KNIME快速开发向导

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KNIME Quickstart Guide

KNIME Quickstart Guide ................................................................................................................................................... 1

License ...................................................................................................................................................................... 2

Versions ..................................................................................................................................................................... 2

Installation ................................................................................................................................................................. 2

Welcome Screen / Additional features ...................................................................................................................... 2

Workbench overview ................................................................................................................................................. 3

Connecting Nodes ..................................................................................................................................................... 7

Configuring Nodes .................................................................................................................................................... 7

Executing Nodes ....................................................................................................................................................... 9

Inspecting the Results ............................................................................................................................................... 9

Hiliting ............................................................................................................................................................... 10

Embark on Your Own Voyage of Discovery! ............................................................................................................... 10

KNIME Workbench User Guide ....................................................................................................................................... 11

Description of Available Views .................................................................................................................................... 11

................................................................................................................................................................................. 11

Workflow Projects ................................................................................................................................................... 11

KNIME.................................................................................................................................................................... 15

KNIME GUI ........................................................................................................................................................... 16

Master Key .............................................................................................................................................................. 17

Workflow Editor .......................................................................................................................................................... 17

Node Options .......................................................................................................................................................... 17

Configure ............................................................................................................................................................ 17

Execute ............................................................................................................................................................... 17

Execute All ......................................................................................................................................................... 17

Execute and Open View ..................................................................................................................................... 18

Open View .......................................................................................................................................................... 18

Connections ............................................................................................................................................................. 19

Import/Export of workflows ........................................................................................................................................ 19

Import of Workflows ............................................................................................................................................... 19

Export of Workflows ............................................................................................................................................... 20

Using Meta Nodes ............................................................................................................................................................ 21

Create Pre-defined Meta Node ..................................................................................................................................... 22

Create Customized Meta Node .................................................................................................................................... 22

Inside a Meta Node ...................................................................................................................................................... 23

Meta Nodes From Outside ........................................................................................................................................... 24

States of Meta Nodes .............................................................................................................................................. 24

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licensing arrangements.

Versions

exploring KNIME, build own workflows and explore your data.

there are additional plug-ins for KNIME e.g. an R and Weka integration, or the

integration of the Chemistry Development Kit with additional nodes for the

processing of chemical structures, compounds, etc. You can download these features

also later from within KNIME (File, Update KNIME...)

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Workbench overview

The KNIME Workbench is organized as follows:

When a node is dragged onto the workflow editor the status light shows red, which means

that the node has to be configured in order to be able to be executed. A node is configured

by right clicking it, choosing „Configure“, and adjusting the necessary settings in the node's

dialog.

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When the dialog is closed by pressing the „OK“ button, the node is configured and the

status light changes to yellow: the node is ready to be executed. Right-click on the node

again shows an enabled „Execute“ option; pressing it will execute the node and the result

of this node will be available at the out-port. After a successful execution the stauts light of

the node is green.

The result(s) can be inspected by exploring the out-port view(s): the last entries in the

Nodes are typed such that only ports of the same type can be connected.

Data Port: The most common type is the data port (a white triangle) which transfers flat

data tables from node to node.

Database Port: Nodes executing commands inside a database can be recognized by their

database ports (brown square):

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PMML Ports: Data Mining nodes learn a model which is passed to the referring predictor

node via a blue squared PMML port.

Other Ports: Whenever a node provides data which does not fit a flat data table structure

a general purpose port for structured data is used (dark cyan square). Port s which are

neither data, database, PMML, or ports for structured data are displayed as “unknown”

We now want to take you step-by-step through the process of building a small, simple

workflow: we read in data from an ASCII file, assign color to it, cluster the data and display

the data in a table and a scatter plot. After we execute this flow we will examine the data

model that has been built. We assume you have just started KNIME with an empty

workflow.