03058nas|a2200409 i 4500 20260818084541.0 251198s1989 th uzm rtt 00| a1eng d .b10026307 AIT RSPR no. CS-89-1 Nednin Luengwattanapong A computer assisted system for extreme values frequency analysis Bangkok : Asian Institute of Technology, 1989 53 p. Research studies project report ; no. CS-89-1 A research study submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Engineering and Technology Research Studies Project Report (M. Sc.) - Asian Institute of Technology, 1989 In the present study, an attempt was made to investigate the frequency distribution of flood data at various stations located all over Thailand. For this purpose, three important distributions, namely the Gumbel or Extreme Value Type-I (EV1). the Generalized Extreme Value (GVE) and the Log-logistic (LLG), were considered by using the most appropriate methods of parameter estimation. To facilitate the analysis, a user-friendly software package was also developed. From the results obtained for 64 data sets, each having a length of at least 20 years of records, it was found that - the GEV can be used to fit the flood data in almost all cases, followed by the LLG. - for the GEV. the method of probability weighted moments (PWM) should be used since it is less biased and more efficient. - the PWM should also be used for the LLG because it is less biased. - the software package can conveniently be used as a tool for all the analyses involved. It is Expected that these that results and the package will be very useful further studies where a regional analysis is undertaken. Distribution (Probability theory) Data processing Huynh, Ngoc Phien, Chairperson Tabucanon, Mario T., Examination Committee Skjesol, Trond, Examination Committee The Australian Government Asian Institute of Technology. Research studies project report ; no. CS-89-1 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17782 .b10026307 mnait y 240409 2 951012 m a y 2 mnait mnait mnarc 20 40 Barcode : 30050003121364 CREATED : 1995-10-13 RECORD # : i10007982 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003121372 CREATED : 1995-10-13 RECORD # : i10007994 LPATRON : 1010637 LCHKIN : 1999-06-09 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120238778 CREATED : 2016-03-30 RECORD # : i12911951 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 20909 20909 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT RSPR no. CS-89-1 30050003121364 2026-08-18 08:45:41 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT RSPR no. CS-89-1 30050003121372 2026-08-18 08:45:41 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no. CS-89-1 30050120238778 2026-08-18 08:45:41 2026-08-18 40