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Parameter Optimization - Why do you optimize on test data
Hi all,I'm wondering why in the tutorial process and also in other processes, which were pasted here in the forum, parameters are optimized on the test data and not on the training data. If I'm...
View ArticleFP Growth Stack Overflow Error
Hi, I'm text mining on about 50 odd articles about (advanced) manufacturing and wish to see what kinds of words pop up in frequent combination with each other by using the FP Growth operator however it...
View ArticleCross-Validation returns different model
Hello,I am using RapidMiner Studio 7.2.002 and recognized something strange after training libSVM (nu-SVC, linear kernel) classifier within X-Validation and outside X-Validation (with the same...
View ArticleFW/BW Selection with predefined Attribute set?
hi,is it somehow possible to start the Forward /Backward Selection algorithm with a starting set of attributes? e.g I not want to begin with all or non of the attributes, but start from a selection of...
View ArticleOrder text labels in graphs
Hi, completely new to RM and really astonished about the possibilities I am just trying to solve following problem:I have a data set with some text columns. I want to show a graph of scatter or...
View ArticleReports: Modify sequence / Log scale for color data in report plot
Hi again, I have two questions to reports (report extension): 1. I have generated my first process with the report extension. I added the report generator and 3 different reports. Everything works good...
View ArticleCompare attribute columns based on value ranges?
hi,I want to compare the values from 2 attribute columns from 2 different excel files.. e.g radius1 and radius2,now I want to "identify" those as equal (meaning, their ID is the same) if they are equal...
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Predictions based on US baby names data?
Good day, I'm new to Rapid Miner and predictive analytics. I'm trying to move beyond the tutorials (which are great!) by using the US baby names (state-by-state) found on Kaggle. I'm able to load a...
View ArticleLoop Excel file and write for each cell a text document
Hi everyone, I am stuck with a hopefully pretty easy problem. I am using "Process Documents from files" operator and within it a "Cut Document" operator. What I want to do, is to extract a specific...
View ArticleHow to select previuos record
Hi, everyone.I'm newbie here (and sorry for my english) I have a question about a particular filter.I have a dataset with an ID, a Date and a nominal attribute.Dataset ex: 1 - 11/01/2016 - A2 -...
View ArticleAdding a column that performs a distinct count
Hi all,Very new to Rapidminer!I am needing to add a column into my table that runs a distinct count.This is a sample of my table currently: CaseNumber...
View ArticleExtract example set from Crossvalidation operator?
hi I want to extract the example set from training and testdata separately from the inner cross-validation operator process.. is that somehow possible? because I have only performance vector outputs...
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Financial Time Series Prediction
Hi I am a new user of rapidminer. I would like to make a Financial Time Series to forecast the future values of stock market performance (Mainly the Hang Seng Index of HK). I have tried to study this...
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Read ACCESS database error
Hi everyone,I can try read access but it error. somefile can read somefile cannot.
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how to open operator list and repositories
I closed repository by mistake, so I do not know how to import data now. Do you have any ideas to open repository again?
View Articlehelp with JOIN operator.
Hi ppl.Look what happens when I use JOIN operator to combine to dataset that contains just two examples. Resulting dataset has 4 examples, instead of two.Why?
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error message with decision tree
I am trying to make a decision tree and am a beginner with rapid miner.This is the error message I am getting.Can anyone help me with this?error message
View ArticleR extension - how to get started
Hey there,I am really new to the use of RapidMiner and R, and well I did not find anything in the internet on how to get started with the r Extension in RapidMiner that really breaks it down to the...
View Article"OK" button and return key on keyboard
Hi...I find often that some pop-up windows that require an "OK" or "Cancel" option vary. Some I have to physically click "OK" with the mouse (i.e. the return key on the keyboard does nothing), and...
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How to use standardization /normalization correctly on test/Train data set?
hi,I read that norm./standardization should be applied to train set separately, then the preprocessing model of the normalization/std. should be applied to the test data set,but what about the...
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