On 1/12/15 11:46 AM, sebb wrote:
> External access to sumXX is via getXSumSquares()
> This returns NaN if n < 2.
>
> However there are some methods in the class that reference sumXX directly.
> They don't all check for n < 2
>
> For example:
>
> getSumSquaredErrors
>
> getInterceptStdErr
>
> getSl
External access to sumXX is via getXSumSquares()
This returns NaN if n < 2.
However there are some methods in the class that reference sumXX directly.
They don't all check for n < 2
For example:
getSumSquaredErrors
getInterceptStdErr
getSlopeStdErr
getRegressionSumSquares
regress(int[] vari
Alright Phil! Thunder and Lightening! I like it. ;-)
On Mon, Aug 22, 2011 at 10:55 PM, Phil Steitz wrote:
> On 8/22/11 8:42 PM, Greg Sterijevski wrote:
> > If no one has objections, I would like to harmonize simpleregression with
> > the Regression Interfaces. What is the best way to proceed?
>
On 8/22/11 8:42 PM, Greg Sterijevski wrote:
> If no one has objections, I would like to harmonize simpleregression with
> the Regression Interfaces. What is the best way to proceed?
JFDI - go ahead and take a stab at a patch to do it.
Phil
>
> On Sun, Aug 21, 2011 at 9:25 PM, Greg Sterijevski
>
If no one has objections, I would like to harmonize simpleregression with
the Regression Interfaces. What is the best way to proceed?
On Sun, Aug 21, 2011 at 9:25 PM, Greg Sterijevski wrote:
> Opened a ticket. Submitted patches. -Greg
>
>
> On Sat, Aug 20, 2011 at 4:47 PM, Phil Steitz wrote:
>
>>
Opened a ticket. Submitted patches. -Greg
On Sat, Aug 20, 2011 at 4:47 PM, Phil Steitz wrote:
> On 8/12/11 9:30 PM, Phil Steitz wrote:
> > On 8/12/11 7:16 PM, Greg Sterijevski wrote:
> >> Hello All,
> >>
> >> Before I chum the water with more JIRA tickets, I thought I would see
> >> whether peop
On 8/12/11 9:30 PM, Phil Steitz wrote:
> On 8/12/11 7:16 PM, Greg Sterijevski wrote:
>> Hello All,
>>
>> Before I chum the water with more JIRA tickets, I thought I would see
>> whether people thought this was important.
>>
>> In the SimpleRegression you have two methods:
>>
>> public void addData(
As soon as you push the other changes, I will update my source and get to
work on this...
I thought SimpleRegression was a toy example, but after thinking about it,
there is much to like about the class.
-Greg
On Sat, Aug 13, 2011 at 1:16 AM, Phil Steitz wrote:
> On 8/12/11 10:59 PM, Greg Steri
On 8/12/11 10:59 PM, Greg Sterijevski wrote:
> Also, I was thinking that maybe it might be useful to bring SimpleRegression
> into line with the other regression techniques and give the user the ability
> to constrain the constant to zero?
+1 - just make sure to include clear javadoc and tests.
P
On 8/12/11 10:13 PM, Greg Sterijevski wrote:
> One more thing... (ala Detective Colombo).
>
> In add and remove observation there is a snippet which looks like:
>
> sumXX += dx * dx * (double) n / (n + 1d);
> sumYY += dy * dy * (double) n / (n + 1d);
> sumXY += d
Also, I was thinking that maybe it might be useful to bring SimpleRegression
into line with the other regression techniques and give the user the ability
to constrain the constant to zero?
-Greg
On Sat, Aug 13, 2011 at 12:13 AM, Greg Sterijevski
wrote:
> One more thing... (ala Detective Colombo)
One more thing... (ala Detective Colombo).
In add and remove observation there is a snippet which looks like:
sumXX += dx * dx * (double) n / (n + 1d);
sumYY += dy * dy * (double) n / (n + 1d);
sumXY += dx * dy * (double) n / (n + 1d);
xbar += dx /
+1 from me, on all counts! -Greg
On Fri, Aug 12, 2011 at 11:30 PM, Phil Steitz wrote:
> On 8/12/11 7:16 PM, Greg Sterijevski wrote:
> > Hello All,
> >
> > Before I chum the water with more JIRA tickets, I thought I would see
> > whether people thought this was important.
> >
> > In the SimpleReg
On 8/12/11 7:16 PM, Greg Sterijevski wrote:
> Hello All,
>
> Before I chum the water with more JIRA tickets, I thought I would see
> whether people thought this was important.
>
> In the SimpleRegression you have two methods:
>
> public void addData(double x, double y) {
> ...some code that is no
Hello All,
Before I chum the water with more JIRA tickets, I thought I would see
whether people thought this was important.
In the SimpleRegression you have two methods:
public void addData(double x, double y) {
...some code that is not germane to discussion..
if (n > 2) {
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