[jira] [Updated] (MATH-1471) BicubicInterpolatingFunction not interpolating correctly for non discrete y value
[ https://issues.apache.org/jira/browse/MATH-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Thomas Swinicki updated MATH-1471: -- Description: Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), the returned bicubic interpolating function returned returns the same result for variations in the estimated y value. For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and f(25, 25) = 6468. When I get the bicubic interpolating function for this and vary the estimated x, it works fine. For (21, 20), the function returns 730.016. When I input (20, 21), the function returns 64, which is f(20, 20). For any y value in between 20 and 25, the result is 64. This is the case for any function for which the y estimate is different from the value on the points. In other instances, it is varying x values that result in the same result while varying y estimates seem to work as expected. was: Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), the returned bicubic interpolating function returned returns the same result for variations in the estimated y value. For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and f(25, 25) = 6468. When I get the bicubic interpolating function for this and vary the estimated x, it works fine. For (21, 20), the function returns 730.016. When I input (20, 21), the function returns 64, which is f(20, 20). For any y value in between 20 and 25, the result is 64. This is the case for any function for which the y estimate is different from the value on the points. > BicubicInterpolatingFunction not interpolating correctly for non discrete y > value > - > > Key: MATH-1471 > URL: https://issues.apache.org/jira/browse/MATH-1471 > Project: Commons Math > Issue Type: Bug >Affects Versions: 3.6.1 > Environment: JDK 1.8.0_181 >Reporter: Thomas Swinicki >Priority: Major > > Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), > the returned bicubic interpolating function returned returns the same result > for variations in the estimated y value. > For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and > f(25, 25) = 6468. > When I get the bicubic interpolating function for this and vary the estimated > x, it works fine. For (21, 20), the function returns 730.016. When I input > (20, 21), the function returns 64, which is f(20, 20). For any y value in > between 20 and 25, the result is 64. This is the case for any function for > which the y estimate is different from the value on the points. > In other instances, it is varying x values that result in the same result > while varying y estimates seem to work as expected. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (MATH-1471) BicubicInterpolatingFunction not interpolating correctly for non discrete y value
[ https://issues.apache.org/jira/browse/MATH-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tom updated MATH-1471: -- Attachment: ApacheCommonsMathBiInterpolationTests.zip > BicubicInterpolatingFunction not interpolating correctly for non discrete y > value > - > > Key: MATH-1471 > URL: https://issues.apache.org/jira/browse/MATH-1471 > Project: Commons Math > Issue Type: Bug >Affects Versions: 3.6.1 > Environment: JDK 1.8.0_181 >Reporter: Tom >Priority: Major > Attachments: ApacheCommonsMathBiInterpolationTests.zip > > > Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), > the returned bicubic interpolating function returned returns the same result > for variations in the estimated y value. > For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and > f(25, 25) = 6468. > When I get the bicubic interpolating function for this and vary the estimated > x, it works fine. For (21, 20), the function returns 730.016. When I input > (20, 21), the function returns 64, which is f(20, 20). For any y value in > between 20 and 25, the result is 64. This is the case for any function for > which the y estimate is different from the value on the points. > In other instances, it is varying x values that result in the same result > while varying y estimates seem to work as expected. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (MATH-1471) BicubicInterpolatingFunction not interpolating correctly for non discrete y value
[ https://issues.apache.org/jira/browse/MATH-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tom updated MATH-1471: -- Attachment: Interpolate.java > BicubicInterpolatingFunction not interpolating correctly for non discrete y > value > - > > Key: MATH-1471 > URL: https://issues.apache.org/jira/browse/MATH-1471 > Project: Commons Math > Issue Type: Bug >Affects Versions: 3.6.1 > Environment: JDK 1.8.0_181 >Reporter: Tom >Priority: Major > Attachments: ApacheCommonsMathBiInterpolationTests.zip, > Interpolate.java, InterpolateTest.java > > > Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), > the returned bicubic interpolating function returned returns the same result > for variations in the estimated y value. > For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and > f(25, 25) = 6468. > When I get the bicubic interpolating function for this and vary the estimated > x, it works fine. For (21, 20), the function returns 730.016. When I input > (20, 21), the function returns 64, which is f(20, 20). For any y value in > between 20 and 25, the result is 64. This is the case for any function for > which the y estimate is different from the value on the points. > In other instances, it is varying x values that result in the same result > while varying y estimates seem to work as expected. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (MATH-1471) BicubicInterpolatingFunction not interpolating correctly for non discrete y value
[ https://issues.apache.org/jira/browse/MATH-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tom updated MATH-1471: -- Attachment: InterpolateTest.java > BicubicInterpolatingFunction not interpolating correctly for non discrete y > value > - > > Key: MATH-1471 > URL: https://issues.apache.org/jira/browse/MATH-1471 > Project: Commons Math > Issue Type: Bug >Affects Versions: 3.6.1 > Environment: JDK 1.8.0_181 >Reporter: Tom >Priority: Major > Attachments: ApacheCommonsMathBiInterpolationTests.zip, > Interpolate.java, InterpolateTest.java > > > Upon performing a bicubic interpolation with two point (x0, y0) and (x1, y1), > the returned bicubic interpolating function returned returns the same result > for variations in the estimated y value. > For example, my inputs are (20, 20) and (25, 25) with f(20, 20) = 64 and > f(25, 25) = 6468. > When I get the bicubic interpolating function for this and vary the estimated > x, it works fine. For (21, 20), the function returns 730.016. When I input > (20, 21), the function returns 64, which is f(20, 20). For any y value in > between 20 and 25, the result is 64. This is the case for any function for > which the y estimate is different from the value on the points. > In other instances, it is varying x values that result in the same result > while varying y estimates seem to work as expected. -- This message was sent by Atlassian JIRA (v7.6.3#76005)
