Difference between revisions of "Dynamic Spreadsheet Assignment"

From CSE425S Wiki
Jump to navigation Jump to search
Line 90: Line 90:
 
         (error 'not-yet-implemented))
 
         (error 'not-yet-implemented))
  
<code>('''sum-row''' hockey-spreadsheet)</code> evaluates to <code>'''3524'''</code>
+
<code>('''sum-row''' hockey-spreadsheet 1)</code> evaluates to <code>'''3524'''</code>
 +
 
 +
<code>function-spreadsheet</code>:
 +
<code>{| class="wikitable"
 +
|(+ 1 2)
 +
|(+ 3 4)
 +
|-
 +
|(/ 10 2)
 +
|(sqrt (/ 1 4))
 +
|-
 +
|(sin (/ 3.14159 4))
 +
|10
 +
|}</code>
 +
 
 +
<code>('''sum-row''' function-spreadsheet 0)</code> evaluates to <code>'''10'''</code>
 +
 
 +
<code>('''sum-row''' function-spreadsheet 1)</code> evaluates to <code>'''5 1/2'''</code>
 +
 
 +
<code>('''sum-row''' function-spreadsheet 2)</code> evaluates to <code>'''10.707106312093558'''</code>
  
 
=Test=
 
=Test=
 
{{RacketUnitTest|spreadsheet_test|spreadsheet}}
 
{{RacketUnitTest|spreadsheet_test|spreadsheet}}

Revision as of 14:13, 30 March 2022

Motivation

Code To Use

general

void

number

string

list

Code To Implement

file: src/main/racket/spreadsheet/spreadsheet.rkt Racket-logo.svg
functions: string->cell
csv->spreadsheet
row-count
row-at sheet
sum-row

string->cell

(define (string->cell s)
       (error 'not-yet-implemented))
  • if s is the empty string, evaluate to void
  • if s represents a number, evaluate to that number
  • if s starts with "(" and ends with ")", evaluate to a form suited for eval
  • otherwise, evaluate to s

csv->spreadsheet

(define (csv->spreadsheet matrix)
       (error 'not-yet-implemented))

given a list of lists of strings, evaluate to a list of list of cells using #string->cell and a couple of list higher order functions.

row-count

(define (row-count sheet)
       (error 'not-yet-implemented))

hockey-spreadsheet:

Name Uniform Number Birth Year Games Played Goals Assists
Bobby Orr 4 1948 657 270 645
Wayne Gretzky 99 1961 1487 894 1963
Mario Lemieux 66 1965 915 690 1033

(row-count hockey-spreadsheet) evaluates to 4

row-at

(define (row-at sheet row-index)
       (error 'not-yet-implemented)) 

(row-at hockey-spreadsheet) evaluates to (list "Bobby Orr" 4 1948 657 270 645)

sum-row

(define (sum-row sheet row-index)
       (error 'not-yet-implemented))

(sum-row hockey-spreadsheet 1) evaluates to 3524

function-spreadsheet: {| class="wikitable" |(+ 1 2) |(+ 3 4) |- |(/ 10 2) |(sqrt (/ 1 4)) |- |(sin (/ 3.14159 4)) |10 |}

(sum-row function-spreadsheet 0) evaluates to 10

(sum-row function-spreadsheet 1) evaluates to 5 1/2

(sum-row function-spreadsheet 2) evaluates to 10.707106312093558

Test

file: spreadsheet_test.rkt Racket-logo.svg Test
source folder: src/test/racket/spreadsheet

note: ensure that you have removed all printing to receive credit for any assignment.