Solutions for Data Science

  The CLEAN function Using the CLEAN function removes nonprintable characters text. For example, if the text labels shown in a column are using crazy nonprintable characters that end up showing as solid blocks or goofy symbols, you can use the CLEAN function to clean up this text. The cleaned‐up text can be stored in another column. You can then work with the cleaned text column. The CLEAN function uses the following syntax: CLEAN(text) The text argument is the text string or a reference to the cell holding the text string that you want to clean. For example, to clean the text stored in Cell A1, use the following syntax: CLEAN(A1) The CONCATENATE function The CONCATENATE function combines, or joins, chunks of text into a single text string. The CONCATENATE function uses the following syntax: CONCATENATE(text1,text2,text3,...) The text1, text2, text3, and so on arguments are the chunks of text that you want to combine into a single string. For example, if the city, state, and ZIP co...

  Only numbers - Showing Numbers in visuals  Sometimes, just showing the data as text is the most effective way of conveying information. Single value chart When you just have one number, it’s best to just report it as-is. Plotting a single value graphically (such as with a bar or point) usually isn’t meaningful if there aren’t other values to compare it to. Single value with indicator An indicator compares the single value to a second number. This is often to compare a metric’s value between the current period and the previous period. Bullet chart Chart type comparing a single value to another number, often a benchmark rather than another data point. The single value is shown with a bar’s length, while comparison points are shown as shaded regions or a perpendicular line. Table Compares data points (rows) across multiple different attributes (columns). Usually sorted by an important or prominent attribute to improve utility.

  1. Count No. of Unique Values Use following formula to count no. of unique values - =SUMPRODUCT((A1:A100<>"")/COUNTIF(A1:A100,A1:A100&"")) 2. Count No. of Unique Values Conditionally If you have data like below and you want to find the unique count for Region = “A”, then you can use below Array formula – =SUM(IF(FREQUENCY(IF(A2:A20<>"",IF(A2:A20="A",MATCH(B2:B20,B2:B20,0))),ROW(A 2:A20)-ROW(A2)+1),1)) If you have more number of conditions, the same can be built after A2:A20 = “A”. Note - Array Formula is not entered by pressing ENTER after entering your formula but by pressing CTRL+SHIFT+ENTER. If you are copying and pasting this formula, take F2 after pasting and CTRL+SHIFT+ENTER. This will put { } brackets around the formula which you can see in Formula Bar. If you edit again, you will have to do CTRL+SHIFT+ENTER again. Don't put { } manually. 3. Count Cells Starting (or Ending) with a particular String 1. Say you want to ...

  Split Column In Power Query, a column of text can be split into multiple columns and in a number of different ways to achieve the results you want. By default, the name of the new columns contains the same name as the original column with a suffix of a period (.) and a number that represents each split section from the original column. You can then rename the column. Split Column Types - Click on the link below for details Split a column by delimiter Split a column by number of characters Split a column by positions Split a column by letter case combinations Split a column by digit and non-digit combinations

  Formatting In Excel -  helps you find meaning in the spreadsheet  Spreadsheets are often seen as boring and pure tools of utility, but that doesn't mean that we can't bring some style and formatting to our spreadsheets Formatting helps your user find meaning in the spreadsheet without going through each and every individual cell. Cells with formatting will draw the viewer's attention to the important cells. In Excel, formatting worksheet data is easy. You can use several fast and simple ways to create professional-looking worksheets that display your data effectively. For example, you can use document themes for a uniform look throughout all of your Excel spreadsheets, styles to apply predefined formats, and other manual formatting features to highlight important data. Formatting a Data Raw Data   Using Font, Number tabs as shown in image to do a simple formatting   Formatting a Data with help of formatting tools in Excel  As shown in image , we have Prod...

 Power Bi  Vs  Tableau - Which BI tool to choose Both Power BI and Tableau are almost similar in features with major difference in user interface. Selection of any BI tool depends on below points 1. Cost 2. User Friendly 3. Data Import options  4. Sharing Dashboards 5. Computing Power of Big Data 6. Support in form of  in app tools / Knowledge sharing / Queries solving / Tutorial / Reference materials 7. Software used in a organization, Microsoft apps or G-suite (google). If in an organization Microsoft apps are used then Power BI should be used as a BI tool because it has all the integrations built in to other Microsoft apps. Power BI is a business analytics service provided by Microsoft that can analyze and visualize data, extract insights, and share it across various departments within your organization. While Tableau is a powerful Business Intelligence tool that manages the data flow and turns data into actionable information. It can create a wide range of d...

Formulas & Functions   1.        Formulas A formula is an expression that operates on value in a range of cell or cells.   2.        Functions Functions are predefined formulas in excel which eliminate manual entry of formulas while give them names.   Five Ways to Insert Formula in Excel   1.        Typing formula inside the cell 2.        Using Insert Function in Formulas Tab   3.        Selecting Formulas from one of groups in Formula Tab 4.        Using AutoSum 5.        Recently Used from Formula Tab   Functions There are more than 470 functions in Excel and there are additions addin functions also with help of VBA macros you ca...