Earthquake Questions

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This exercise is for collaborative work during class. Do not fill out early!

Consider converting the earthquake string input into the correct format.

From:

estr = "1.3%earthquake$81km SSW of Kobuk, Alaska"

To:

newstr = "earthquake, 1.3, 81km SSW of Kobuk, Alaska"

Consider the following:

A.
pos = estr.find("%")
pos2 = estr.find("$")
newstr = estr[pos:pos2] + ", " + estr[:pos] + ", " + estr[pos2:]

B.
pos = estr.find("%")
pos2 = estr.find("$")
newstr = estr[pos+1:pos2] + ", " + estr[:pos] + ", " + estr[pos2+1:]

C.
alist = estr.split("$")
blist = alist[0].split("%")
newstr = blist[1] + ", " + blist[0] + ", " + alist[1]

D.
alist = estr.split("$")
blist = estr.split("%")
newstr = blist[1] + ", " + blist[0] + ", " + alist[1]

Which of the following are ways to create newstr from estr?

Option A

Option B

Option C

Option D

Consider building a list of earthquake strings. How does one add a string to a list

ans = [ ]
for item in listOfEarthquakes:
if "check some condition is true":
LINE 4
return ans

Which of the following work for line 4 to add the earthquake to the list of earthquakes that meet the criteria?

ans = ans + item

ans += [item]

ans.append(item)

ans.append( [item] )

Suppose the Earthquake data also had the longitude and latitude for each earthquake and you want to print out a specified number of earthquakes closest to a particular location (given a longitude and latitude location).

What type of function would be better to write? *

Write the function PrintQuakesNear with parameters longitude and latitude, the number of earthquakes to print, and a list of earthquakes. This function would calculate the set of earthquakes and print them.

Write the function QuakesNear with parameters longitude and latitude, and a list of earthquakes. This function would calculate the set of earthquakes and return the list of earthquakes. Then call printQuakes to print them.

Write the two functions. The first is PrintQuakesNearLatitude with parameters latitude, the number of earthquakes to print, and a list of earthquakes. This function would calculate the set of earthquakes close to the latitude and print them. Write a similar PrintQuakesNearLongitude that prints the earthquakes close to the longitude.

Write the two functions. The first is QuakesNearLatitude with parameters latitude, and a list of earthquakes. This function would calculate the set of earthquakes close to the latitude and return them. Write a similar QuakesNearLongitude that returns the earthquakes close to the longitude. Use the two functions to calculate the earthquakes close to a location and then print the quakes with printQuakes.

Names and Netids below

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netid *

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