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Questions tagged [knime]

KNIME (Konstanz Information Miner) is a user-friendly graphical workbench for the entire data analysis process.

KNIME is an open-source data analysis software, with various plugins from different areas. It has plugins from text mining to image processing, including the chemical structures and high throughput experiments.

KNIME Desktop is available for Windows, Mac and Linux under GPL v3 (or a custom license).

KNIME stands for Konstanz Information Miner and can be run on a centralized server with an integrated web interface or as standalone Rich Client. The client is based on the Eclipse Platform with the plugin and update mechanism. KNIME also offers job scheduling.

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How to convert a RxXdfData to a data.frame on R?

Hi I recently integrated Revolution R entreprise to Knime (R nodes). I wanted to know if there is a way to convert RxXdfData class into a data.frame for Knime node processing (R snippets handle just data.frame objects). Thanks in advance
Ismail Akrim
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Convert continuous signal into discrete in Knime

I have predicted the Alarm line using Linear Regression and it seems quite convincing. However, i need to output in discrete values(As shown in Screenshot) Figure Description Predicted Alarm : * Sky Blue* Real Alarm : Green My Approach I have tried…
Danny
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How to convert graph to data points in R

I have a graph that was smoothed using Scatter.Smooth function. I need to get the co-ordinates given the X-axis being the date. The smoothed curve is generated in Knime R Node. I want the points so as to use it in a Line Plot node. Is there any…
Vini
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Finding missing values in big data

I have a number of tables that needs to be analysed. Currently the data is being cleansed as it has a lot of missing values. In some cases there are just one value missing and in other about 200 rows. Question How do I find what value should be…
Vini
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JDT's JavaCore class not seeing JavaModelManager in OSGi environment

I'm implementing plugin for Knime (eclipse-based analitics platform). My plugin used library (let say lib A.jar), which normally is a eclipse plugin (however there are also classes for normal, standalone use). This lib A uses JDT Core classes. When…
T. Gawęda
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What does "group measurements by" mean in the node Outlier Removal (Knime)?

I have imposed "box plot" as method and 1.5 as factor. Node description tells: "Subsets Select the columns by which the measurements should be grouped (example: plates, batches, runs...)" What is the function "group measurement by"? Aren't the…
Peter
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Parsing .txt files in Json format with a java in knime

I have .txt files with some junk at the top then json format. I need to parse them and pull strings from the json part and get these strings into a knime workflow. I have been trying to use a java snippet, but I can't get it to work. It doesn't have…
Tim B
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Getting error while creating workflow in Knime for text analytics

I have a set of URL from which I have to read data and execute a particular work-flow in Knime for determining word frequency. However I am getting error "No column with DocumentCells found!". I have attached reference image. Can someone please…
Angan
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KNIME node extension fails to execute: "Support code location could not be determined"

I'm creating a node extension for KNIME with the KNIME SDK (which is just an adapted Eclipse). I'm done with my code, I tested it in Eclipse, it worked perfectly. So I exported it, copied the .jar to the subfolder dropins in my KNIME installation,…
scenia
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How two combine Variables with different Time-Stamps?

I have two different tables with measured values in KNIME. Both contain different measured values of the same object and their specific Time-Stamps. I want to combine them by time. Variable1 has about 5.000 observations. Variable2 about 300.000…
ASAP_7
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How to check optional inputs?

I've been searching the web for hours and can't seem to find a hint on how to actually handle optional input ports in my NodeModel's execute function. According to the documentation, inData is never null nor contains null values. So how do I check…
scenia
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Execute java code on cancel workflow in Knime

I'm currently working with a few custom Knime nodes that interact with a separate Hadoop cluster, when cancelling a Knime workflow i basically want to be able to tell the cluster to kill the jobs it started. I'm thinking this would be a…
andrei
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Can we compare clusters with C-Index average?

I use K-Means algorithm to create clusters. As you know K-means algorithm needs cluster count as parameter. I try cluster counts as starting two from eight and calculate all C-Index of clusters in every looping then get the avegare of these…
cagin
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Generating PMML in Knime module

I'm currently attempting to build module for the Knime analytics platform. This is going to be a module that generates and passes on a PMML model as its output. So far I've only been able to accomplish this by manually creating a PMMLDocument and…
andrei
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KNIME - Java snippet - DoubleCell/Java type double []

I have a problem with node containing this column type: ListCell (Collection of: ListCell (Collection of: DoubleCell)) Data looks like this: [[-0.518, -1.431], [-1.431, -0.518]] Next node is Java Snippet. In input options, the only Java type…
jirinovo
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