Orange: Correlations - Revision history

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Onnowpurbo: Created page with "Sumber: https://docs.biolab.si//3/visual-programming/widgets/data/correlations.html Compute all pairwise attribute correlations. Inputs Data: input dataset Outputs..."

2020-01-12T06:09:07Z

Created page with "Sumber: https://docs.biolab.si//3/visual-programming/widgets/data/correlations.html Compute all pairwise attribute correlations. Inputs Data: input dataset Outputs..."

New page

Sumber: https://docs.biolab.si//3/visual-programming/widgets/data/correlations.html

Compute all pairwise attribute correlations.

Inputs

Data: input dataset

Outputs

Data: input dataset

Features: selected pair of features

Correlations: data table with correlation scores

Correlations computes Pearson or Spearman correlation scores for all pairs of features in a dataset. These methods can only detect monotonic relationship.

../../_images/Correlations-stamped.png

Correlation measure:

Pairwise Pearson correlation.

Pairwise Spearman correlation.

Filter for finding attribute pairs.

A list of attribute pairs with correlation coefficient. Press Finished to stop computation for large datasets.

Access widget help and produce report.

Example

Correlations can be computed only for numeric (continuous) features, so we will use housing as an example data set. Load it in the File widget and connect it to Correlations. Positively correlated feature pairs will be at the top of the list and negatively correlated will be at the bottom.

../../_images/Correlations-links.png

Go to the most negatively correlated pair, DIS-NOX. Now connect Scatter Plot to Correlations and set two outputs, Data to Data and Features to Features. Observe how the feature pair is immediately set in the scatter plot. Looks like the two features are indeed negatively correlated.

../../_images/Correlations-Example.png

==Referensi==

* https://docs.biolab.si//3/visual-programming/widgets/data/correlations.html

==Pranala Menarik==

* [[Orange]]

← Older revision		Revision as of 02:58, 20 April 2020
Line 33:		Line 33:


−	~~Cek~~ pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan widget Scatter Plot ke widget Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam widget Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.	+	Untuk mencek pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan widget Scatter Plot ke widget Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam widget Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.

	[[File:Correlations-Example.png\|center\|600px\|thumb]]		[[File:Correlations-Example.png\|center\|600px\|thumb]]

@@ Line 30: / Line 30: @@
 Widget Correlations menghitung korelasi hanya untuk feature numerik (continuous), jadi kita akan menggunakan housing sebagai contoh dataset. Load dataset housing menggunakan widget File dan hubungkan ke widget Correlations. Pasangan fitur yang berkorelasi positif akan berada di bagian atas daftar dan berkorelasi negatif akan berada di bagian bawah.
-[[File:Correlations-links.png|center|200px|thumb]]
+[[File:Correlations-links.png|center|400px|thumb]]
 Cek pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan widget Scatter Plot ke widget Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam widget Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.
-[[File:Correlations-Example.png|center|200px|thumb]]
+[[File:Correlations-Example.png|center|600px|thumb]]
 ==Referensi==

@@ Line 2: / Line 2: @@
-Hitung semua korelasi atribut berpasangan.
+Widget Correlations meng-hitung semua korelasi atribut berpasangan.
 ==Input==
@@ Line 14: / Line 14: @@
   Correlations: data table with correlation scores
-Korelasi menghitung skor korelasi Pearson atau Spearman untuk semua pasangan fitur dalam dataset. Metode-metode ini hanya dapat mendeteksi hubungan monoton.
+Widget Correlations menghitung skor korelasi Pearson atau Spearman untuk semua pasangan fitur dalam dataset. Metode-metode ini hanya dapat mendeteksi hubungan monoton.
 [[File:Correlations-stamped.png|center|200px|thumb]]
@@ Line 28: / Line 28: @@
 ==Contoh==
-Korelasi dapat dihitung hanya untuk feature numerik (continuous), jadi kita akan menggunakan housing sebagai contoh dataset. Load di File widget dan hubungkan ke Correlations. Pasangan fitur yang berkorelasi positif akan berada di bagian atas daftar dan berkorelasi negatif akan berada di bagian bawah.
+Widget Correlations menghitung korelasi hanya untuk feature numerik (continuous), jadi kita akan menggunakan housing sebagai contoh dataset. Load dataset housing menggunakan widget File dan hubungkan ke widget Correlations. Pasangan fitur yang berkorelasi positif akan berada di bagian atas daftar dan berkorelasi negatif akan berada di bagian bawah.
 [[File:Correlations-links.png|center|200px|thumb]]
-Cek pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan Scatter Plot ke Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.
+Cek pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan widget Scatter Plot ke widget Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam widget Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.
 [[File:Correlations-Example.png|center|200px|thumb]]

← Older revision		Revision as of 03:36, 31 January 2020
Line 33:		Line 33:


−	~~Go to the most negatively correlated pair~~, DIS-NOX. ~~Now connect~~ Scatter Plot to Correlations ~~and set two outputs~~, Data to Data ~~and Features to Features~~. ~~Observe how the feature pair is immediately~~ set ~~in the scatter plot~~. ~~Looks like the two features are indeed negatively correlated~~.	+	Cek pasangan yang paling berkorelasi negatif, DIS-NOX. Sekarang hubungkan Scatter Plot ke Correlations dan atur dua output, Data ke Data dan Feature ke Feature. Amati bagaimana pasangan fitur segera di set dalam Scatter Plot. Sepertinya kedua fitur tersebut memang berkorelasi negatif.

	[[File:Correlations-Example.png\|center\|200px\|thumb]]		[[File:Correlations-Example.png\|center\|200px\|thumb]]

@@ Line 28: / Line 28: @@
 ==Contoh==
-Correlations can be computed only for numeric (continuous) features, so we will use housing as an example data set. Load it in the File widget and connect it to Correlations. Positively correlated feature pairs will be at the top of the list and negatively correlated will be at the bottom.
+Korelasi dapat dihitung hanya untuk feature numerik (continuous), jadi kita akan menggunakan housing sebagai contoh dataset. Load di File widget dan hubungkan ke Correlations. Pasangan fitur yang berkorelasi positif akan berada di bagian atas daftar dan berkorelasi negatif akan berada di bagian bawah.
 [[File:Correlations-links.png|center|200px|thumb]]
@@ Line 36: / Line 36: @@
 [[File:Correlations-Example.png|center|200px|thumb]]
 ==Referensi==

@@ Line 4: / Line 4: @@
 Compute all pairwise attribute correlations.
-Inputs
+==Input==
-    Data: input dataset
+ Data: input dataset
-Outputs
+==Output==
-    Data: input dataset
+ Data: input dataset
+ Features: selected pair of features
-    Features: selected pair of features
+ Correlations: data table with correlation scores
 Correlations computes Pearson or Spearman correlation scores for all pairs of features in a dataset. These methods can only detect monotonic relationship.
@@ Line 21: / Line 19: @@
-    Correlation measure:
+* Correlation measure:
+** Pairwise Pearson correlation.
-        Pairwise Pearson correlation.
+** Pairwise Spearman correlation.
-        Pairwise Spearman correlation.
+* Filter for finding attribute pairs.
+* A list of attribute pairs with correlation coefficient. Press Finished to stop computation for large datasets.
-    Filter for finding attribute pairs.
+* Access widget help and produce report.
 ==Contoh==