# Tagged Questions

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### Smoothing function for displaying stacked lines without the smoothing introducing crossings

I'm displaying time-series data as a "stacked line" or "stacked area" chart. (E.g. with percentage data, data points at 10%, 20% and 30% are displayed at 10%, 30% and 60% on the chart.) Unsmoothed ...
250 views

### What's the difference between dlmSmooth and dlmFilter in R's dlm package?

Could someone please explain what the difference is between the two, and perhaps avoid the worst statistical jargon? I am currently using the dlm package to model ...
350 views

### Kalman smoothing of returns vs. prices with dlmSmooth in R's dlm package?

So I am using the R code behind Fig. 3.14 in Dynamic Linear Models With R (p. 124-5) to make a dynamic version of a simple pair trading model: $$Y = \alpha + \beta X.$$ If I use log returns ...
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### local ordinal regressions

I have found no tool to estimate an "oprobit"-like ordinal model using the local regression (local likelihood) framework. It's not built into R's locfit. What is a good way to proceed? Example: I ...
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### How to explain certain patterns appearing after kernel averaging?

Having a 2D map filled uniformly by random values (Figure:top-left), the next maps are kernel averaged with a kernel of sizes ...
264 views

### Difference between ~lp() or simply ~ in R's locfit [closed]

(Please note the cross-post at http://stackoverflow.com/questions/7626347/difference-between-lp-or-simply-in-rs-locfit) I am not sure I see the difference between different examples for local ...
I have a set of estimates of function values, along with estimates of their standard errors. To somewhat simplify matters: for $x$ running from $1$ up to $70$ in (integer) steps (in fact a parameter ...