partitioning spatial functions for kriging and point pattern analysis splines Regression Spline Functions and Classes stepfun Step Functions, including Empirical Distributions survival Survival analysis, including penalised likelihood. tcltk Tcl/Tk Interface tools Tools for package development ts Time series functions

Why do I get different results when entering the same equation command? The correct answer was obtained using the older version of the software, so I want to replicate using the new version, which is installed onto a new pc that I am using. Any advice.

Yours,

rhelp_at_conference.jabber.org

R-help_at_r-project.org mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Thu 15 May 2008 - 16:31:53 GMT

Archive maintained by Robert King, hosted by
the discipline of
statistics at the
University of Newcastle,
Australia.

Archive generated by hypermail 2.2.0, at Fri 16 May 2008 - 16:30:37 GMT.

*
Mailing list information is available at https://stat.ethz.ch/mailman/listinfo/r-help.
Please read the posting
guide before posting to the list.
*