﻿ how to interpret lift curve

# how to interpret lift curve

### Cumulative Gains and Lift Curves: Measuring the ...

Sep 18, 2018· Ideally, we want the lift curve to extend as high as possible into the top-left corner of the figure, indicating that we have a large lift associated with contacting a small proportion of customers. Figure 3: Lift Curve showing the "lift" associated with mailing increasing percentages of the total customer base, in terms of the ratio of the ...

### Understand Gain and Lift Charts - ListenData

The Cum Lift of 4.03 for top two deciles, means that when selecting 20% of the records based on the model, one can expect 4.03 times the total number of targets (events) found by randomly selecting 20%-of-file without a model. Gain and Lift Chart: Excel Template : Gain and Lift Charts.

### Understanding And Interpreting Gain And Lift Charts

Jul 15, 2012· Lift and Gain Charts are a useful way of visualizing how good a predictive model is. In SPSS, a typical gain chart appears as follows: In today's post, we will attempt to understand the logic behind generating a gain chart and then discuss how gain and lift charts are interpreted.

### Using Lift (Accuracy/Gains) Charts to Evaluate Data Mining ...

Apr 20, 2011· Lift Charts are used to evaluate & compare the strength of predictive models. This tutorial uses a lift chart to compare a Neural Network & a Decision Tree model created in a previous video (http ...

### Normar Cranes - How to Read and Interpret Charts

Static curves express the positions at which the lifting moment limiting device is triggered, so that the points in the curves are only reached by load extension (translation) and not by lifting! Indicating a static curve its possible to show values 10% higher than what the same crane model can actually lift in dynamic conditions.

### Lift Curve - JMP

Figure 4.19 provides a table of values to demonstrate the calculation of Lift and Portion used for the High lift curve shown in Figure 4.18.A partition model with five splits was built to predict the response, Y Binary. Y Binary has two levels: Low and High. The lift curve is based on 309 observations. There are 83 observed High responses for an overall rate of 0.27.

### Lift measure in data mining - Cross Validated

Lift is nothing but the ratio of Confidence to Expected Confidence. In the area of association rules - "A lift ratio larger than 1.0 implies that the relationship between the antecedent and the consequent is more significant than would be expected if the two sets were independent. The larger the lift ratio, the more significant the association."

### cart - R - Lift chart analysis & classification tree ...

I am trying to compare several models of classification tree using the ROCR package however, the x-axis in this package correspond to the rate of positive prediction whereas in every blog/forum where I searched it corresponds to the population%.. Therefore I don't have any idea how to interpret the curves I have. You can find below the code I wrote for each model and the plots :

### Lift Charts - University of Regina

Let me see if i can explain it simply using an example Lets say you have a customer base of 1000 customers spread out in various areas of equal sizes Area 1 to Area 10, of which around 400 customers are likely the target of a new product you are l...

### Lift Analysis – A Data Scientist's Secret Weapon

Lift analysis, however, is used for classification tasks. Therefore, the remainder of this article will concentrate on these kind of models. The Reason Behind Lift Charts. When evaluating machine learning models there is a plethora of possible metrics to assess performance. There are things like accuracy, precision-recall, ROC curve and so on.

### Lift Charts - University of Notre Dame

Lift Charts . The lift curve is a popular technique in direct marketing. One useful way to think of a lift curve is to consider a data mining model that attempts to identify the likely responders to a mailing by assigning each case a "probability of responding" score.

### Excel at Data Mining – Your First Lift Chart | StatSlice ...

Read below if you are unable to view the video walkthrough. Step 1: Creating the Logistic Regression Model. First, we go to the DATA MINING tab, the Data Modeling group, and select the Advanced drop down.From here select Create Mining Structure to open the Mining Structure Wizard.Click Next to get past the title screen on the wizard.From the drop down, select 'Source Data'!'Source Data'.

### How do I... Read Polar Diagrams?

For a given lift coefficient of 0.89, we read a drag coefficient of 17.5 / 10³ or 0.0175 from the graph. To find the best glide ratio, you have to draw a line from the origin (Cl=0/Cd=0) tangentially to the curve. Read the values of Cl and Cd at the point where the line touches the curve …

### How to interpret this lift chart - Quora

Oct 13, 2015· The (accumulated) lift curve shows the ratio of sampled target to baseline target share among the x percent of observations ordered by model score. Example: Your lift curve shows a 3.3 lift at the 20% mark. In a scenario where you for instance ha...

### Actuarial Review - May 2013 - Exploring Model Lift: Is ...

While quantile plots and double lift charts are easy to understand and interpret, they are also subjective. The Gini index, though it is more complex, has the benefit of boiling lift down to a single number. The Gini index, named for Corrado Gini, is commonly used in …

### Cumulative Gains and Lift Charts - IBM

The lift chart is derived from the cumulative gains chart; the values on the y axis correspond to the ratio of the cumulative gain for each curve to the baseline. Thus, the lift at 10% for the category Yes is 30%/10% = 3.0. It provides another way of looking at the information in the cumulative gains chart.

### Understanding And Interpreting Gain And Lift Charts - Data ...

Sep 11, 2012· Lift and Gain Charts are a useful way of visualizing how good a predictive model is. In SPSS, a typical gain chart appears as follows: In today's post, we will attempt to understand the logic behind generating a gain chart and then discuss how gain and lift charts are interpreted.

### Lift and Drag curves for the Wing - Lets-Go-Fly

2 * .125 Read .125 from the C D curve at 12 o Angle of Attack = 261 lbs L/D CURVE The ratio of Lift to Drag is a very important parameter for any airplane. In this example the maximum value is at 6 o Angle of Attack and has a value of 13. At this point the C

### R Function : Gain and Lift Table

Interpretation of Cumulative Lift The Cumulative Lift of 3.4 for top two deciles, means that when selecting 20% of the records based on the model, one can expect 3.4 times the total number of targets (events) found by randomly selecting 20%-of-records without a model. In terms of customer attrition (churn) model, we can say we can cover 3.4 ...

### Performance Curves and NPSH Tests | Pumps & Systems

Dec 17, 2011· Although most published curves do not show the increased NPSHR at low flows, all centrifugal pumps exhibit such a characteristic. The NPSHR always rises as the pump capacity approaches shut‑off (zero flow rate). Figure 2 is a typical published performance curve. In this example, the NPSH curve is shown as a single line.

### Interpreting the lift curve | Python

Here is an example of Interpreting the lift curve: Below are given the lift curves of two models that predict which donors are most likely to donate for a certain campaign.

### Lift-Curve Slope - an overview | ScienceDirect Topics

Anthony F Molland, Stephen R Turnock, in Marine Rudders and Control Surfaces, 2007. 9.1.4.2 Lift and drag. Lift curve slope, stall angle and maximum lift for a given fin aspect ratio and incidence can be derived from the database described in Section 5.3.Data are available for the various section types in Figures 5.9–5.19 Figure 5.9 Figure 5.10 Figure 5.11 Figure 5.12 Figure 5.13 Figure 5.14 ...

### How to Read a Pump Curve | Intro to Pumps

How to Read a Pump Curve. Years ago, making a pump selection meant sitting down with large printed catalogs and flipping through them until you reached a pump curve that fit a project's hydraulic requirements. Today this process is made much easier through the use of electronic pump curve …

### Interpreting tcpo2 curves and results - SlideShare

Jul 30, 2015· Interpreting tcpo2 curves and results 1. Interpreting Curves and Results PeriFlux 6000 | tcpO2 made intelligent 2. Disclaimer The information contained in this document is intended to provide general information only. It is not intended to be, nor does it constitute, medical advice.