Re: Please add me to this group
- To: mathgroup at smc.vnet.net
- Subject: [mg117060] Re: Please add me to this group
- From: Albert Retey <awnl at gmx-topmail.de>
- Date: Wed, 9 Mar 2011 06:56:03 -0500 (EST)
- References: <AD5346C5-1CE7-4C46-A163-9C2FA305E5C0@BELLSOUTH.NET> <4D71F9E6.8030506@gmail.com> <il52cg$nqv$1@smc.vnet.net>
Hi, > As a new user of Mathematica and as a purchaser of the Home Edition, > which does not include any support, I am trying to figure out how to > take data from an Excel spreadsheet into Mathematica to analyze and > graph. > > I have taken a couple of free seminars on line, but I have not been able > to figure out how to do just a few basic statistical things. Each > column in my spreadsheet is a variable. In order to produce a histogram > of one of those variables, I had to open the spreadsheet in Excel, copy > the column, then paste it into the curly braces inside the Histogram > function, then eliminate the carriage returns manually while inserting > commas manually in order to produce the Histogram. Surely there must be > a faster way. The usual way to handle this is to Import the data from the excel file: data=Import[yourexcelfile] which will import all sheets within the file. It is possible to restrict the import to only e.g. one sheet, too. Once you have imported the data you'd use Part or some other functions to extract the data you want to analyze. > In the first place, I cannot tell where to place the Excel file so that > Mathematica knows where it is. Anything you could do to get me started > would be much appreciated. you would give it the full path to the file, as you would do for any other program (something like C:\mystuff\myfile.xls on windows or /home/me/myfile.xls on the other supported systems). The easiest way to get that string is by Insert -> File Path, which opens a system specific file open dialog which lets you choose the file in the usual way and inserts the file name as a string at the current cursor point. hth, albert