WEBVTT 00:00.650 --> 00:05.290 In this video we learn how to change column labels of our data frame. 00:05.360 --> 00:12.200 So first of all let's import Parnassus always and we import our Titanic data set and we have a look 00:12.200 --> 00:16.010 at the first five rows and the last five rows. 00:16.730 --> 00:19.210 And then we can never look at our column labels. 00:19.220 --> 00:30.350 That's the attribute topped columns so it's survived PE class 6 8 cents on so same as here above and 00:30.350 --> 00:38.900 we can also index our column index object for example for the first element so the first element at 00:38.990 --> 00:42.150 index position 0 it's survived. 00:42.770 --> 00:46.060 And now let's assume that we are not happy with them the rod survived. 00:46.070 --> 00:48.760 So we would like to change it to a. 00:48.770 --> 00:57.350 For example and we can try to do so by setting a life as the new value so let's try this out. 00:57.560 --> 01:04.700 And here we get an error message index does not support mutable operations so same with row index objects. 01:04.700 --> 01:11.150 Also column index objects are immutable so we can only change them the whole index by passing a list 01:11.150 --> 01:13.450 or a sequence with new values. 01:13.490 --> 01:17.480 The tests are actually the same amount of elements in our index. 01:17.540 --> 01:24.100 So in our example here we have nine elements and we can pass a list with nine elements. 01:24.120 --> 01:28.410 So for example we can say that our column labels should be alive. 01:28.410 --> 01:31.530 Class 6 8 the S P. 01:31.590 --> 01:39.440 Parents and children fare embarked and tech so for each column label we pass here a new column label 01:41.260 --> 01:45.790 and let's try this out and let's have a look at the first five rows. 01:46.480 --> 01:50.390 So now we can see here we have changed all column labels so we have here. 01:50.770 --> 01:52.810 Class sex and so on. 01:54.300 --> 01:57.610 And we can also set a name for our column index object. 01:57.630 --> 01:59.400 So this that the attribute name. 02:00.300 --> 02:03.750 And so far we do not have a name for our index object. 02:03.750 --> 02:06.440 So we get nothing here but we can change some. 02:06.460 --> 02:15.440 This for example to a peasant like characteristics so now let's see again here and there can see here 02:15.930 --> 02:18.300 we have a name now for our column label. 02:18.300 --> 02:25.060 So these are the peasant characteristics and we can also set a name for our row and next. 02:25.090 --> 02:26.370 So let's try this out. 02:30.090 --> 02:36.570 So with the DOT index start name and so far we do not have a name that we can change this to. 02:36.570 --> 02:37.620 For example 02:40.320 --> 02:44.190 passenger numbers are starting from zero to eight hundred ninety one 02:49.020 --> 02:52.830 and let's check again here the first five rows. 02:52.880 --> 02:58.160 So now we have here a name for our column labels or passenger characteristics and we have a name for 02:58.160 --> 03:01.070 our row index passenger number. 03:01.070 --> 03:01.460 All right. 03:01.460 --> 03:07.450 So now in this video in the last video we learned how to change the complete row in next column index. 03:07.460 --> 03:11.290 And we learned that an index objects in general immutable. 03:11.960 --> 03:17.360 But there is an option to change single entries of our index objects and in the next video we learn 03:17.360 --> 03:19.640 how to do this so I hope to see you there by.