Re: Php png attachement with commons.mail
Dear all, Thank you for you help. I realised that I had two problems. First one was the space and %20 problem in the address The second one was a .htaccess. I did not allow 127.0.0.1 to acces my php script. Is it a bug ? If you can not access the URL because of a htaccess deny, you receive org.apache.commons.mail.EmailException: Invalid URL Thank you Sébastien Bonaimé Tel: +33 (0)1 44 27 24 17 Fax: +33 (0)1 44 27 38 94 GEOSCOPE Dept Sismologie Institut de Physique du Globe Paris Tour 14-15, 4ème étage 4, place Jussieu 75252 Paris cedex 05 France Le 20 janv. 10 à 20:18, Siegfried Goeschl a écrit : Hi Stefano, good catch ... :-) Siegfried Goeschl Stefano Bagnara wrote: The whitespace is not a valid character for URLs. Your browser automatically convert the space to %20 when making the request. Try using %20 instead of space in your code (param2 value) and I guess it will work. Stefano 2010/1/20 Sébastien Bonaimé bona...@ipgp.fr: I have the following error: org.apache.commons.mail.EmailException: Invalid URL set:http://myserver.mydomain.org/myphpscript.php?param1=122param2=2009-01-01 20:10:52 I changed name of the server, script and parameters... Do you think it is possible to do that ? In my browser, http://myserver.mydomain.org/myphpscript.php?param1=122param2=2009-01-01 20:20:20 returns a correct png image. I use the code that I found here: http://commons.apache.org/email/userguide.html Thank you - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: Php png attachement with commons.mail
Hi Sebastien, not sure if you got the execption due to the space issue or the .htaccess problem. Do you have a stack trace for the access denied? Cheers, Siegfried Goeschl Sébastien Bonaimé wrote: Dear all, Thank you for you help. I realised that I had two problems. First one was the space and %20 problem in the address The second one was a .htaccess. I did not allow 127.0.0.1 to acces my php script. Is it a bug ? If you can not access the URL because of a htaccess deny, you receive org.apache.commons.mail.EmailException: Invalid URL Thank you Sébastien Bonaimé Tel: +33 (0)1 44 27 24 17 Fax: +33 (0)1 44 27 38 94 GEOSCOPE Dept Sismologie Institut de Physique du Globe Paris Tour 14-15, 4ème étage 4, place Jussieu 75252 Paris cedex 05 France Le 20 janv. 10 à 20:18, Siegfried Goeschl a écrit : Hi Stefano, good catch ... :-) Siegfried Goeschl Stefano Bagnara wrote: The whitespace is not a valid character for URLs. Your browser automatically convert the space to %20 when making the request. Try using %20 instead of space in your code (param2 value) and I guess it will work. Stefano 2010/1/20 Sébastien Bonaimé bona...@ipgp.fr: I have the following error: org.apache.commons.mail.EmailException: Invalid URL set:http://myserver.mydomain.org/myphpscript.php?param1=122param2=2009-01-01 20:10:52 I changed name of the server, script and parameters... Do you think it is possible to do that ? In my browser, http://myserver.mydomain.org/myphpscript.php?param1=122param2=2009-01-01 20:20:20 returns a correct png image. I use the code that I found here: http://commons.apache.org/email/userguide.html Thank you - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
RE: [MATH] Need help on math libraries for curve generation
Luc
Thanks for your comments. I have taken the 2DCurveExponentialX as a first
attempt here. The basic equation is y = a + b*e^(c*x) (is the math e, natural
exponential function). I have written the following implementation of the of
the ParametricRealFunction for this, see below. Not having any experience with
this type a implementation I did the best I could. However, I am getting this
exception:
org.apache.commons.math.optimization.OptimizationException: unable to compute
covariances: singular problem
I unfortunately do not have any idea what this means or how to remedy it. Your
help is appreciated
Thanks
Roger
/**
* implementation of ParametricRealFunction clase for
*y = a + be^(cx)
*/
public static class TwoDCurveNaturalLogX implements ParametricRealFunction
{
/*
*double[] coeffs = must include at least 1 but not more than 3
coefficients.
*/
@Override
public double value(double x, double[] coeffs) throws
FunctionEvaluationException
{
if(coeffs == null || coeffs.length == 0 || coeffs.length 3)
{
if (coeffs != null)
{
for (int ii=0; ii coeffs.length; ii++)
{
//System.out.println(\t coeffs [+ii+]+coeffs[ii]);
}
}
else
{
//System.out.println(No coeffs were passed in);
}
throw new FunctionEvaluationException(coeffs);
}
double a = coeffs[0];
double b = 0;
double c = 0;
if(coeffs.length = 2)
b = coeffs[1];
if(coeffs.length = 3)
c = coeffs[2];
double value = a + b*Math.pow(Math.E, (c*x));
//System.out.println(\t value [+value+]);
return value;
}
/*
* derivative: y = b*c*e^(c*x)
* double[] coeffs = must include at least 1 but not more than 3
coefficients.
*/
@Override
public double[] gradient(double x, double[] coeffs) throws
FunctionEvaluationException {
if(coeffs == null || coeffs.length ==0 || coeffs.length 3)
{
throw new FunctionEvaluationException(coeffs);
}
System.out.println(\t coeffs length = [+coeffs.length+]);
double a = coeffs[0];
double b = 0;
double c = 0;
if(coeffs.length = 2)
b = coeffs[1];
if(coeffs.length = 3)
c = coeffs[2];
double gradient = b*c*Math.pow(Math.E, (c*x));
double[] gradientVector = new double[3];
gradientVector[0] = gradient;
gradientVector[1] = 0;
gradientVector[2] = 0;
System.out.println(\t gradient [+gradient+]);
return gradientVector;
}
}
Luc
From: roger.b...@creoss.com
Sent: Thursday, January 21, 2010 11:46 AM
To: user@commons.apache.org
Subject: [MATH] Need help on math libraries for curve generation
We are evaluating the apache math library
(http://commons.apache.org/math/index.html) for use on one of projects. In this
project we need to generate curves based on the following functions:
2DCurve3rdOrderXPolynomial
2DCurveExponentialX
2DCurveNaturalLogX
2DCurveSquareRootX
2DCurveTimeConstantX
2DCurveExponentialDecayX
2DCurveLogarithmicDecayX
3DCurve4thOrderXPolynomial
3DCurveExponentialX
3DCurveNaturalLogX
3DCurveSquareRootX
3DCurveTimeConstantX
3DCurve3rdOrderZTimes4thOrderX
3DCurveExponentialDecayX
3DCurveLogarithmicDecayX
3DCurveExponentialDecayZ
3DCurveLogarithmicDecayZ
3DCurveHyprebolicDecayX
For each function generated from data we also need:
Coefficient of Determination
Sum of Squares
Standard Error of Regression
Does anyone have experience with this library to direct us to which classes can
be used to handle these requirements?
Thanks
Roger Ball
Re: [MATH] Need help on math libraries for curve generation
roger.b...@creoss.com a écrit :
Luc
Thanks for your comments. I have taken the 2DCurveExponentialX as a
first attempt here. The basic equation is y = a + b*e^(c*x) (is the math e,
natural exponential function). I have written the following implementation of
the of the ParametricRealFunction for this, see below. Not having any
experience with this type a implementation I did the best I could. However, I
am getting this exception:
org.apache.commons.math.optimization.OptimizationException: unable to compute
covariances: singular problem
I unfortunately do not have any idea what this means or how to remedy it.
Your help is appreciated
Thanks
Roger
/**
* implementation of ParametricRealFunction clase for
*y = a + be^(cx)
*/
public static class TwoDCurveNaturalLogX implements ParametricRealFunction
{
/*
*double[] coeffs = must include at least 1 but not more than 3
coefficients.
*/
@Override
public double value(double x, double[] coeffs) throws
FunctionEvaluationException
{
if(coeffs == null || coeffs.length == 0 || coeffs.length 3)
{
if (coeffs != null)
{
for (int ii=0; ii coeffs.length; ii++)
{
//System.out.println(\t coeffs [+ii+]+coeffs[ii]);
}
}
else
{
//System.out.println(No coeffs were passed in);
}
throw new FunctionEvaluationException(coeffs);
}
double a = coeffs[0];
double b = 0;
double c = 0;
if(coeffs.length = 2)
b = coeffs[1];
if(coeffs.length = 3)
c = coeffs[2];
double value = a + b*Math.pow(Math.E, (c*x));
//System.out.println(\t value [+value+]);
return value;
}
/*
* derivative: y = b*c*e^(c*x)
* double[] coeffs = must include at least 1 but not more than 3
coefficients.
*/
@Override
public double[] gradient(double x, double[] coeffs) throws
FunctionEvaluationException {
if(coeffs == null || coeffs.length ==0 || coeffs.length 3)
{
throw new FunctionEvaluationException(coeffs);
}
System.out.println(\t coeffs length = [+coeffs.length+]);
double a = coeffs[0];
double b = 0;
double c = 0;
if(coeffs.length = 2)
b = coeffs[1];
if(coeffs.length = 3)
c = coeffs[2];
double gradient = b*c*Math.pow(Math.E, (c*x));
double[] gradientVector = new double[3];
gradientVector[0] = gradient;
gradientVector[1] = 0;
gradientVector[2] = 0;
The gradient is computed with respect to the coefficients (i.e. a, b and
c here), not with respect to the independant variable x. It also *must*
have the same length as the parameters array. So you should probably use:
public double[] gradient(double x, double[] coeffs)
throws FunctionEvaluationException {
final n = coeffs.length;
final double b = (n 1) ? coeffs[1] : 0;
final double c = (n 2) ? coeffs[2] : 0;
double[] gradient = new double[n];
gradient[0] = 1.0; // this is dy/da
if (n 1) {
final double exp = Math.exp(c * x);
gradient[1] = exp; // this is dy/db
if (n 2) {
gradient[2] = b * x * exp; // this is dy/dc
}
}
return gradient;
}
The reason you get a singular problem is proably because of your wrong
gradient, the optimizer thinks the problem does not depend on b and c
(you tell it dy/db = 0 and dy/dc = 0), so it has no way to know how to
choose b and c. The jacobian matrix has too many zeroes.
I also suggest to use Math.exp(c * x) rather than Math.pow(Math.E, c *
x), it is more stable numerically and probably faster.
hope this helps
Luc
System.out.println(\t gradient [+gradient+]);
return gradientVector;
}
}
Luc
From: roger.b...@creoss.com
Sent: Thursday, January 21, 2010 11:46 AM
To: user@commons.apache.org
Subject: [MATH] Need help on math libraries for curve generation
We are evaluating the apache math library
(http://commons.apache.org/math/index.html) for use on one of projects. In
this project we need to generate curves based on the following functions:
2DCurve3rdOrderXPolynomial
2DCurveExponentialX
2DCurveNaturalLogX
2DCurveSquareRootX
2DCurveTimeConstantX
2DCurveExponentialDecayX
2DCurveLogarithmicDecayX
3DCurve4thOrderXPolynomial
3DCurveExponentialX
3DCurveNaturalLogX
3DCurveSquareRootX
3DCurveTimeConstantX
3DCurve3rdOrderZTimes4thOrderX
3DCurveExponentialDecayX
3DCurveLogarithmicDecayX
