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[DOCX File]Max Marks: 70Time: 3 hrs - Python Class Room Diary
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CLASS XII. INFORMATICS PRACTICES NEW (065) I PREBOARD (2019-20) Max Marks: 70Time: 3 hrs. General Instructions: All questions are compulsory. Question Paper is …
pandas set new index

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Plot the image inside python using the following command. io.imshow(image) Turn-in: A screen capture of the image being plotted inside python. (2 pts) Next, let’s convert the image to grey-scale using the following. image = color.rgb2gray(image) Turn-in: A screen capture of the grey-scale image being plotted inside python. (2 pts)
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(ii)Write the python code to read the contents of “first.csv” file consisting of data from a mysql table and print data of table on the screen in tabular form of table. Ans.import mysql.connector Mydb=mysql.connector.connect(host=”localhost”,user=”root”,passwd=”123”,
create dataframe with index

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Write a python code to create a dataframe with appropriate headings such as x,y . ... Write the command using Insert() function to add a new column in the last place(3rd place) named “Salary” from the list Sal=[10000,15000,20000] in an existing data frame named EMP already having 2 columns. ... Write the code to find mean value from above ...
pandas dataframe create new index

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trainingSet = pd.DataFrame(clickData) trainingSet. Step 2: Keep index and columns. Keep index: keptIndex=trainingSet.index. keptIndex. Keep columns: keptColumns=trainingSet.columns. keptColumns. Step 3: Perform data cleaning. Create simple imputer in order to clean data: imputer = SimpleImputer(strategy="median") imputer.fit(trainingSet)
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How to load and save .csv files, series and dataframe variable types . Pandas is one of the most popular Python libraries for Data Science and Analytics. In this pandas worksheet series, you will learn the most important (that is, the most often used) things that you have to know as an Analyst or a Data Scientist.
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Q.4 Why does python change the datatype of a column as soon as it stores an empty value(NaN) even though it has all other values stored as integer. Q.5 Write code statements to list the following, from a dataframe namely sales.
python dataframe set index

Easy and quick approach to develop complex pivot table ...
Convert each of the dtype to multi-index dataframe as below. The new dataframes should align with the dataframe (2) indexes/levels. Get the index values for each of the levels and then form a tuple using zip method. Pass the tuple list to MultiIndex.from_tuples pandas method and build the index/dataframes
python pandas set index

[DOCX File]INFORMATICS PRACTICES NEW (065) - CLASS XII
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Write python statement to create a one –dimensional array using arrange() function .Elements will be in the range 10 to 30 with a step of 4 (including both 10 and 30). Reshape this one-dimensional array to two dimensional array of shape(2,3). Then display only those elements of this two –dimensional array which are divisible by 5.
pandas set new index

Python dataframe create new index