We can do it using xlrd library. We don't need to import entire pandas. Here is below utility function, taken from Link. book = xlrd.open_workbook(excel_path) sheet = book.sheet_by_index(sheet_no) return numpy.array([list(map(lambda x : x.value, sheet.row(i))) for i in range(sheet.nrows)])

Apr 2, 2016 · I am trying to import an excel file using pandas and convert it to a numpy.ndarray using as_matrix() function of pandas. But it seams to read my file wrong. Like I have a 90x1049 data set in Excel file. But when i am trying to convert it into numpy array it reads my data as 89x1049. I am using the following code, which is not working:

Jan 26, 2017 · import pandas as pd ## convert your array into a dataframe df = pd.DataFrame (array) ## save to xlsx file filepath = 'my_excel_file.xlsx' df.to_excel(filepath, index=False) hope it helps!

Nov 19, 2018 · if row_dts[i] == col_dts[i]: # same dtype... send to array: ar = np.asarray(c) if row_dts[i] == 'f': # float? if so, substitute np.nan: ar = np.array([isfloat(i) for i in c]) is_nan = np.isnan(ar) # find the nan values, then check: not_nan = ar[~is_nan] # are the floats == ints?

3 days ago · Write a Numpy program to read data from an Excel file into a DataFrame and then convert it to a NumPy array with preserved data types. Write a Numpy program to export a numeric array to an Excel file using Pandas and then read back specific columns for analysis.

data = sheet_to_array(filename, SHEET) print data # subset: data = sheet_to_array(filename, SHEET, FIRST, LAST, True) print data # faulty inputs: #data = sheet_to_array('foo', SHEET, FIRST, LAST, HEADER) #print data: #data = sheet_to_array(filename, 999, FIRST, LAST, HEADER) #print data: #data = sheet_to_array(filename, SHEET, LAST, FIRST ...

You can use the pandas library to read Excel data and convert it into a numpy array. Here is an example code: import pandas as pd import numpy as np # 读取Excel文件 df = pd.read_excel( 'data.xlsx' ) # 将数据转换为numpy数组 data = df.to_numpy()

Jun 21, 2024 · Learn about the NumPy functions np.repeat, np.squeeze and np.vstack in this Python in Excel challenge.

Jun 10, 2024 · excel_data.to_numpy() converts the DataFrame to a NumPy array. excel_output.to_excel('output.xlsx', index=False, header=False) writes the array to an Excel file without the index and...

Jun 8, 2015 · Just copy and paste the relevant cells from the excel file into a multiline string and use the convert() function. import numpy as np from tableconvert.converter import convert array = convert(""" 123 456 3.14159 SOMETEXT 2,71828 0 """) print(type(array)) print(array)