干旱指数-标准化降水指数SPI计算的matlab程序。输入数据为各月的降水量-Drought Index- the standardized precipitation index SPI calculation matlab program. Input data for the month of precipitation

spi计算程序，方便实用操作简洁 方便实用！经典资源(spi SPI calculation program, convenient and practical, concise operation)

用于计算标准降水指数SPI的程序，可以较方便的进行spi的提取(Used to calculate the standard precipitation index SPI procedures, can be more convenient for spi extraction)