Hello dear R-list! I have an alphanumeric matrix (mymat) like this one: (Embedded image moved to file: pic06334.pcx) with 13000 rows (5 columns), I want to extract from it a submatrix following a citeria: col(5)<0.01. I tried with :
sub.mymat <- mymat[as.numeric(mymat[,5])<0.01,] # "as.numeric " because elements are quoted!
but this give a bad result (I filtered mymat with two different spreadsheet obtaining a result very diffrent from that obtained with previous R-line). Some suggestion? Thanks in advance! A.S. ---------------------------- |------------------------------------+------------------------------------| |Alessandro Semeria |Tel. +39 544 536811 | |------------------------------------+------------------------------------| |Models and Simulation Laboratory |Fax. +39 544 538663 | |------------------------------------+------------------------------------| |The Environment Research Center - | | |Montecatini (Edison Group), Via | | |Ciro Menotti 48, |E-mail: asemeria at cramont.it | |48023 Marina di Ravenna (RA), Italy | | |------------------------------------+------------------------------------| -------------- next part -------------- A non-text attachment was scrubbed... Name: pic06334.pcx Type: application/octet-stream Size: 128 bytes Desc: not available Url : https://stat.ethz.ch/pipermail/r-help/attachments/20021213/d35d9c48/pic06334.obj