如何解决如何为Python中的每个行排列快速跨列求和
假设我有一个 n x k 矩阵 X。我想得到各列的总和，但对于行的每个排列。因此，如果我的矩阵是 [[1,2],[3,4]]，我想要的输出将是 [1+2,1+4,3+2,3+4]。我第一次尝试解决方案时生成了一个 MWE 示例。我希望我能得到一些帮助以减少计算时间。
我的实际问题有 n=160 和 k=4，运行时间很长（在撰写本文时，它仍在运行）。
import pandas as pd
import numpy as np
import itertools
n = 4
k = 3
X = np.random.randint(0,10,(n,k))
df = pd.DataFrame(X)
df
0 1 2
0 2 9 2
1 7 6 4
2 3 7 0
3 5 0 0
ixi = df.index.tolist()
ixc = df.columns.tolist()
psum = np.array([df.lookup(i,ixc).sum() for i in
itertools.product(ixi,repeat=len(ixc))])
解决方法
你可以试试
：MultiException stack 1 of 3
javax.validation.ValidationException: HV000183: Unable to initialize 'javax.el.ExpressionFactory'. Check that you have the EL dependencies on the classpath,or use ParameterMessageInterpolator instead
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.buildExpressionFactory(ResourceBundleMessageInterpolator.java:206)
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.<init>(ResourceBundleMessageInterpolator.java:94)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getDefaultMessageInterpolator(AbstractConfigurationImpl.java:559)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getDefaultMessageInterpolatorConfiguredWithClassLoader(AbstractConfigurationImpl.java:759)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getMessageInterpolator(AbstractConfigurationImpl.java:468)
at org.hibernate.validator.internal.engine.ValidatorFactoryImpl.<init>(ValidatorFactoryImpl.java:147)
at org.hibernate.validator.HibernateValidator.buildValidatorFactory(HibernateValidator.java:38)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.buildValidatorFactory(AbstractConfigurationImpl.java:435)
at org.glassfish.jersey.server.validation.internal.ValidationBinder$DefaultValidatorFactoryProvider.get(ValidationBinder.java:136)
MultiException stack 2 of 3
java.lang.IllegalArgumentException: While attempting to resolve the dependencies of org.glassfish.jersey.server.validation.internal.ValidationBinder$ConfiguredValidatorProvider errors were found
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:224)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:334)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:463)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:59)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:47)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:74)
MultiException stack 3 of 3
java.lang.IllegalStateException: Unable to perform operation: resolve on org.glassfish.jersey.server.validation.internal.ValidationBinder$ConfiguredValidatorProvider
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:363)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:463)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:59)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:47)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:74)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:131)
at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:176)
at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:98)
MultiException stack 1 of 3
javax.validation.ValidationException: HV000183: Unable to initialize 'javax.el.ExpressionFactory'. Check that you have the EL dependencies on the classpath,or use ParameterMessageInterpolator instead
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.buildExpressionFactory(ResourceBundleMessageInterpolator.java:206)
at org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator.<init>(ResourceBundleMessageInterpolator.java:94)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getDefaultMessageInterpolator(AbstractConfigurationImpl.java:559)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getDefaultMessageInterpolatorConfiguredWithClassLoader(AbstractConfigurationImpl.java:759)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.getMessageInterpolator(AbstractConfigurationImpl.java:468)
at org.hibernate.validator.internal.engine.ValidatorFactoryImpl.<init>(ValidatorFactoryImpl.java:147)
at org.hibernate.validator.HibernateValidator.buildValidatorFactory(HibernateValidator.java:38)
at org.hibernate.validator.internal.engine.AbstractConfigurationImpl.buildValidatorFactory(AbstractConfigurationImpl.java:435)
at org.glassfish.jersey.server.validation.internal.ValidationBinder$DefaultValidatorFactoryProvider.get(ValidationBinder.java:136)
MultiException stack 2 of 3
java.lang.IllegalArgumentException: While attempting to resolve the dependencies of org.glassfish.jersey.server.validation.internal.ValidationBinder$ConfiguredValidatorProvider errors were found
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:224)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:334)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:463)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:59)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:47)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:74)
MultiException stack 3 of 3
java.lang.IllegalStateException: Unable to perform operation: resolve on org.glassfish.jersey.server.validation.internal.ValidationBinder$ConfiguredValidatorProvider
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:363)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:463)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:59)
at org.jvnet.hk2.internal.SingletonContext$1.compute(SingletonContext.java:47)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture$1.call(Cache.java:74)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.glassfish.hk2.utilities.cache.Cache$OriginThreadAwareFuture.run(Cache.java:131)
at org.glassfish.hk2.utilities.cache.Cache.compute(Cache.java:176)
at org.jvnet.hk2.internal.SingletonContext.findOrCreate(SingletonContext.java:98)
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