Re: excel vs matlab two programs that are good at what they do i use excel on a regular basis, and when it comes to quickly summing, averaging, and doing simple manipulation on smaller sets of data, i wouldn't use much else. While i`m 100% sure that computations in excel are good (comparing to market data), it seems that matlab is producing some differences (ie -4,18-05e) matlab algorithm looks fine i was wondering - maybe it is because matlab is rounding some computations - i heard a little bit about it. The matlab fitted results has a residual of roughly 30% smaller (albeit given the noise in the input y vector, neither is all that great a fit) and clearly follows the gross overall shape more nearly than does the excel result. Overall comparison matlab is faster more powerful more comprehensive excel is ubiquitous familiar to more engineers constrained optimization is much easier. I personally use matlab for any and all data processing (mostly plotting and fitting), but if i need to display results in a nice way i use excel matlab has an excel importing feature that makes it easy to do this.
Comparison of data analysis packages: r, matlab, scipy, excel, sas, spss, stata posted on february 23, 2009 lukas and i were trying to write a succinct comparison of the most popular packages that are typically used for data analysis. In this video, the curve fitting toolbox is explored. A co-worker of mine plotted the data (phi1,alf) below in excel and used the add trendline to fit the data excel returns y = 28142e-35613x and the fit is not very good.
The import tool makes it easy to bring data from an excel spreadsheet into matlab it shows the data both as it exists in excel and how it will be represented in matlab, and recommends the best format for the data in matlab. The course i teach uses microsoft excel and matlab to build problem solving skills suitable for engineers the videos below are used in some of the introductory lessons to make sure all students are prepared to apply these tools to typical engineering problems. The following tables compare general and technical information for a number of statistical analysis packages. Matlab has pretty good excel integration as well, through the actxserver command you can control absolutely everything in excel from matlab with code similar to vba in fact, although i don't know vba, i can often use the excel tools to automatically record macros and then copy and paste the code to matlab.
Matlabdate = x2mdate(exceldatenumber,convention) converts excel ® serial date numbers to matlab ® serial date numbers or datetime format matlab date numbers start with 1 = january 1, 0000 ad, hence there is a difference of 693960 relative to the 1900 date system, or 695422 relative to the 1904 date system. Matlab beginner's guide 0 about matlab matlab is an interactive software which has been used recently in various areas of engineering and scientific applications it is not a computer language in the normal sense but it does most of the work of a computer language. I've build a macro in excel which creates a histogram i've tried it in excel and it works fine because i've to run that macro over multiple excel-files, i've created a m-code.
A co-worker of mine plotted the data (phi1,alf) below in excel and used the add trendline to fit the data excel returns y = 28142e-35613x and the fit is not very good i used the following matlab code to fit the data and of course, the fit is much better as i am trying to explain to my co. A collection of thoughts on excel vs matlab - r herz the important question is not which one is the best they are both very good and they both can be used for most things you need to do. With matlab, you can efficiently explore, analyze, and visualize your data through product demonstrations, you will see how to: -access data from files and excel spreadsheets. The engineer who attempted teaching me matlab used a short script to demonstrate its matrix manipulation prowess matlab (shortened from matrix laboratory) is built from the ground up to do matrix mathematics i wanted to translate his script to vba, to see, 1 if it's possible, and 2 how excel.
Re: mathcad vs matlab in my opinion, mathematica is best for mathematicians if you are going to be doing a lot of number-crunching, particularly if your numbers are ascii strings in a file, and you are doing fairly simple things with them and want something quick, matlab isn't a bad bet. Excel counts the number of data points in each data bin a data point is included in a particular data bin if the number is greater than the lowest bound and equal to or less than the greater bound for the data bin.