Cleaning 2D chemical structures
Hello,I'm looking to have KNIME perform 2 specific clean-ups on a set of structures:1) Remove hydrogen atoms that are not used to specify stereochemical configuration.2) Flatten out any 3D structures...
View ArticleHow to use SMOTE node in knime with integer dataset's columns?
Hi all,I have to use the node "SMOTE" in the cross-validation metanode (I have put it after the X-partitioner and before the classifier, could it be right?). However, I have several errors when my...
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Browse button and valid URL field disabled in File Reader
Hi,I am new to KNIME. I just dragged and dropped the file knime://EXAMPLES/003_Preprocessing/003001_SimpleFlow_with_Statistics onto my LOCAL workspace. On right clicking "file reader" and trying to...
View ArticleCreating NodeFactories at runtime
I need to create several nodes which can share plenty of common functionality and I would like to avoid creating dozens of "dumb" NodeFactory implementations. The structure could be abstracted so far,...
View ArticleKnime on Linux
Discuss how to install knime on linux systemsDiscuss how to configureDiscuss how to execute workspaces
View ArticleChange schema of Input file dynamically
I need to access a set of file names from database, and read those files in my workflow.I am able to accomplish this, by lopping over returned result from database, and convertinf ppah to a flow...
View ArticleKNIME 3.1: GroupBy Node- Weird Performance issue
Some time ago in KNIME 2 I created a workflow that should tax the system in terms of RAM and CPU resources. Bascially to compare systems with more or lesser hardware.Note that it doesn't make any sense...
View ArticleMaking a new image from a certain area from an image
Okay the title might be vague, but what I want to achieve is the following:- Select a rectangular area, always a fixed position and size on the image.- Cut this selection from the original image,...
View ArticleProblems with Selenium
I'm having some difficulties with Selenium for Knime. My aim is to scrape data from web pages which need authentication. I've downloaded the example workspaces from http://seleniumnodes.com/workflows,...
View ArticleMeasuring interpolated image intensity at subpixel positions
How can I measure image intensity values provided I have coordinates x,y,z (as double or float) and a given image?For example, I'd take a distance map and a table with coordinates, then I'd like to...
View ArticleSequence Numbers
Hey,Probably a simple one, but I'm wanting to create sequence numbers across my data.What I have is:Customers sorted by ID numberEach customer is then sorted by a date/time attribute, from oldest to...
View ArticleUnitTests in SDK Knime
I have downloaded eclipse_knime_3.1.0 x64.I have problem with running unit tests for my nodes since one of my nodes use:import org.knime.core.util.FileUtil;I run unit test in eclipse by click on the...
View ArticlePIVOT node without types combinations
Hi all,I'm new to the software and that forum, so hello to everyone :)I'm trying to reshape a large dataset, creating distinct counts of each column item using the pivot node.A | XX...
View ArticleSegment Cropper duplicates row
I have a workflow in which the segment cropper is used twice. However in one case it works normal (Image without ROI), in the other case (cut out ROI) it duplicates the row. The latter image cropper...
View ArticleNo connection to MS Access Database
Hi,I have a problem to connect KNIME with my MS Access Database.I get the following error message:ERROR Database Connector 0:1 Execute failed: Could not create connection to database: Driver...
View ArticleHow to undersample in percentage terms majority class using knime?
I'd like to undersample the majority class before SMOTING, but I can't find a node that undersamples at a percentage level. I know that EqualSizeSampling exists, but I don't want equal size here, but...
View ArticleIs there a method in Knime to make CBO oversampling
I need to oversample my minority class. I'd like to know if there's a method in knime like CBO. I have found just SMOTE till now.
View ArticleClarification on the functioning of the Model Acceptability Criteria node
Hi novamechanics staff and users,As another user pointed out time ago, I'm confused about the input of Model Acceptability Criteria node...
View ArticleExtract the sentences containing particular words
Hi all,I want to extract sentences which contain specific words from a table. For this I built a workflow as shown in the screenshot. But the strings to document shows error : Duplicate column name. Is...
View ArticleRegular expression
Hi all,How can i give a regular expression in row filter to extract sentences that contain word "increase ".give some tips for regular expressions
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