java.lang.IllegalArgumentException: ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search!

JIRA | Nidhi Mehta | 2 years ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    ntr = h2o.importFile(h,"/Users/nidhimehta/Desktop/german/trn.csv", key="ntr") nts = h2o.importFile(h,"/Users/nidhimehta/Desktop/german/tst.csv", key="nts") ntr nts myX = 1:20 myY = 21 ntr$C21 = as.factor(ntr$C21) nts$C21 = as.factor(nts$C21) gg = h2o.glm(x=myX,y=myY,training_frame=ntr,validation_frame=nts,lambda_search=T,nlambdas=1) | | 0% Got exception 'class java.lang.IllegalArgumentException', with msg 'ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! ' java.lang.IllegalArgumentException: ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! at hex.Model$Output.<init>(Model.java:217) at hex.SupervisedModel$SupervisedOutput.<init>(SupervisedModel.java:66) at hex.glm.GLMModel$GLMOutput.<init>(GLMModel.java:642) at hex.glm.GLM.init(GLM.java:224) at hex.glm.GLM$GLMDriver.compute2(GLM.java:420) at water.H2O$H2OCountedCompleter.compute(H2O.java:682) at jsr166y.CountedCompleter.exec(CountedCompleter.java:429) at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263) at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974) at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477) at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) Error: 'ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! A warning would be okay but exception is bad.

    JIRA | 2 years ago | Nidhi Mehta
    java.lang.IllegalArgumentException: ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search!
  2. 0

    ntr = h2o.importFile(h,"/Users/nidhimehta/Desktop/german/trn.csv", key="ntr") nts = h2o.importFile(h,"/Users/nidhimehta/Desktop/german/tst.csv", key="nts") ntr nts myX = 1:20 myY = 21 ntr$C21 = as.factor(ntr$C21) nts$C21 = as.factor(nts$C21) gg = h2o.glm(x=myX,y=myY,training_frame=ntr,validation_frame=nts,lambda_search=T,nlambdas=1) | | 0% Got exception 'class java.lang.IllegalArgumentException', with msg 'ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! ' java.lang.IllegalArgumentException: ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! at hex.Model$Output.<init>(Model.java:217) at hex.SupervisedModel$SupervisedOutput.<init>(SupervisedModel.java:66) at hex.glm.GLMModel$GLMOutput.<init>(GLMModel.java:642) at hex.glm.GLM.init(GLM.java:224) at hex.glm.GLM$GLMDriver.compute2(GLM.java:420) at water.H2O$H2OCountedCompleter.compute(H2O.java:682) at jsr166y.CountedCompleter.exec(CountedCompleter.java:429) at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263) at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974) at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477) at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) Error: 'ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search! A warning would be okay but exception is bad.

    JIRA | 2 years ago | Nidhi Mehta
    java.lang.IllegalArgumentException: ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search!

    Root Cause Analysis

    1. java.lang.IllegalArgumentException

      ERROR on field: nlambdas: Number of lambdas must be > 1 when running with lambda_search!

      at hex.Model$Output.<init>()
    2. hex
      SupervisedModel$SupervisedOutput.<init>
      1. hex.Model$Output.<init>(Model.java:217)
      2. hex.SupervisedModel$SupervisedOutput.<init>(SupervisedModel.java:66)
      2 frames
    3. hex.glm
      GLM$GLMDriver.compute2
      1. hex.glm.GLMModel$GLMOutput.<init>(GLMModel.java:642)
      2. hex.glm.GLM.init(GLM.java:224)
      3. hex.glm.GLM$GLMDriver.compute2(GLM.java:420)
      3 frames
    4. water
      H2O$H2OCountedCompleter.compute
      1. water.H2O$H2OCountedCompleter.compute(H2O.java:682)
      1 frame
    5. jsr166y
      ForkJoinWorkerThread.run
      1. jsr166y.CountedCompleter.exec(CountedCompleter.java:429)
      2. jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
      3. jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
      4. jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
      5. jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
      5 frames