Lecture 7 - Cadkey 1

Fundamentals of Engineering – Honors – ENGR H191Question of the Day (and More!)

The first book of riddles published in English appeared in 1511 – one of the riddles was this: “What thing is it, the less it is the

more it is dread?”ANSWER:

“A Bridge”The information from this slide and the next 2 was obtained from

‘To Engineer Is Human’ by Henry Petroski.

Lecture 7 - Cadkey 2

Fundamentals of Engineering – Honors – ENGR H191Question of the Day – Round 2

The Brooklyn Bridge, opened in May 1883, was called the “Eighth Wonder of the World” – who was the main engineer to oversee the construction of the Brooklyn Bridge?ANSWER: Washington Roebling

(His father began the project but died soon after it was started)

Lecture 7 - Cadkey 3

Fundamentals of Engineering – Honors – ENGR H191

Picture of Brooklyn Bridge

W.A. Roebling. Engr in Chief

Lecture 7 - Cadkey 4

Fundamentals of Engineering – Honors – ENGR H191Question of the Day – Round 3

Where is this bridge – also designed by Washington Roebling – located?ANSWER: Cincinnati, OH!

Lecture 7 - Cadkey 5

Fundamentals of Engineering – Honors – ENGR H191

Topics For Today

Today – Graphs using Excel

Wednesday/Thursday – Missing Lines and Views and Drawing 3 Views with CADKEY

Thursday/Wednesday – Hands-on Lab:

Spot Speed Check – Traffic Engineering

Lecture 7 - Cadkey 6

Fundamentals of Engineering – Honors – ENGR H191

Graphs and GraphingTypes of graphs bar charts, pie charts, scatter plots

Characteristics of good graphs titles, axis labels, ticks, legends plotting experimental and calculated

values

Tabulating and graphing data in Excel and editing for good presentation

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Fundamentals of Engineering – Honors – ENGR H191

Types of Data

Data values can be either numeric or character

Division Year Expenses R&D 1995 $45,700Purchasing 1995 $152,090R&D 1997 $66,330Purchasing 1997 $263,480

Numeric data may be either continuous orcategorical

Character data are categorical

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Fundamentals of Engineering – Honors – ENGR H191

Types of Graphs

Scatter plots are used when all variables being plotted are numeric and continuousBar charts and pie charts are examples of graph types in which at least one of the variables is categorical

Lecture 7 - Cadkey 9

Fundamentals of Engineering – Honors – ENGR H191

270 college students were surveyed to find whether they had part-time jobs and how much they earned. Results:

How can we present these data graphically?

# of studentsmonthly earningmen women

$0 (no job) 44 45less than $200 20 18$200 - $399 34 33

$400 or more 37 39

Example: College students with jobs

Lecture 7 - Cadkey 10

Fundamentals of Engineering – Honors – ENGR H191

Microsoft Excel - XP

menu menu barbar

customizablecustomizabletoolbarstoolbars

Help!Help!

currently active cell(s)currently active cell(s)

fill handlefill handleformula barformula bar

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph

Enter DataEnter Data

Use EquationsUse Equations

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph Click the Graph ButtonClick the Graph Button

Select Select DataData

Choose Choose Graph Graph TypeType

NextNext

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph

More More OptionsOptions

NextNext

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph

NextNext

Enter Enter TitlesTitles

More More OptionsOptions

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph

FinishFinish

Select Select LocationLocation

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Fundamentals of Engineering – Honors – ENGR H191

Creating A Graph

Resize Resize Graph As Graph As NeededNeeded

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Fundamentals of Engineering – Honors – ENGR H191

Vertical Bar Chart

COLLEGE PAY DISTRIBUTION

0

10

20

30

40

50

$0 LESS THAN$200

$200 - $399 $400 ORMORE

MONTHLY EARNINGS ($/MO)

# S

TU

DE

NT

S

MEN

WOMEN

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Fundamentals of Engineering – Honors – ENGR H191

COLLEGE PAY DISTRIBUTION

0 10 20 30 40 50

$0

LESS THAN $200

$200 - $399

$400 OR MORE

MONTHLY EARNINGS

($/MO)

# STUDENTS

WOMENMEN

Horizontal Bar Chart

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Fundamentals of Engineering – Honors – ENGR H191

Pie Chart

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Fundamentals of Engineering – Honors – ENGR H191

Scatter Plot

Motor Speed At Startup

0

500

1000

1500

2000

2500

3000

3500

0 5 10 15Time (sec)

Sp

eed

(rp

m)

Time (sec) Speed (rpm)

1 1210

2 1866

3 2301

4 2564

5 2742

6 2881

7 2879

8 2915

9 3010

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Fundamentals of Engineering – Honors – ENGR H191

Use your imagination!

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Fundamentals of Engineering – Honors – ENGR H191

Editing Excel Graphs

Once a graph has been created by Excel you may need to edit a legend, title, label, etc. Place the cursor over the item to be edited and press the right mouse button and a menu will appear (Format or Clear) Choosing Format should allow you to edit the graph feature.

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Fundamentals of Engineering – Honors – ENGR H191

Today’s Assignment

Dwg 13 – G69 Surface Chart with EXCEL Due at end of class today

Dwg 14 – G71 Pie Chart with EXCEL Due at beginning of next lecture