@ -1,6 +1,7 @@
import unittest
import sea_level_predictor
import matplotlib as mpl
import numpy as np
# the test case
@ -26,15 +27,15 @@ class LinePlotTestCase(unittest.TestCase):
def test_plot_data_points ( self ) :
actual = self . ax . get_children ( ) [ 0 ] . get_offsets ( ) . data . tolist ( )
expected = [ [ 1880.0 , 0.0 ] , [ 1881.0 , 0.220472441 00000002 ] , [ 1882.0 , - 0.440944881 ] , [ 1883.0 , - 0.232283464 ] , [ 1884.0 , 0.590551181 ] , [ 1885.0 , 0.531496062 ] , [ 1886.0 , 0.43700787 399999996 ] , [ 1887.0 , 0.216535433 ] , [ 1888.0 , 0.299212598 ] , [ 1889.0 , 0.362204724 ] , [ 1890.0 , 0.440944881 ] , [ 1891.0 , 0.374015748 ] , [ 1892.0 , 0.499999999 ] , [ 1893.0 , 0.685039369 0000001 ] , [ 1894.0 , 0.303149606 ] , [ 1895.0 , 0.767716535 ] , [ 1896.0 , 0.468503937 00000004 ] , [ 1897.0 , 0.67322834 59999999 ] , [ 1898.0 , 1.043307086 ] , [ 1899.0 , 1.338582676 ] , [ 1900.0 , 1.125984251 ] , [ 1901.0 , 1.110236219 0000001 ] , [ 1902.0 , 1.291338581 ] , [ 1903.0 , 1.60629921 09999998 ] , [ 1904.0 , 1.2007874 ] , [ 1905.0 , 0.98425196 79999999 ] , [ 1906.0 , 1.251968503 ] , [ 1907.0 , 1.196850392 ] , [ 1908.0 , 1.098425196 ] , [ 1909.0 , 1.27559055 ] , [ 1910.0 , 1.271653542 0000001 ] , [ 1911.0 , 1.598425195 ] , [ 1912.0 , 1.476377951 ] , [ 1913.0 , 1.547244093 0000002 ] , [ 1914.0 , 1.795275589 ] , [ 1915.0 , 2.10629921 ] , [ 1916.0 , 2.031496061 ] , [ 1917.0 , 1.854330707 ] , [ 1918.0 , 1.791338581 ] , [ 1919.0 , 1.854330707 ] , [ 1920.0 , 1.905511809 ] , [ 1921.0 , 1.988188974 ] , [ 1922.0 , 1.952755904 ] , [ 1923.0 , 1.999999998 ] , [ 1924.0 , 1.712598423 0000002 ] , [ 1925.0 , 1.791338581 ] , [ 1926.0 , 2.04724409 19999997 ] , [ 1927.0 , 2.003937006 ] , [ 1928.0 , 1.850393699 ] , [ 1929.0 , 1.905511809 ] , [ 1930.0 , 2.062992124 ] , [ 1931.0 , 2.04724409 19999997 ] , [ 1932.0 , 2.271653541 ] , [ 1933.0 , 2.440944879 ] , [ 1934.0 , 2.228346454 ] , [ 1935.0 , 2.448818895 ] , [ 1936.0 , 2.295275588 ] , [ 1937.0 , 2.519685037 ] , [ 1938.0 , 2.62204724 09999998 ] , [ 1939.0 , 2.826771651 ] , [ 1940.0 , 2.618110234 ] , [ 1941.0 , 3.098425194 ] , [ 1942.0 , 3.098425194 ] , [ 1943.0 , 3.098425194 ] , [ 1944.0 , 2.84645669 ] , [ 1945.0 , 2.95669291 ] , [ 1946.0 , 3.251968501 0000003 ] , [ 1947.0 , 3.374015745 ] , [ 1948.0 , 3.562992122 ] , [ 1949.0 , 3.51181102 ] , [ 1950.0 , 3.598425193 ] , [ 1951.0 , 3.972440941 0000003 ] , [ 1952.0 , 3.870078736 0000004 ] , [ 1953.0 , 4.043307082 ] , [ 1954.0 , 3.929133854 ] , [ 1955.0 , 3.964566925 ] , [ 1956.0 , 3.763779524 ] , [ 1957.0 , 4.291338578 ] , [ 1958.0 , 4.346456688 ] , [ 1959.0 , 4.358267712 ] , [ 1960.0 , 4.503937003 ] , [ 1961.0 , 4.748031491 ] , [ 1962.0 , 4.543307082 ] , [ 1963.0 , 4.480314956 ] , [ 1964.0 , 4.16929133 39999995 ] , [ 1965.0 , 4.610236216 0000006 ] , [ 1966.0 , 4.397637791 ] , [ 1967.0 , 4.452755901 000001 ] , [ 1968.0 , 4.48425196 3999999 ] , [ 1969.0 , 4.751968499 ] , [ 1970.0 , 4.67716535 ] , [ 1971.0 , 4.881889759 ] , [ 1972.0 , 5.240157475 ] , [ 1973.0 , 5.003937003 ] , [ 1974.0 , 5.472440939 ] , [ 1975.0 , 5.40944881 2999999 ] , [ 1976.0 , 5.370078735 ] , [ 1977.0 , 5.303149601 ] , [ 1978.0 , 5.555118105 ] , [ 1979.0 , 5.362204719 ] , [ 1980.0 , 5.598425191 0000005 ] , [ 1981.0 , 6.086614167 0000005 ] , [ 1982.0 , 5.858267711 ] , [ 1983.0 , 6.188976372 000001 ] , [ 1984.0 , 6.153543301 ] , [ 1985.0 , 5.74803149 ] , [ 1986.0 , 5.771653537 000001 ] , [ 1987.0 , 5.795275585 ] , [ 1988.0 , 5.980314955 ] , [ 1989.0 , 6.15748030 899999 9] , [ 1990.0 , 6.23228345 79999995 ] , [ 1991.0 , 6.334645663 ] , [ 1992.0 , 6.35826771 ] , [ 1993.0 , 6.291338576 ] , [ 1994.0 , 6.49999999 2999999 ] , [ 1995.0 , 6.618110229 ] , [ 1996.0 , 6.787401568 ] , [ 1997.0 , 7.066929127 000001 ] , [ 1998.0 , 6.665354324 ] , [ 1999.0 , 7.011811016 ] , [ 2000.0 , 7.062992119 ] , [ 2001.0 , 7.287401567 000001 ] , [ 2002.0 , 7.381889756 0000005 ] , [ 2003.0 , 7.759842512 0000005 ] , [ 2004.0 , 7.740157472 000001 ] , [ 2005.0 , 7.74409448 ] , [ 2006.0 , 7.917322827 0000005 ] , [ 2007.0 , 7.996062984 ] , [ 2008.0 , 8.350393692 ] , [ 2009.0 , 8.586614164 ] , [ 2010.0 , 8.901574794 ] , [ 2011.0 , 8.96456692 ] , [ 2012.0 , 9.32677164 3999999 ] , [ 2013.0 , 8.980314951 ] ]
self . assertE qual( actual , expected , " Expected different data points in scatter plot. " )
expected = [ [ 1880.0 , 0.0 ] , [ 1881.0 , 0.220472441 ] , [ 1882.0 , - 0.440944881 ] , [ 1883.0 , - 0.232283464 ] , [ 1884.0 , 0.590551181 ] , [ 1885.0 , 0.531496062 ] , [ 1886.0 , 0.43700787 4 ] , [ 1887.0 , 0.216535433 ] , [ 1888.0 , 0.299212598 ] , [ 1889.0 , 0.362204724 ] , [ 1890.0 , 0.440944881 ] , [ 1891.0 , 0.374015748 ] , [ 1892.0 , 0.499999999 ] , [ 1893.0 , 0.685039369 ] , [ 1894.0 , 0.303149606 ] , [ 1895.0 , 0.767716535 ] , [ 1896.0 , 0.468503937 ] , [ 1897.0 , 0.67322834 6 ] , [ 1898.0 , 1.043307086 ] , [ 1899.0 , 1.338582676 ] , [ 1900.0 , 1.125984251 ] , [ 1901.0 , 1.110236219 ] , [ 1902.0 , 1.291338581 ] , [ 1903.0 , 1.60629921 1 ] , [ 1904.0 , 1.2007874 ] , [ 1905.0 , 0.98425196 8 ] , [ 1906.0 , 1.251968503 ] , [ 1907.0 , 1.196850392 ] , [ 1908.0 , 1.098425196 ] , [ 1909.0 , 1.27559055 ] , [ 1910.0 , 1.271653542 ] , [ 1911.0 , 1.598425195 ] , [ 1912.0 , 1.476377951 ] , [ 1913.0 , 1.547244093 ] , [ 1914.0 , 1.795275589 ] , [ 1915.0 , 2.10629921 ] , [ 1916.0 , 2.031496061 ] , [ 1917.0 , 1.854330707 ] , [ 1918.0 , 1.791338581 ] , [ 1919.0 , 1.854330707 ] , [ 1920.0 , 1.905511809 ] , [ 1921.0 , 1.988188974 ] , [ 1922.0 , 1.952755904 ] , [ 1923.0 , 1.999999998 ] , [ 1924.0 , 1.712598423 ] , [ 1925.0 , 1.791338581 ] , [ 1926.0 , 2.04724409 2 ] , [ 1927.0 , 2.003937006 ] , [ 1928.0 , 1.850393699 ] , [ 1929.0 , 1.905511809 ] , [ 1930.0 , 2.062992124 ] , [ 1931.0 , 2.04724409 2 ] , [ 1932.0 , 2.271653541 ] , [ 1933.0 , 2.440944879 ] , [ 1934.0 , 2.228346454 ] , [ 1935.0 , 2.448818895 ] , [ 1936.0 , 2.295275588 ] , [ 1937.0 , 2.519685037 ] , [ 1938.0 , 2.62204724 1 ] , [ 1939.0 , 2.826771651 ] , [ 1940.0 , 2.618110234 ] , [ 1941.0 , 3.098425194 ] , [ 1942.0 , 3.098425194 ] , [ 1943.0 , 3.098425194 ] , [ 1944.0 , 2.84645669 ] , [ 1945.0 , 2.95669291 ] , [ 1946.0 , 3.251968501 ] , [ 1947.0 , 3.374015745 ] , [ 1948.0 , 3.562992122 ] , [ 1949.0 , 3.51181102 ] , [ 1950.0 , 3.598425193 ] , [ 1951.0 , 3.972440941 ] , [ 1952.0 , 3.870078736 ] , [ 1953.0 , 4.043307082 ] , [ 1954.0 , 3.929133854 ] , [ 1955.0 , 3.964566925 ] , [ 1956.0 , 3.763779524 ] , [ 1957.0 , 4.291338578 ] , [ 1958.0 , 4.346456688 ] , [ 1959.0 , 4.358267712 ] , [ 1960.0 , 4.503937003 ] , [ 1961.0 , 4.748031491 ] , [ 1962.0 , 4.543307082 ] , [ 1963.0 , 4.480314956 ] , [ 1964.0 , 4.16929133 4 ] , [ 1965.0 , 4.610236216 ] , [ 1966.0 , 4.397637791 ] , [ 1967.0 , 4.452755901 ] , [ 1968.0 , 4.48425196 4 ] , [ 1969.0 , 4.751968499 ] , [ 1970.0 , 4.67716535 ] , [ 1971.0 , 4.881889759 ] , [ 1972.0 , 5.240157475 ] , [ 1973.0 , 5.003937003 ] , [ 1974.0 , 5.472440939 ] , [ 1975.0 , 5.40944881 3 ] , [ 1976.0 , 5.370078735 ] , [ 1977.0 , 5.303149601 ] , [ 1978.0 , 5.555118105 ] , [ 1979.0 , 5.362204719 ] , [ 1980.0 , 5.598425191 ] , [ 1981.0 , 6.086614167 ] , [ 1982.0 , 5.858267711 ] , [ 1983.0 , 6.188976372 ] , [ 1984.0 , 6.153543301 ] , [ 1985.0 , 5.74803149 ] , [ 1986.0 , 5.771653537 ] , [ 1987.0 , 5.795275585 ] , [ 1988.0 , 5.980314955 ] , [ 1989.0 , 6.15748030 9] , [ 1990.0 , 6.23228345 8 ] , [ 1991.0 , 6.334645663 ] , [ 1992.0 , 6.35826771 ] , [ 1993.0 , 6.291338576 ] , [ 1994.0 , 6.49999999 3 ] , [ 1995.0 , 6.618110229 ] , [ 1996.0 , 6.787401568 ] , [ 1997.0 , 7.066929127 ] , [ 1998.0 , 6.665354324 ] , [ 1999.0 , 7.011811016 ] , [ 2000.0 , 7.062992119 ] , [ 2001.0 , 7.287401567 ] , [ 2002.0 , 7.381889756 ] , [ 2003.0 , 7.759842512 ] , [ 2004.0 , 7.740157472 ] , [ 2005.0 , 7.74409448 ] , [ 2006.0 , 7.917322827 ] , [ 2007.0 , 7.996062984 ] , [ 2008.0 , 8.350393692 ] , [ 2009.0 , 8.586614164 ] , [ 2010.0 , 8.901574794 ] , [ 2011.0 , 8.96456692 ] , [ 2012.0 , 9.32677164 4 ] , [ 2013.0 , 8.980314951 ] ]
np . testing . assert_almost_e qual( actual , expected , 7 , " Expected different data points in scatter plot. " )
def test_plot_lines ( self ) :
actual = self . ax . get_lines ( ) [ 0 ] . get_ydata ( ) . tolist ( )
expected = [ - 0.5421240249263661 , - 0.4790794409142336 , - 0.41603485690208686 , - 0.3529902728899543 , - 0.2899456888778218 , - 0.22690110486568926 , - 0.16385652085355673 , - 0.1008119368414242 , - 0.037767352829277456 , 0.025277231182855076 , 0.08832181519498761 , 0.15136639920712014 , 0.21441098321925267 , 0.2774555672313852 , 0.34050015124351773 , 0.4035447352556645 , 0.466589319267797 , 0.5296339032799295 , 0.5926784872920621 , 0.6557230713041946 , 0.7187676553163271 , 0.7818122393284739 , 0.8448568233406064 , 0.9079014073527389 , 0.9709459913648715 , 1.033990575377004 , 1.0970351593891365 , 1.1600797434012833 , 1.2231243274134158 , 1.2861689114255483 , 1.3492134954376809 , 1.4122580794498134 , 1.475302663461946 , 1.5383472474740927 , 1.6013918314862252 , 1.6644364154983577 , 1.7274809995104903 , 1.7905255835226228 , 1.8535701675347553 , 1.9166147515468879 , 1.9796593355590346 , 2.042703919571167 , 2.1057485035832997 , 2.168793087595432 , 2.2318376716075647 , 2.2948822556196973 , 2.357926839631844 , 2.4209714236439766 , 2.484016007656109 , 2.5470605916682416 , 2.610105175680374 , 2.6731497596925067 , 2.7361943437046534 , 2.799238927716786 , 2.8622835117289185 , 2.925328095741051 , 2.9883726797531835 , 3.051417263765316 , 3.1144618477774486 , 3.1775064317895954 , 3.240551015801728 , 3.3035955998138604 , 3.366640183825993 , 3.4296847678381255 , 3.492729351850258 , 3.5557739358624048 , 3.6188185198745373 , 3.68186310388667 , 3.7449076878988024 , 3.807952271910935 , 3.8709968559230674 , 3.934041439935214 , 3.9970860239473467 , 4.060130607959479 , 4.123175191971612 , 4.186219775983744 , 4.249264359995877 , 4.312308944008024 , 4.375353528020156 , 4.438398112032289 , 4.501442696044421 , 4.564487280056554 , 4.627531864068686 , 4.690576448080819 , 4.7536210320929655 , 4.816665616105098 , 4.879710200117231 , 4.942754784129363 , 5.005799368141496 , 5.068843952153628 , 5.131888536165775 , 5.194933120177907 , 5.25797770419004 , 5.3210222882021725 , 5.384066872214305 , 5.4471114562264376 , 5.510156040238584 , 5.573200624250717 , 5.636245208262849 , 5.699289792274982 , 5.762334376287114 , 5.825378960299247 , 5.8884235443113795 , 5.951468128323526 , 6.014512712335659 , 6.077557296347791 , 6.140601880359924 , 6.203646464372056 , 6.266691048384189 , 6.329735632396336 , 6.392780216408468 , 6.455824800420601 , 6.518869384432733 , 6.581913968444866 , 6.644958552456998 , 6.708003136469145 , 6.771047720481278 , 6.83409230449341 , 6.897136888505543 , 6.960181472517675 , 7.023226056529808 , 7.086270640541954 , 7.149315224554087 , 7.2123598085662195 , 7.275404392578352 , 7.338448976590485 , 7.401493560602617 , 7.46453814461475 , 7.527582728626896 , 7.590627312639029 , 7.653671896651161 , 7.716716480663294 , 7.7797610646754265 , 7.842805648687559 , 7.905850232699706 , 7.968894816711838 , 8.03193940072397 , 8.094983984736103 , 8.158028568748236 , 8.221073152760368 , 8.284117736772515 , 8.347162320784648 , 8.41020690479678 , 8.473251488808913 , 8.536296072821045 , 8.599340656833178 , 8.66238524084531 , 8.725429824857457 , 8.78847440886959 , 8.851518992881722 , 8.914563576893855 , 8.977608160905987 , 9.040652744918134 , 9.103697328930252 , 9.166741912942399 , 9.229786496954517 , 9.292831080966664 , 9.35587566497881 , 9.41892024899093 , 9.481964833003076 , 9.545009417015194 , 9.608054001027341 , 9.671098585039488 , 9.734143169051606 , 9.797187753063753 , 9.860232337075871 , 9.923276921088018 , 9.986321505100136 , 10.049366089112283 , 10.11241067312443 ]
self . assertE qual( actual , expected , " Expected different line for first line of best fit. " )
expected = [ - 0.5421240249263661 , - 0.4790794409142336 , - 0.41603485690208686 , - 0.3529902728899543 , - 0.2899456888778218 , - 0.22690110486568926 , - 0.16385652085355673 , - 0.1008119368414242 , - 0.037767352829277456 , 0.025277231182855076 , 0.08832181519498761 , 0.15136639920712014 , 0.21441098321925267 , 0.2774555672313852 , 0.34050015124351773 , 0.4035447352556645 , 0.466589319267797 , 0.5296339032799295 , 0.5926784872920621 , 0.6557230713041946 , 0.7187676553163271 , 0.7818122393284739 , 0.8448568233406064 , 0.9079014073527389 , 0.9709459913648715 , 1.033990575377004 , 1.0970351593891365 , 1.1600797434012833 , 1.2231243274134158 , 1.2861689114255483 , 1.3492134954376809 , 1.4122580794498134 , 1.475302663461946 , 1.5383472474740927 , 1.6013918314862252 , 1.6644364154983577 , 1.7274809995104903 , 1.7905255835226228 , 1.8535701675347553 , 1.9166147515468879 , 1.9796593355590346 , 2.042703919571167 , 2.1057485035832997 , 2.168793087595432 , 2.2318376716075647 , 2.2948822556196973 , 2.357926839631844 , 2.4209714236439766 , 2.484016007656109 , 2.5470605916682416 , 2.610105175680374 , 2.6731497596925067 , 2.7361943437046534 , 2.799238927716786 , 2.8622835117289185 , 2.925328095741051 , 2.9883726797531835 , 3.051417263765316 , 3.1144618477774486 , 3.1775064317895954 , 3.240551015801728 , 3.3035955998138604 , 3.366640183825993 , 3.4296847678381255 , 3.492729351850258 , 3.5557739358624048 , 3.6188185198745373 , 3.68186310388667 , 3.7449076878988024 , 3.807952271910935 , 3.8709968559230674 , 3.934041439935214 , 3.9970860239473467 , 4.060130607959479 , 4.123175191971612 , 4.186219775983744 , 4.249264359995877 , 4.312308944008024 , 4.375353528020156 , 4.438398112032289 , 4.501442696044421 , 4.564487280056554 , 4.627531864068686 , 4.690576448080819 , 4.7536210320929655 , 4.816665616105098 , 4.879710200117231 , 4.942754784129363 , 5.005799368141496 , 5.068843952153628 , 5.131888536165775 , 5.194933120177907 , 5.25797770419004 , 5.3210222882021725 , 5.384066872214305 , 5.4471114562264376 , 5.510156040238584 , 5.573200624250717 , 5.636245208262849 , 5.699289792274982 , 5.762334376287114 , 5.825378960299247 , 5.8884235443113795 , 5.951468128323526 , 6.014512712335659 , 6.077557296347791 , 6.140601880359924 , 6.203646464372056 , 6.266691048384189 , 6.329735632396336 , 6.392780216408468 , 6.455824800420601 , 6.518869384432733 , 6.581913968444866 , 6.644958552456998 , 6.708003136469145 , 6.771047720481278 , 6.83409230449341 , 6.897136888505543 , 6.960181472517675 , 7.023226056529808 , 7.086270640541954 , 7.149315224554087 , 7.2123598085662195 , 7.275404392578352 , 7.338448976590485 , 7.401493560602617 , 7.46453814461475 , 7.527582728626896 , 7.590627312639029 , 7.653671896651161 , 7.716716480663294 , 7.7797610646754265 , 7.842805648687559 , 7.905850232699706 , 7.968894816711838 , 8.03193940072397 , 8.094983984736103 , 8.158028568748236 , 8.221073152760368 , 8.284117736772515 , 8.347162320784648 , 8.41020690479678 , 8.473251488808913 , 8.536296072821045 , 8.599340656833178 , 8.66238524084531 , 8.725429824857457 , 8.78847440886959 , 8.851518992881722 , 8.914563576893855 , 8.977608160905987 , 9.040652744918134 , 9.103697328930252 , 9.166741912942399 , 9.229786496954517 , 9.292831080966664 , 9.35587566497881 , 9.41892024899093 , 9.481964833003076 , 9.545009417015194 , 9.608054001027341 , 9.671098585039488 , 9.734143169051606 , 9.797187753063753 , 9.860232337075871 , 9.923276921088018 , 9.986321505100136 , 10.049366089112283 , 10.11241067312443 , 10.175455257136548 ]
np . testing . assert_almost_e qual( actual , expected , 7 , " Expected different line for first line of best fit. " )
actual = self . ax . get_lines ( ) [ 1 ] . get_ydata ( ) . tolist ( )
expected = [ 7.06107985777146 , 7.227507131103323 , 7.393934404435242 , 7.560361677767105 , 7.726788951098968 , 7.89321622443083 , 8.059643497762693 , 8.226070771094555 , 8.392498044426418 , 8.55892531775828 , 8.725352591090143 , 8.891779864422006 , 9.058207137753925 , 9.224634411085788 , 9.39106168441765 , 9.557488957749513 , 9.723916231081375 , 9.890343504413238 , 10.0567707777451 , 10.223198051076963 , 10.389625324408826 , 10.556052597740688 , 10.72247987107255 , 10.88890714440447 , 11.055334417736333 , 11.221761691068195 , 11.388188964400058 , 11.55461623773192 , 11.721043511063783 , 11.887470784395646 , 12.053898057727508 , 12.220325331059371 , 12.386752604391233 , 12.553179877723153 , 12.719607151055015 , 12.886034424386878 , 13.05246169771874 , 13.218888971050603 , 13.385316244382466 , 13.551743517714328 , 13.718170791046191 , 13.884598064378054 , 14.051025337709916 , 14.217452611041836 , 14.383879884373698 , 14.55030715770556 , 14.716734431037423 , 14.883161704369286 , 15.049588977701148 , 15.216016251033011 ]
self . assertE qual( actual , expected , " Expected different line for second line of best fit. " )
expected = [ 7.06107985777146 , 7.227507131103323 , 7.393934404435242 , 7.560361677767105 , 7.726788951098968 , 7.89321622443083 , 8.059643497762693 , 8.226070771094555 , 8.392498044426418 , 8.55892531775828 , 8.725352591090143 , 8.891779864422006 , 9.058207137753925 , 9.224634411085788 , 9.39106168441765 , 9.557488957749513 , 9.723916231081375 , 9.890343504413238 , 10.0567707777451 , 10.223198051076963 , 10.389625324408826 , 10.556052597740688 , 10.72247987107255 , 10.88890714440447 , 11.055334417736333 , 11.221761691068195 , 11.388188964400058 , 11.55461623773192 , 11.721043511063783 , 11.887470784395646 , 12.053898057727508 , 12.220325331059371 , 12.386752604391233 , 12.553179877723153 , 12.719607151055015 , 12.886034424386878 , 13.05246169771874 , 13.218888971050603 , 13.385316244382466 , 13.551743517714328 , 13.718170791046191 , 13.884598064378054 , 14.051025337709916 , 14.217452611041836 , 14.383879884373698 , 14.55030715770556 , 14.716734431037423 , 14.883161704369286 , 15.049588977701148 , 15.216016251033011 , 15.382443524364874 ]
np . testing . assert_almost_e qual( actual , expected , 7 , " Expected different line for second line of best fit. " )
if __name__ == " __main__ " :
unittest . main ( )