Tag: splines

42 Are splines overfitting the data? 2013-02-01T09:36:38.343

21 Comparing smoothing splines vs loess for smoothing? 2011-12-20T13:22:16.890

20 Advanced regression modeling examples 2014-11-02T23:16:51.557

18 Interpreting spline results 2014-05-15T13:44:59.367

18 Can splines be used for prediction? 2016-01-06T12:41:05.837

17 What are the advantages / disadvantages of using splines, smoothed splines, and gaussian process emulators? 2010-11-30T02:36:57.163

17 Intuition behind tensor product interactions in GAMs (MGCV package in R) 2012-12-08T21:30:24.430

16 Setting knots in natural cubic splines in R 2011-02-17T03:01:41.173

16 Can lmer() use splines as random effects? 2012-09-15T09:35:49.090

15 Visualizing a spline basis 2012-05-29T00:01:50.440

13 The definition natural cubic splines for regression 2016-09-03T19:21:20.873

12 Fitting multivariate, natural cubic spline 2011-07-26T16:22:18.150

12 Finding local extrema of a density function using splines 2012-06-19T15:05:03.010

11 Is there a problem with multicollinearity and for splines regression? 2013-09-24T23:27:26.077

11 GAM vs LOESS vs splines 2016-01-03T16:41:44.043

10 How to translate the output from an lm() fit with a cubic spline into a regression equation 2013-08-16T19:46:28.523

9 Knot selection for cubic regression splines 2010-12-30T05:53:33.917

9 What do interactions of spline and non-spline terms mean? 2012-05-22T16:59:20.097

9 B-Splines VS high order polynomials in regression 2017-11-21T10:16:49.023

8 Kalman filter vs. smoothing splines 2011-09-01T16:05:10.390

8 Spline df selection in a general additive Poisson model problem 2012-05-02T22:04:59.233

8 Modeling a spline over time -- design matrix and survey of approaches 2012-08-07T16:53:22.720

8 Penalized spline confidence intervals based on cluster-sandwich VCV 2012-11-30T19:39:58.063

8 How to predict new data with spline/smooth regression 2013-06-23T17:40:10.420

8 Selection of k knots in regression smoothing spline equivalent to k categorical variables? 2014-04-14T17:27:37.447

8 Splines vs Gaussian Process Regression 2015-04-03T03:56:20.280

8 Back-testing or cross-validating when the model-building process was interactive 2015-04-29T04:59:00.207

8 Periodic splines to fit periodic data 2016-07-26T08:37:08.563

8 How to use restricted cubic splines with the R mice imputation package 2017-08-03T11:48:41.873

8 Splines in GLM and GAM 2017-08-19T18:17:53.107

7 Minimum number of observations per variable for linear regression or MARS model 2011-11-27T19:53:59.240

7 Causal identification and penalized splines 2013-05-15T08:18:04.867

7 Getting the prediction standard error from a natural spline fit 2013-10-04T23:25:59.413

7 Skewed Distributions for Logistic Regression 2014-12-19T13:29:06.507

7 How do I find a p-value of smooth spline / loess regression? 2015-01-31T17:33:08.853

7 Data visualization for missing data 2015-06-30T11:55:49.840

7 How should I check the assumption of linearity to the logit for the continuous independent variables in logistic regression analysis? 2015-08-30T05:01:11.660

7 Why is $B^TB+\lambda\Omega$ positive definite? 2016-11-06T20:12:10.593

7 Mixed effects model with splines 2016-12-02T21:52:06.900

6 Definition of "degree of interaction" in the MARS model 2011-08-11T17:14:48.690

6 How are piecewise cubic spline bases constructed? 2012-02-20T08:27:28.597

6 State-of-the-art in smoothing splines 2012-05-18T15:22:49.633

6 Piecewise linear regression with knots as parameters 2013-07-22T16:02:14.017

6 Detecting outliers using 95% PI around a natural spline fit 2013-10-01T18:29:40.000

6 Determine where hazards starts to increase for a continuous variable 2014-10-30T09:48:32.263

6 Equation of a fitted smooth spline and its analytical derivative 2015-04-22T13:20:59.617

6 Avoiding a spline dip 2015-06-26T04:19:18.353

6 Comparing a linear model with a spline model 2015-07-25T18:14:59.153

6 Splines - basis functions - clarification 2015-07-27T15:14:50.817

6 The Regularization Path for Smoothing Splines 2016-10-20T19:58:27.383

5 Constructing smoothing splines with cross-validation 2010-08-12T15:16:55.543

5 Calculation of natural cubic splines in R 2011-04-08T01:36:55.427

5 Is there a package for R that allows smoothing splines in GEE? 2011-08-23T14:53:40.900

5 Can you use a spline function of the spatial coordinates to control for spatial autocorrelation? 2012-08-07T01:35:51.477

5 Implementation of M-spline in R 2013-07-12T17:45:34.613

5 Explanation of cubic spline interpolation 2014-01-11T13:00:50.230

5 Spline – basis functions 2014-03-02T21:07:32.823

5 How exactly is the sum (or mean) centering constraint for splines (also w.r.t. gam from mgcv) done? 2014-08-03T16:10:43.903

5 Interpretation of the hazard ratio in a spline model on continuous exposures 2015-05-14T12:12:38.837

5 Which statistical model to use when trying to find the beginning of a time-dependent increase 2015-12-07T08:57:25.510

5 Random effects in package mgcv 2016-04-27T14:24:51.050

5 Knots in Smoothing Splines 2017-08-30T17:39:24.180

5 GAM : smoothing splines 2018-03-06T14:03:55.207

4 Interactions between non-linear predictors 2011-03-17T23:33:22.827

4 The effect of skewed continuous predictors in a binary logistic regression model 2011-12-20T23:43:32.670

4 Curve smoothing in the presence of non-gaussian uncertainty 2012-05-20T08:38:37.067

4 Fitting a constrained natural spline 2013-09-03T23:26:14.880

4 Prediction from gam model at X = 0 not equal to intercept 2014-05-29T01:24:02.857

4 How to interpolate (spline, LOESS, etc.) with a mix of critical and non-critical points 2014-07-06T20:20:52.030

4 Significant p-value but odds ratio confidence interval crosses 1 in logistic regression using restricted cubic splines 2015-07-08T16:16:43.733

4 Concept of fitting cubic splines 2015-07-21T22:28:27.420

4 Why are the basis functions for natural cubic splines expressed as they are? (ESL) 2015-09-12T18:28:57.343

4 Interpretation of smoothing spline 2015-09-18T08:44:54.230

4 How to find marginal effect of restricted cubic spline 2016-02-16T18:05:18.777

4 Practical description of LOESS and smoothing splines? 2016-10-14T17:06:21.790

4 Linear Regression or Spline Fit? 2017-01-14T14:58:05.597

4 In using a basis model to represent a cubic spline, what is the meaning of the truncated power basis function and its math in lay terms? 2017-05-11T11:14:14.117

4 Building a model that can estimate the equation of a parabola, trained on sample 'trajectories' 2017-11-03T19:08:12.353

4 Is spline basis orthogonal? 2018-01-25T15:03:44.210

3 Getting spline coefficients in R 2011-11-08T13:26:43.340

3 Spline fitting in R - how to force passing two data points? 2012-05-29T15:57:44.820

3 Outlier detection/imputation - discussion 2013-08-18T18:56:12.447

3 Which one to use Splines / Interaction or both? 2013-11-27T09:29:37.343

3 Setting up a naive tensor product B-spline example 2014-04-09T15:13:23.673

3 Smoothing parameter for spline curve with duplicate points 2014-09-21T17:22:29.690

3 Predicting an output based on whether a variable is above or below a threshold 2015-02-06T18:03:24.613

3 Interpretation of bs(x) and gam Results 2015-05-03T23:07:43.317

3 Truncated power basis function and continuity in b-splines 2015-08-22T17:59:15.777

3 Can I use Covariate Balancing Propensity Score method to adjust for confounding in a Cox Regression model with splines? 2016-06-14T17:22:50.987

3 What are periodic version of splines? 2016-07-26T16:30:11.757

3 Resampling/Interpolating monthly rates to daily rate estimates in R 2016-09-26T18:37:23.623

3 What are the differences between generalized additive model, basis expansion and boosting? 2016-10-13T18:11:49.037

3 Surface Fit Using Tensor Product of B-Splines 2017-01-04T15:42:42.207

3 What is the fitted model for a smoothing spline? 2017-01-26T01:18:01.677

3 What is the second derivative of a B-spline? 2017-01-29T16:52:17.713

3 Interpretation of a spline 2017-04-29T19:06:59.480

3 Meta-regression using restricted cubic splines (with rma() from the metafor package and rcs()) 2017-05-15T13:06:46.423

3 What are the representations of splines? Is there a concept of a 0 degree spline? 2017-06-08T22:09:56.530

3 Difference between smoothing splines and splines in R 2017-07-20T08:26:16.150