Hi On Mon, Aug 1, 2011 at 3:14 PM, Jeffrey Spencer <jeffspenc...@gmail.com>wrote:
> Depends where it is contained but another option is and I find it to > typically be faster: > > B = zeros(A.shape) > maximum(A,B,A) > Since maximum(.) can handle broadcasting maximum(A, 0, A) will be even faster. -eat > > > On 08/01/2011 07:31 PM, dileep kunjaai wrote: > > Dear sir, > How can we fill a particular value in the place of number satisfying > certain condition by another number in an array. > > > Example: > A=[[[ 9.42233087e-42 - 4.71116544e-42 0.00000000e+00 ..., > 1.48303127e+01 > 1.31524124e+01 1.14745111e+01] > [ 3.91788793e+00 1.95894396e+00 0.00000000e+00 ..., 1.78252487e+01 > 1.28667984e+01 7.90834856e+00] > [ 7.83592510e+00 -3.91796255e+00 0.00000000e+00 ..., > 2.08202991e+01 > 1.25811749e+01 4.34205008e+00] > ..., > [ -8.51249974e-03 7.00901222e+00 -1.40095119e+01 ..., > 0.00000000e+00 > 0.00000000e+00 0.00000000e+00] > [ 4.26390441e-03 3.51080871e+00 -7.01735353e+00 ..., > 0.00000000e+00 > 0.00000000e+00 0.00000000e+00] > [ 0.00000000e+00 0.00000000e+00 0.00000000e+00 ..., 0.00000000e+00 > 0.00000000e+00 0.00000000e+00]] > > [[ 9.42233087e-42 -4.71116544e-42 0.00000000e+00 ..., > 8.48242474e+00 > 7.97146845e+00 7.46051216e+00] > [ 5.16325808e+00 2.58162904e+00 0.00000000e+00 ..., 8.47719383e+00 > 8.28024673e+00 8.08330059e+00] > [ 1.03267126e+01 5.16335630e+00 0.00000000e+00 ..., 8.47196198e+00 > 8.58903694e+00 8.70611191e+00] > ..., > [ 0.00000000e+00 2.74500012e-01 5.49000025e-01 ..., 0.00000000e+00 > 0.00000000e+00 0.00000000e+00] > [ 0.00000000e+00 1.37496844e-01 -2.74993688e-01 ..., > 0.00000000e+00 > 0.00000000e+00 0.00000000e+00] > [ 0.00000000e+00 0.00000000e+00 0.00000000e+00 ..., 0.00000000e+00 > 0.00000000e+00 0.00000000e+00]] > > [[ 9.42233087e-42 4.71116544e-42 0.00000000e+00 ..., 1.18437748e+01 > 9.72778034e+00 7.61178637e+00] > [ 2.96431869e-01 1.48215935e-01 0.00000000e+00 ..., 1.64031239e+01 > 1.32768812e+01 1.01506386e+01] > [ 5.92875004e-01 2.96437502e-01 0.00000000e+00 ..., 2.09626484e+01 > 1.68261185e+01 1.26895866e+01] > ..., > [ 1.78188753e+00 -8.90943766e-01 0.00000000e+00 ..., > 0.00000000e+00 > 1.27500005e-03 2.55000009e-03] > [ 9.34620261e-01 -4.67310131e-01 0.00000000e+00 ..., > 0.00000000e+00 > 6.38646539e-04 1.27729308e-03] > [ 8.43000039e-02 4.21500020e-02 0.00000000e+00 ..., 0.00000000e+00 > 0.00000000e+00 0.00000000e+00]]] > A contain some negative value i want to change the negative numbers to > '0'. > I used 'masked_where', command but I failed. > > > > Please help me > > -- > DILEEPKUMAR. R > J R F, IIT DELHI > > > > _______________________________________________ > NumPy-Discussion mailing > listNumPy-Discussion@scipy.orghttp://mail.scipy.org/mailman/listinfo/numpy-discussion > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion > >
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