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Intro to Excel Spreadsheets

Nancy Clark

FSU College of Medicine

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What are they used for?

Financial forecasting Statistical analysis Data collection Data manipulation Summarizing data Communicating data

Budgets Research Gradebook Charts Big tables Job aids

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Spreadsheet Construction

Columns (letters) Rows (numbers) Worksheets Cells (E9)

Cell Addre

ss

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Mousing Around a Cell

Highlight/SelectMove ContentsFill Contents

Mon Tue

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Cell Formats

Words Numbers

# decimal places $ %

Days/Dates Formulas Calculations…

45.271945.3$45.27.271927%5-Mar-025-Mar3/5/2002STUDENT

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Formulas

=A2+B2+C2 =SUM(A2:AS2)

$29.00 $1,886.00

Formula

Results

AutoSum

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Formulas

=Today() Average(range) Count(range) Max(range) IF(logical_test,value_if_true,value_if_false)

=IF(F3>89,"A",IF(F3>79,"B",IF(F3>69,"C","F")))

Formulas can be Filled Down

Insert menu, Function…, Help on this function

Column (C2:C80)

Row (B2:AK2)

Block (A2:G50)

=SUMFunction Range

(A2:AS2)

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More on Cell Formats

Alignment Word wrap Orientation Shrink to fit Font

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More on Cell Formats

Width

Height

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Merging and Splitting

Add to Formating Toolbar Highlight cells to merge Click Merge Button Unmerge

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Copying and Pasting

Highlight cells Hit Copy (CTRL-C) Dotted lines Click on target cell

Top of area Hit Paste (CTRL-V) Unless still dotted not

in Clipboard CTRL to select multiple

targets

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Worksheets

Open U:\Nancy Clark\Spreadsheets\Handbase Pt

Encounters.xls

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Sorting Data

Entire worksheet of tabular data with headingsData menu, Sort…

Small section of worksheetHighlight sectionHit sort button

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Formulas that Reference Other Worksheets

=COUNT(Allison!B2:Allison!B100)Allison!B2 -- cell B2 on sheet Allison

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Copying Worksheets

Edit menu Move or copy sheet…

1

2

3

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Adding and Deleting Sheets

To add a sheet Insert menu

Worksheet

To delete a sheet Edit menu

Delete sheet

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Page Setup (Format)

Landscape or Portrait Print to 1 page wide Margins Headers and Footers Print Titles

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Making Sheets Pretty

Do it yourself methodFill ColorFont ColorsBorders toolbar

Autoformat (Format) Conditional Formatting

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Charts

Visual representations of data

Select Data Insert menu,

Chart…

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Charts – Step 1

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Charts – Step 2

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Charts – Step 3

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Charts – Step 4

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Charts – Final

Patients by Age Group

0%

5% 5%

74%

16% 0 - 3 wks

1 mo - 10 yrs

11 - 24 yrs

25 - 64 yrs

65 yrs+

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Different Scales

Score on Survey

% Not Installed

PDxMD 4.76 8

InfoRetriever 4.80 7

ePocrates 4.87 8

Stedmans 4.65 9

CP Onhand 4.45 22

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PDA Software

0

5

10

15

20

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PDxMD InfoRetriever ePocrates Stedmans CP Onhand

Score on Survey

% Not Installed

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Printing

Always Print Preview Page Setup Select Print Area

Highlight area File, Set Print Area File, Clear Print Area

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Insert Excel Spreadsheets

Copy and Paste Use Insert Microsoft Excel Worksheet

button Double click on table or chart Calls up Excel

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Suggestion for Spreadsheet

Summarize your patient data No data? Do the composite. Do a chart of some part of the data Put the data sheet in as well 3 sheets:

DataSummaryChart

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Statistical Analysis

Using Excel

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Descriptive Statistics

Distribution frequency

distribution Histogram

Central tendency Mean Median mode

Dispersion Range Standard deviation Variance

N Not P (inferential

stats)

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Central Tendency

Mean =AVERAGE(b2:b1500)

Median =MEDIAN(A2:A7)

Mode =MODE(A2:A7)

N =COUNT(A2:A1500) =COUNTBLANK(A2:B5)

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Dispersion

Range=MAX(A2:A60)- MIN(A2:A60)

Standard deviation=STDEV(A2:A110)

Variance=VAR(A2:A110)

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Distribution

Frequency distributionNot easy – use SPSSFREQUENCY(data_array,bins_array)Use help

HistogramBar chart of frequency table

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Data Tables

Field names at top Each row is a record (sample) Sorting whole table

By one columnBy more than one column

Sorting individual sections

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Hands on experience

Analyze data in examples.xls

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Sensitivity, Specificity

sensitivity =

a / (a+c) specificity =

d / (b+d)

Patients with disease

Patients without disease

Test is positive a bTest is negative c d