regression-testing

R - Testing equivalence of coefficients in multivariate multiple regression

由 核能气质少年 提交于 2021-02-07 09:01:56
问题 I'm trying to conduct a multivariate multiple regression analysis. Fortunately, I've found an excellent page demonstrating how to do so in Stata: http://www.ats.ucla.edu/stat/stata/dae/mvreg.htm The issue is that I'm using R, while I've figured out how to do the basics of running a multivariate multiple regression model in R, I'm still not sure how to see if coefficients are different for each dependent variable (as shown in the link). Does anyone know how to compute this analysis in R? Seems

R code to test the difference between coefficients of regressors from one regression

由 不羁岁月 提交于 2020-08-21 06:52:45
问题 I want to test whether coefficients in one linear regression are different from each other or whether at least one of them is significantly different from one certain value, say 0, this seems quite intuitive to do in Stata. For example webuse iris reg iris seplen sepwid petlen seplen==sepwid==petlen seplen==sepwid==petlen==0 I wonder how I can do this if I want to test this in R? 回答1: The car package has a simple function to do that. First, fit your model: model <- lm(Sepal.Length ~ Sepal

How can we test for the N+1 problem in JPA/Hibernate?

由 一个人想着一个人 提交于 2020-03-04 06:05:11
问题 I have a N+1 problem, and I’d like to write some kind of automated regression test because it impacts performance very much. I thought about spying the EntityManager and verifying its method createQuery() is called only once, but Hibernate don’t use it to initialize lazy relationships, thus it didn’t work. I could also try to shut down the JPA transaction between my repository and my service (or detach my entity) and look out for exceptions, but it’s really an ugly idea. To give us a frame,

OPA matcher for sap.m.MessageToast.show call?

由 若如初见. 提交于 2019-12-25 12:09:41
问题 How does a OPA match pattern for a sap.m.MessageToast.show call looks like? I looked into the Code of sap.m.MessageToast.show and assumed the use control is sap.ui.core.Popup . Therefore I tried the following matcher: iShouldSeeAToastMessage : function() { return this.waitFor({ controlType : "sap.ui.core.Popup", success : function (aDialog) { ok(true, "Found a Toast: " + aDialog[0]); }, errorMessage : "No Toast message detected!" }); }, Is the controlType correct? How could the matcher

Svd recomposition with Mathnet numerics library seems wrong

由 折月煮酒 提交于 2019-12-24 03:08:28
问题 I'm looking for non regression between Mathnet.Iridium and Mathnet.Numerics. Here is my code, using Mathnet.Numerics : double[][] symJaggedArray = new double[5][]; symJaggedArray[0] = new double[] { 3, 0, 0, 0, 0 }; symJaggedArray[1] = new double[] { 0, 2, 4, 0, 0 }; symJaggedArray[2] = new double[] { 0, 4, 5, -4, 5 }; symJaggedArray[3] = new double[] { 0, 0, -4, -8, 12 }; symJaggedArray[4] = new double[] { 0, 0, 5, 12, -5 }; symDenseMatrix = DenseMatrix.OfArray(new Matrix(symJaggedArray)

Numerical regression testing

由 邮差的信 提交于 2019-12-21 20:43:18
问题 I'm working on a scientific computing code (written in C++), and in addition to performing unit tests for the smaller components, I'd like to do regression testing on some of the numerical output by comparing to a "known-good" answer from previous revisions. There are a few features I'd like: Allow comparing numbers to a specified tolerance (for both roundoff error and looser expectations) Ability to distinguish between ints, doubles, etc, and to ignore text if necessary Well-formatted output

How can you unit test Leaflet JS maps?

由 流过昼夜 提交于 2019-12-19 17:37:51
问题 How can you unit test Leaflet JS maps? 回答1: I am really struggling with the same issue. Here is a link to some testing with the js test library 'mocha': http://blog.mathieu-leplatre.info/test-your-leaflet-applications-with-mocha.html However, I ran into further issues trying to call leaflet's sort of catch all 'L' function. The first was this: }(window, document)); ^ ReferenceError: window is not defined I remedied that issue with this bit of code: // Create globals so leaflet can load GLOBAL

Trying to implement python TestSuite

由 青春壹個敷衍的年華 提交于 2019-12-17 18:16:05
问题 I have two test cases (two different files) that I want to run together in a Test Suite. I can get the tests to run just by running python "normally" but when I select to run a python-unit test it says 0 tests run. Right now I'm just trying to get at least one test to run correectly. import usertest import configtest # first test import unittest # second test testSuite = unittest.TestSuite() testResult = unittest.TestResult() confTest = configtest.ConfigTestCase() testSuite.addTest(configtest

How to detect when all tests within a QUnit module is completed?

由 你说的曾经没有我的故事 提交于 2019-12-08 04:13:31
问题 For the purposes of test sequencing as well as preventing a test being interrupted. Also, is there any way to stop a module or test midway and reset QUnit (including all history results)? QUnit.moduleDone was the only thing I tried for testing module complete. But it applies for every single test within the module, not just the module as a whole. 回答1: It depends on whether QUnit is running when the tests are declared. If you stop it, declare all the tests, then start it the moduleDone

Numerical regression testing

由 試著忘記壹切 提交于 2019-12-04 13:45:41
I'm working on a scientific computing code (written in C++), and in addition to performing unit tests for the smaller components, I'd like to do regression testing on some of the numerical output by comparing to a "known-good" answer from previous revisions. There are a few features I'd like: Allow comparing numbers to a specified tolerance (for both roundoff error and looser expectations) Ability to distinguish between ints, doubles, etc, and to ignore text if necessary Well-formatted output to tell what went wrong and where: in a multi-column table of data, only show the column entry that
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